For rhododendron hybridisers

Hybridisers - Seed-species - Pollen-species - Seed-hybrid - Pollen-hybrid -   Hybrids/year - Back

All hybrid data based on IRRC, JARS or ICRA.?
IRRC
The International Rhododendron Register and Checklist, Royal Horticultural Society.

JARS
Journal of the American Rhododendron Society

ICRA
International Cultivar Registration Authority

For questions, suggestion or comments do not hesitate to email.


List of Hybridisers   ordered by:   #plants   name
#Name# Plants
1Aarts, , Netherlands1
2Aasland Nursery, , 1
3Abbey G., Eltham, London, gardener of Dr. Stocker1
4Abbot, F.L., Bellows Fals, Vermont, USA7
5Aberconway, Lord, Bodnant, Tal-y-Cafn, Wales259
6Adams, H., , 1
7Adams, N., , 1
8Adams-Acton, G.M, London, England25
9Ahern, T. (Tom), Bethlehem, PA, USA9
10Alberts, G.J., , 1
11Allen, E.F., , 2
12Amann,I.L., Bozman, Maryland, USA26
13Amateis, Edmond, Brewster, New York, USA7
14Ambrosius, R., Dresden, Germany7
15Anastos, N., , 1
16Anderson A.T. & S.A, , 12
17Anderson, E., , 1
18Anderson, E. T. Mrs, Longview, Washington, USA6
19Anderson, R.L., Eureka, California, USA2
20André, E. F., , 1
21Angelini, A., , 1
22Anne, Countess of Rosse and NT (Nymans), , 4
23Arblaster, G., Eyemouth, Berwickshire, Scotland4
24Arends, G., Wuppertal, Germany14
25Arends, W., Wuppertal-Ronsdorf, Germany8
26Argent, G., , 1
27Arneson, Ivan & Robertha, Arneson Nursery, Canby, Oregon, USA

  Arneson, Ivan & Robertha
22
28Arnold Arboretum, Jamaica Plain, Boston, MA, USA1
29Aromi, E.J, Mobile, Alabama, USA

  Aromi, E.J
158
30Arsen, F.A., Lindenhurst, Long Island, New York, USA6
31Askjaer, S.A., Spøttrup, Denmark1
32Aunsbjorn, B., , 2
33Aunsbjorn, T., , 1
34Australia, , 32
35Australian Rhododendron Society; Victoria, , 11
36Bacher, J.G., Portland, Oregon, USA3
37Backhus, A.W., Edewecht-Kleefeld, Germany3
38Bagoly, Lewis, Stafford, PA, USA4
39Bahnson, E.R., Winston-Salem, North Carolina, USA2
40Baker, , 1
41Baker, G.L., Astoria, Oregon, USA4
42Baker, H.S., Longview, Washington, USA2
43Balch, R.W., Parks & Garden Dept., Dunedin, New Zealand2
44Baldanza, S., Benton Harbor, Michigan, USA4
45Baldsiefen, Warren, Bellvale, New York, USA4
46Ballalheannagh Gardens, , 1
47Banks, W.L. & R.A., , 1
48Barber, , 2
49Barbier & Co, Orleans, France3
50Barefield, G.E., Seattle, Washington, USA9
51Barlup, Jim, Bellevue, USA

  Barlup, Jim
192
52Baron de Pronay, , 1
53Barto, James, Eugene, Oregon, USA8
54Basford, J.S., , 1
55Bauer, , 1
56Bauers, K. & Getlina, D., , 1
57Baumann, J., Ghent, Belgium28
58Bawden, H.E., , 1
59Beasley, J., , 1
60Beasley, W.G., Transplant Nursery, Lavonia, Georgia, USA4
61Becales, Joe, Glen Mills Pennsylvania, USA4
62Beck, H.P. Mrs., , 2
63Beekman, E., , 1
64Begg, K., , 1
65Begg, L., , 3
66Behrens, A., , 1
67Behring, R., St. Catharines, Ontario, Canada22
68Belder de, R., , 3
69Belgium, , 6
70Berg, Harold, Rochester, MI, USA1
71Berg, J., Bremen, Germany1
72Berg, Warren, Port Ludlow, Washington, USA

  Berg, Warren
24
73Bergman, W. R., , 1
74Berna Park Nurseries, , 3
75Bernd Jackst, Bockhorn, Germany2
76Berry, Mrs A.C.U., , 2
77Bertin, Versailles, France3
78Betteridge, D., , 2
79Bier, G. J. & Sons, Melle, Belgium3
80Bill, H., Enosburg, Vermont, USA1
81Biltmore Gardens, Asheville. North Carolina, USA2
82Birck, Jens, Kastrup, Denmark

  Birck, Jens
6
83Blaauw & Co., Boskoop, Netherlands2
84Black, M., , 1
85Blake, F.S. & G.C., , 3
86Blaney, L.T., Oregon State University, Oregon, USA1
87Blansit, N. (Nolan), Cottage Grove, Oregon, USA

  Blansit, N. (Nolan)
4
88Bledsoe, C.W., , 1
89Blough, G.L. & M.A., , 1
90Blough, R.L., , 2
91Blumhardt, O. S., Koromiko Nurseries, Whangarei, New Zealand21
92Bobbink & Atkins, East Rutherford, New Jersey, USA31
93Boddaert, B., , 4
94Boese, G., , 2
95Bohlken, H, Edewecht, Germany5
96Bolitho, Sir Edward, , 5
97Bondita, R.J., , 2
98Bones, Dan, Florence, Oregon, USA4
99Boone, D., , 1
100Boot & Co, Fa., , 1
101Booth, J., , 6
102Boscawen, J.T. Hon., , 1
103Boskoop, Research Center fo Arboreus Crops, Netherlands20
104Bosley, P.R., Bosley Nursery Co., Mentor, Ohio, USA4
105Boswell, E.D. Mrs, , 2
106Boswells Nurseries, , 1
107Boulter V.J. & Sons, , 6
108Boulter, F., , 1
109Boulter, V.J., , 25
110Boursault, , 1
111Bovee & Mayo Rare Seed Co., , 7
112Bovee Robert M., Oswego, Oregon, USA14
113Bovees Nursery, , 4
114Bowers, C.G., , 1
115Bowhan, Tom and Emma, Eugene, USA2
116Bowman, J. & R., , 3
117Bowman, P.J., , 1
118Bowman, R.F., , 1
119Braafladt, , 2
120Brack, W. (Werner), St. James, New York, USA

  Brack, W. (Werner)
12
121Brady, Gene, Washington, USA1
122Bramley, A.C., Kallista, Victoria, Australia9
123Brandt, C.R., , 1
124Brandt, Lester E., Tacoma, Washington, USA38
125Braukmann. W., , 1
126Brechtbill Nursery, Eugene, Oregon, USA1
127Briggs Nursery, , 12
128Briggs, B.T., , 3
129Brim, J.D., , 6
130Bristow, O.R., , 8
131Brockenbrough, E.C, Bellevue, Washington, USA20
132Brooks, A.R., Concord, Massachusetts, USA3
133Brooks, L.L., , 6
134Brothers, P.G., , 1
135Broughton, gardener to Lee of Hammersmith. London, England1
136Brouse, F.W., , 1
137Brown's Nursery, , 1
138Brown, C.E., , 5
139Brown, P., , 1
140Brueckner, J.B., Mississauga, Ontario, Canada26
141Brugge, , 1
142Bruns, J Nursery, Bad Zwischenahn, Germany28
143Bruns, Joha, Bad-Zwischenhan, Germany1
144Bruns, W., , 9
145Bulgin, L.W., , 11
146Bull, W., , 4
147Bump, F., , 1
148Bunge, , 1
149Bunnell, J.O., , 3
150Burlingame, C.R., , 1
151Burnes, F.E. (Frances), Vida, OR, USA2
152Burns, R.E., Vida, OR, USA4
153Byls, J., , 19
154Byrkit, M.E., , 3
155Böhlje G. D., Westerstede, Germany8
156Caddy, N. Mrs, , 1
157Cagle, D.J., , 1
158Caldecot & Claremont Nursery, , 1
159Caldwell, H.A. Jr., , 3
160Caledonia Nursery, , 3
161California Camellia Gardens, San Fernando, CA, USA1
162Callaway Gardens, , 1
163Camelia Grove Nursery, , 13
164Camellia Lodge Nursery, , 17
165Campbell, B.W., Ravensbourne, Dunedin, New Zealand4
166Canada, , 1
167Cannon, C., , 10
168Caperci, J.F., , 5
169Caperci, Mr & Mrs J. F., , 2
170Carlson's Gardens, (Bob & Janice Carlson), South Salem, New York, USA86
171Carmichael (gardener to Prince of Wales), Sundringham, Norfolk, UK3
172Carter's, , 3
173Carter, R., , 2
174Cary, E.A., , 6
175Case, L.C., , 1
176Cattaneo Vivai, , 1
177Cavadini, L., , 1
178Cavender, R.W., Red's Rhodies, Sherwood, Oregon, USA4
179Cels, , 1
180Chandler, B. & Son, , 1
181Chandler, E.E., , 1
182Charbet, G., Fort Bragg, CA, USA1
183Charozé, , 2
184Charvet, , 2
185Cheal, J. & Sons, , 1
186Cherry, R.J., , 19
187Childers, A.A & M., , 16
188Childers, A.A., , 6
189China, , 1
190Chisholm, J.J., , 19
191Chugai Nursery Co., Kobe-city, Hyogo, Japan17
192Cieplucha, J., , Poland1
193Cisney, M.E., , 1
194Clagett, W.L. (Buck), USA, Derwood, Maryland

  Clagett, W.L. (Buck)
39
195Clancy, B., , 10
196Clark, B., , USA2
197Clark, R.W., Olympia, Washington, USA18
198Clarke, E. Mrs., , 1
199Clarke, George.W., Portland Oregon, USA22
200Clarke, S. (Steve), Clarke Nurseries, Long Beach, WA, USA1
201Clarke, S.R., Borde Hill, West Sussex, England22
202Clausen, , 1
203Clay, Les & Bev, Langley, BC, Canada1
204Clement, F., , 1
205Clibrans Nursery, , 3
206Clyde Smith, J., , 1
207Coates, A., , 1
208Cockeram, Eugene, , 2
209Coker, R.J. Mrs., , 15
210Cole, D.J., , 21
211Coleman, J.H., , 1
212Coleman, S.D., , 2
213Colombel, Marc, Menez-Rohou, Fouesnant, France

  Colombel, Marc
13
214Colville, Col. N.R., Launceston, Cornwall, UK1
215Comersford Nursery, , 1
216Coners, G., , 2
217Congreve, A., , 1
218Consolini, A., Heritage Plantation, 14
219Constantini, C., , 1
220Conway, , 1
221Cook, A.R., , 1
222Cook, Alleyne, , 1
223Coolidge Rare Plant gardens, , 35
224Corbin, Dr. William L., Yamhill, Portland, Oregon, USA1
225Cornell, P.B., , 2
226Costantini, C., , 1
227Cowan, J.M., , 1
228Cowles, J.C., Stow, MA (superintendent of Dexter Estate 1959-1967), USA40
229Cox, E.H.M., , 3
230Cox, K.N.E., Glendoick, Scotland2
231Cox, P.A. & K.N.E., Glendoick, Scotland21
232Cox, Peter A., Glendoick, Scotland38
233Craig, D.L., Kentville, Nova Scotia, Canada4
234Craig-Mooney, A., Buckland Monachorum, Devon, England2
235Craven, L.A., , 2
236Crober, L.G., , 1
237Crosfield, J. J., Embley Park, Romsey, Hampshire, UK18
238Cross J.E., , 2
239Croux & Fils, Châtenay-Malabry, France12
240Croux, G., , 3
241Crown Estate Commissioners, Windsor, Berkshire, England67
242Cruttwell, N.E.G., Goroka, Papua New Guinea1
243Cullinane, M.D., , 3
244Cunic, Jane, Pittsburg, PA, USA1
245Cunningham, , 3
246Currie, R., , 1
247Cuthbert, Messrs, , 2
248Cutten, R., , 2
249Dale, W.A., Sidney, BC, Canada1
250Dalibon, , 1
251Dallière, A., , 8
252Danneil, H.-J, , Germany3
253Darney, Charles O. III, Parkersburg, PA, USA1
254David, L. Mrs, , 1
255Davidson's Nurseries, , 3
256Davies of Ormskirk, Lancashire, UK1
257Davies, I, Ormskirk, Lancashire, England26
258Davies, Joe, Sumner, Washington, USA1
259Davis, J.A., , 7
260de Clerck d'Olsene, , 1
261de Clercq, L., , 4
262de Cock, E., , 2
263de Cock, J. & Soeur, , 2
264de Cock, L., , 7
265de Coninck, F., , 2
266de Coninck-Dervaes, L., , 1
267de Kneef, J., , 2
268de Meulemeester, M., , 1
269de Meyer, E., , 5
270de Reuse, A., , 1
271de Strycker, J., , 1
272de Waele, F., , Belgium1
273de Witte, , 1
274Deckert, E., , 2
275Deerfield Nurseries, , 7
276Delaware Valley Nursery, , 1
277Delmotte, J., , 1
278Delp Weldon E., Harrisville, Pensylvania, USA426
279Demay, H., , 3
280den Ouden & Son, , 5
281Deppiesse, , 1
282Desfossé-Thuillier Fils, , 1
283DeWilde, R., , 1
284Dexter Study Group, , 1
285Dexter, C.O., Sandwich, MA, USA

  Dexter, C.O. (1862-1943)
147
286Dicksons, , 1
287Digby, Lord, , 13
288Disney, J., , 2
289Dixon, G., , 11
290Dobbs, , 1
291Dodd, W., , 1
292Domoto, T., , 2
293Domschke, O, Cölln bei Bautzen, Germany1
294Doppel,J., Lenharstville, PA, USA31
295Dosser, D.J., Lower Wilmot, Tasmania, Australia76
296Dover Nursery, Sandy, Oregon, USA1
297Dowry, G. H., , 1
298Drake, E. F., Olympic Peninsula, WA, USA3
299Drayson R.J.R, Wimborne, Dorset, England15
300Dreer, H.A., , 1
301Dresden Botanic Garden, , 1
302Drewry, J.H., , 1
303Druecker, J.S., Fort Bragg, CA, USA4
304Dryden, K.N. Mrs, , 1
305Duncan & Davies, , 6
306Dunedin Rhododendron Group, , 4
307Dunleath, Lord, , 1
308Dvořák, J., , 5
309Dürre, F.W., Westerstede/Linswege, Germany3
310Earl of Morley, , 1
311Early, S.C., , 2
312Eaton, G., , 1
313Edinburgh, R.B.G., , 3
314Edwards, A.J.B., , 1
315Egan, E.K., , 2
316Eichelser, John E., Olympia, Washington, USA4
317Eisoldt, R., , 2
318Elliot, Jeffrey, Christchurch, New Zealand2
319Elliott, James A., Astoria, Oregon, USA20
320Elliott, W., , 20
321Elmer, G. & T., , 6
322Embley Park, (J.J. Crossfield), Hampshire, England2
323Emerson, G.C, , 1
324Endsleigh Estate, , 1
325Endtz, L.J. & Co, Boskoop, Netherlands17
326Esch, B., Portland, Oregon, USA3
327Eschrich, G., , 1
328Etabl. Linden, , 3
329Evans Edinburgh, , 1
330Evans, J.B., Budock, Falmouth, Cornwall, England3
331Evans, J.M.J., , 2
332Evans, J.P., , 3
333Everitt, S.A, Huntington, Long Island, New York, USA2
334Exbury, The Rothschild Estate, Hampshire, England45
335Faragher, C., , 2
336Farwell, E.E., , 1
337Faulk, P., Tacoma, Washington, USA1
338Faull, J., , 1
339Fawcett, C.P., Tacoma, Washington, USA2
340Fawcett, T.B., , 1
341Felix & Dijkhuis, Boskoop, Netherlands19
342Felix, B.B.C., Felix & Dijkhuis, Boskoop, Netherlands6
343Fetterhoff, W.M., Gibsonia, Pennsylvania, USA23
344Firma C. Esveld, , 10
345Firma S. Rinz, , 1
346Firma S. Rinz, , 1
347Firma S. Rinz, , 2
348Firma Seidel, , 25
349Fisher, L. Son & Sibray, , 8
350Fitzburg, A.R., , 2
351Flavell, Richard, New Haven, USA1
352Fleischmann, C., Wiesmoor, Ostfriesland, Germany11
353Flora Markeeta Nursery, , 1
354Folding, J., , 3
355Ford, J.E., , 5
356Forster, O., Lehenhof, Austria1
357Forster, R.R., , 15
358Fortescue, L.S., , 7
359Fortie, B., Ghent, Belgium1
360Fortune, R., , 1
361Foster, H.L., , 2
362Foster, M.C., , 1
363Fowle, H., , 2
364Fox, R.B., Penjerrick, Cornwall, UK2
365France, , 7
366France, L., , 2
367Francoisi Brothers, , 1
368Fraser, , 2
369Fraser, G., Vancouver Island, BC, Canada5
370Fratelli Rovelli, , 4
371Fratelli Savioli, , 2
372Frederick, , 1
373Frei, H., Wildensbuch, Switzerland5
374Frei-Glaus, E. & H., , 1
375Freimann, Lev. Mrs., Bellingham, Washington, USA4
376Frets, C. & Sons, , 2
377Fretz, L., , 1
378Frisbie, L.F., Tacoma, Washington, USA13
379Fromow & Sons, W., , 1
380Frost, , 1
381Fujioka, Frank, Whidbey Island, USA

  Fujioka, Frank
31
382Fuller, H. & S., , 2
383Furman, F., Bridgewater, NJ, USA3
384Furman, R.A., Brewster, MA, USA9
385Gable, J.B., Stewartstown, Pennsylvania, USA

  Gable, J.B.
164
386Galle, F.C., , 6
387Gallici, H., , 1
388Gambril, , 1
389Garbutt, T.A., , 9
390Gardeners of Villa Pallavicino, , 1
391Gardeners of Villa Taranto, , 1
392Garrett, J. & D., , 6
393Gartrell, R. D., Highland Farms, Black Mountain, North Carolina, USA66
394Gatke, R.M., , 1
395Gauntlett & Co, , 1
396Gebr. Mardner, , 13
397Gehnrich, H.C., , 2
398Genzel, U., Westerstede, Germany6
399George A.F., Hydon Nursery, Godalming, Surrey, England

  George A.F.
44
400George, E.W., , 1
401George, R.E., Sammamish, Washington, USA2
402Geraud, M., , 1
403Gerdeman, J.W., Yachats, Oregon, USA6
404Germany, , 9
405Gertnere, D., , 6
406Gheldolf, C., , 7
407Gijselinck, A., , 3
408Gill, Richards & Sons, Penryn, Cornwall, England27
409Gillies, G, , 2
410Girard Nurseries, , 16
411Girard, P.E., Geneva, Ohio, USA56
412Glaser, K., , 12
413Glass, Mrs P., , USA1
414Glendoick Gardens, , 3
415Glenn Dale, , 1
416Glennie, W.E., , 2
417Glenoire Nursery, , 3
418Goheen. Dr. David, Camas, Washington, USA40
419Golden, H., , 1
420Goodrich, J.M. (Jane) & Ray, Vienna, Virginia, USA

  Goodrich, J.M. (Jane) & Ray (-2009)
4
421Gordner, D., Puyallop, Washington, USA1
422Gordon, I.F., Utiku, Taihape, New Zealand3
423Gordon, Lady Adam, , 3
424Gordon, R.C, , 11
425Gorer, G., Haywards Heath, West Sussex, England3
426Gowen, J.R., , 17
427Grace, G.D., , 6
428Grall, R., , 1
429Granston, Mrs. R, , 1
430Grant, Mrs. G., Orton, Temuka, New Zealand2
431Greentree, M.E., , 24
432Greenwood Gardens, , 7
433Greer Gardens, , 13
434Greer, E. Mrs, Eugene, Oregon, USA1
435Greer, Harold E., Eugene, Oregon, USA52
436Gregory, R.M., , 1
437Greig, E,J. & M., Royston Nurseries, Vancouver Island, BC, Canada13
438Greig, E.J., Royston Nurseries, Vancouver Island, BC, Canada5
439Griswold Nursery, Kirkland, WA, USA1
440Griswold, D.A., , 2
441Griswold, G., Kirkland, WA, USA4
442Griswold, Mrs. W.L. (Doris), Krikland, WA, USA6
443Groebel, , 1
444Grothaus, Mrs M., , 1
445Guérin, M, , 2
446Guldemond, , 1
447Gunkel, , 1
448Gustafson, R.H., West Windsor, New Jersey, USA9
449Guttormsen, W.L., Greenwood Gardens, Canby, Oregon, USA77
450Guyens, H.J.A., , 21
451H. Robenek & D.G.Hobbie, , 1
452Haag, C.R. & V. (Velma), Brevard, NC, USA

  Haag, C.R. & V. (Velma)
18
453Hachmann, Hans, Barmstedt in Holstein, Germany

  Hachmann, Hans
352
454Hachmann, Holger, , 19
455Haerens & Wille, , 16
456Haerens, A., St. Amandsberg, Belgium35
457Haerens, Gebr. (August & Jan), Somergem, Belgium1
458Haerens, J., , 15
459Haerens, J.B. & Sons, , 2
460Haerens, W., , 1
461Hage W.C. & Co., Boskoop, Netherlands9
462Hagen, J.C., Boskoop, Netherlands1
463Hager Nurseries, , 4
464Hager, D., Hager Nurseries, Spotsylvania, Virginia, USA15
465Hahn, Louis & Sons, , 1
466Haig, C., , 1
467Hall, E.G., , 1
468Hall, M.E., Bridgewater, Massachussetts, USA3
469Hall, S., , 1
470Halligan, P., , 3
471Halopé, F, , 1
472Hambro, R.O., , 1
473Hamilton, I., , 1
474Hamilton, W.F., , 1
475Hammond Nursery, Arlington, Washington, USA1
476Hancock, L, , 2
477Hanger, F.E.W., RHS Garden, Wisley, Surrey, England45
478Hanke, W., , 1
479Hansen Ruth, Portland Oregon, USA2
480Hansen, Svend, Kernhuset, Denmark1
481Hardgrove, D.L., , 25
482Hardijzer W. H., Boskoop, Netherlands3
483Hardy, G.A., , 5
484Hardy, Maj. A.E., Hythe, Kent, UK9
485Harmon, R., , 1
486Harmsen, G., , 3
487Harrington, R., , 1
488Harris, A., , 2
489Harris, J., , 2
490Harris, J.D., , 1
491Harris, J.G.E., , 1
492Harris, J.O., Lawrenceville, Georgia, USA17
493Harrison's Nursery, , 2
494Harrison, E.G.W.W., Bodmin, Cornwall, England39
495Harrison, R.H. Mrs., , 2
496Hartl, O., , 2
497Harvey, M.J., , 1
498Harvey, Mr & Mrs F.W., , 1
499Hatori, M., , 3
500Haverfield, J., , 1
501Haworth-Booth, M., Farall Nurseries, Surrey, England18
502Hayes, I.A., , 3
503Hazlewood Bros., , 3
504Headfort, Lord, Kells, Meath, Ireland4
505Heal, H., , 1
506Heft, L., , 1
507Heinje, D., Jeddeloh, Germany10
508Hellebuyck, L., , 1
509Heller, C.G., , 5
510Henderson & Co, Pineapple Nursery, London, England18
511Heneage-Vivian, A.W., , 16
512Henny & Wennekamp, Salem, Oregon, USA5
513Henny, John, Brooks, Oregon, USA

  Henny, John (1909-1995)
10
514Henny, Rudolph, Brooks, Oregon, USA

  Henny, Rudolph (1909-1963)
70
515Herbert, C., , 14
516Herbert, Honourable & Reverend W., Wetherby, Yorkshire, England2
517Hermann, E., , 8
518Hershey's Azalea Farm, , 4
519Hershey, R., , 2
520Hess, N.E., , 3
521Hesse, H., , 6
522Hesse, H.A., , 1
523Heursel, Jozef, Melle, Belgium13
524Hicklin, C., , 1
525Hiers, C. J., Auburn, Alabama, USA1
526Higashi Nursery, , 1
527Higginbothom, J.R., , 2
528Highclere, , 1
529Hill, J.W. Mrs., , 10
530Hill, W., Poulsbo, Washington, USA4
531Hilliers, , 4
532Hilscher, S., , 1
533Hinerman, D.L., Ann Arbor, Michigan, USA14
534Hines Nurseries, , 2
535Hinton, D.N., , 4
536Hobbie, Dietrich G., Westerstede/Linswege, Germany

  Hobbie, Dietrich G.
126
537Holden, A.J., , 3
538Holden, P., , 2
539Holford, Sir George, , 1
540Holland B., , New Zealand3
541Holland, S., , 1
542Hollowell, E.A., , 2
543Holly Heath Nursery, , 8
544Holman, N.T., , 1
545Holmes Nurseries, , 3
546Holmes, A.G., , 10
547Holmes, A.G. Mr & Mrs, , 1
548Holmsomback, O., , 9
549Holz H.-P., , 1
550Hooftman, H.J., , 5
551Hoogendoorn Nurseries, , 1
552Hooper, J.D., , 2
553Horlick, Sir James, Isle of Gigha, Scotland32
554Horlick, Sir John, , 1
555Horner, W.L., , 1
556Horsborough, L., , 1
557Horstman, G., , 4
558Hovey, C.M., , 1
559Howells, A., , 2
560Huber, R.R., , 2
561Hughes, M., , 1
562Huisman, T, Nijensleek, Netherlands10
563Hume, H. H., , 1
564Hunnewell, , 1
565Huntingdale Nursery, , 1
566Hutchison, L.A., Mosgiel, Otago, New Zealand9
567Huthnance, G., , 2
568Hyatt, D.W. (Don), McLean, VI, USA

  Hyatt, D.W. (Don)
5
569Hübbers, K-H., Kranenburg, Germany

  Hübbers, K-H.
59
570Hyde, W.G.T., , 17
571Hydon Nurseries, , 4
572Imrie, S.T., , 2
573Ingram, C., Benenden, Kent, England53
574Ishii, F., , 1
575ISRIA, , 3
576Ito, Ihei, Register from 1692, Japan85
577Ivens, , 1
578Ivery, J., , 17
579Iveson, , 1
580Iwayama, S., , 1
581Jack, R.H.L., , 1
582Jackson, T. & Son, Hampton Court, Middlesex, UK7
583Jacob-Makoy, L., Liege/Luik, Belgium28
584Jacobs, D., , 1
585James Delbert W., Eugene, Oregon, USA34
586James, R. Mrs, , 1
587Jamin & Durand, , 1
588Janeck, Kenneth, Tacoma, Washington, USA4
589Jelínek, J., , 2
590Johnson, A.P., , 3
591Johnson, D.B., , 4
592Johnston, J., , 1
593Johnstone G.H., Trewithin, Cornwall, England6
594Jones, K., Fort Bragg, CA, USA2
595Jordan, E.W., , 9
596Jordan, H, , 1
597Judson, , 2
598Jury F. M., , 8
599Jury, L.E., New Plymouth, New Zealand3
600Jury, M., , 6
601Jusa, , 1
602Kaiser, E.L., , 1
603Kasai, K, , 1
604Kavka, B., Pruhonice, Czech Republic17
605Kawazu, N. Mrs., , 1
606Kehr, A.E., Hendersonville, North Carolina, USA20
607Kellygreen Rhododendron Nursery, , 2
608Kelmscott Azalea Gardens, , 6
609Kentville Research Station, , 2
610Kerkhoff, Betrieb, , 2
611Kerkhoff, W., , 1
612Kern, W, Woodlyn, Pennsylvavia, USA1
613Kerrigan, Howard, , 25
614Kersbergen, Gebr., , 20
615Kersey, R.J., , 5
616Kesterson, G.H., , 3
617Kew, Royal Botanical Gardens, Surrey, England11
618King, E., , 1
619King, L.M. Mrs., Wanganui, New Zealand5
620King, R., , 2
621King, S.M., , 1
622Kingdon Ward, , 2
623Kinghorn, F.R., , 1
624Kint Brothers, M & J, Lochristi, Belgium6
625Kirk, E., , 4
626Klein, , 1
627Klimavicz, J.F., , 12
628Kline, Howard R, Newmanstwon, PA, USA1
629Kluis Antony, Boskoop, Netherlands4
630Knight & Perry, (J. Knight & T. A. Perry), Exotic Nursery, Chelsea, London, England55
631Knights, Tony, , 1
632Knippenberg, Mrs. J. F., , 11
633Knorr, B., , 1
634Knuttel, A.J., , 1
635Kondratovičs, Rihard, Riga, Latvia

  Kondratovičs, Rihard
57
636Konrad, Dr. G. Mark, Sewickley, PA, USA2
637Koppeschaar, W.F., , 6
638Korn, R., Renton, Washington, USA2
639Korth, A.C., Soquel, California, USA3
640Koster & Co., , 7
641Koster & Sons, , 8
642Koster M. & Sons, Boskoop, Netherlands101
643Koster, D.A., , 3
644Koster, P.M., , 2
645Kramer, , 1
646Krempasky, G., , USA1
647Kristensen, Palle, , 1
648Kromhout & Co, , 1
649Kruschke, F. Nursery, Clackamas, Oregon, USA1
650Kruse, R., , 1
651Kuhn, H., Muttontown, New York, USA2
652Kuwano, T., , 4
653Kyndl, J., , 4
654Kyoma Yokota Nursery, , 6
655La Bar's Nursery, , 2
656Lady Loder, , 6
657Lady Marion Philips, , 1
658Laird, R.B. & Sons, , 1
659Lancaster, Ben, F., Lackamas Gardens, Camas, Washington, USA53
660Landauer, H., , 1
661Lane, H. & Son, , 2
662Lane, M.J., , 1
663Lang, T. & Co, , 1
664Langdon, G., , 6
665Langton, E., , 1
666Larson, H.L., Tacoma, Washington, USA77
667Lauer, M., , 1
668Laurel Lake, , 1
669Laurentius, H., , 6
670Lawton, L.H., , 1
671Laxdall, S. Mrs, , 5
672Layritz Nursery, , 1
673Le Duigou, L., , 15
674Leach, Dr. David G., North Madison, Ohio, USA

  Leach, Dr. David G.
118
675Lee, J. & C., Hammersmith, London, England5
676Lefevre, , 4
677Legendre, J., , 1
678Lehmann, C.A., Klampenborg, Denmark

  Lehmann, C.A.
3
679Lelliott, T., Boronia, Victoria, Australia23
680Lem Halfdan, Seattle, Washington, USA72
681Leonard, , 3
682Leonardslee Gardens Nursery, , 1
683Leroy, A., Angers, France11
684Leroy, L., , 17
685Lesèble, , 1
686Lewis, D., , 5
687Lewis, G.D, Montpelier, Vermont, USA19
688Liebig, L.L., Dresden, Germany30
689Linden, J., , 7
690Lindley, J., , 3
691Little, P.L., Piping Tree Gardens, Beaverdam, Virgina, USA47
692Llewelyn, T.D., , 1
693Lock, J.A.N., , 1
694Lockhart, R.D., Aberdeen, Scotland1
695Loddiges, , 1
696Loddiges, C. & Sons, Hackney, London, England38
697Loder, G.H., , 10
698Loder, Sir Edmund, Horsham, Sussex, England58
699Loder, Sir Giles, Cuckfield, West Sussex, England

  Loder, Sir Giles
12
700Lofthouse, J.G., Vancouver, British Columbia, Canada53
701Lohbrunner, Edmund D., , USA1
702Lohse, Dirk, , 1
703Loon R. van, , 2
704Looye, Jack, Niagara on the Lake, Ontario, Canada23
705Love, M.V., , 2
706Lovegrove, F., , 3
707Lowinsky T.H., Tittenhurst, Sunninghill, Bershire, UK12
708Lowinsky, A.M., , 2
709Luscombe. T., , 1
710Lyons, M.W., Eugene, Oregon, USA5
711Lyons, R. (Ruth), Oregon, USA1
712Lüttge, G, , 1
713MacDonald, R., , 2
714Mackay, M., , 2
715Mackenzie, E. Mrs, , 2
716Mackoy, J, , 1
717MacMullan, D. (Dennis), Hamburg, Pennsylvania, USA5
718Maehara, H., , 1
719Magness, W.R., Brandon, Oregon, USA1
720Magor, E.J.P., Lamellan, St. Tudy, Cornwall, England61
721Magor, E.W.M., , 3
722Makino, T., , 1
723Malone, H.R., , 3
724Maloney, F. Mrs., Seattle, Washington, USA1
725Manenica, Mrs A., Aberdeen, Washington, USA2
726Mangles, , 1
727Mangles James Henry, Valewood, England30
728Manten, H., , 1
729Marcellus, J.A, , 2
730Marchant, H., , 1
731Marchant, W.J., , 1
732Mardner, Gebr., Mainz, Germany2
733Markeeta Nursery, , 1
734Marshy Point Nursery, , 3
735Martin, A,C, , 2
736Martin, W., , 2
737Mason, , 3
738Matlack, M. B., , 1
739Matouš, J, , 4
740Maupoil, C., , 2
741Mauritsen, Richard, Kent, Washington, USA5
742Maxwell, Sir John, , 2
743May, J., , 10
744Mayer, R., , 3
745Mayo, R.P., , 9
746Mayo, R.P. Nurseries, , 3
747McBrier, B.P., , 1
748McClure, D.K., , 1
749McClure, W., , 2
750McCormack, A., , 1
751McCulloch, S., Olympia, WA, USA3
752McDonald, S., , 15
753McDonald, S.F., Hampton, Virginia, USA1
754McGuire, J. J. (dept. Plant Sciences, RI University), Kingston, Rhode Island, USA2
755McKeefer, J.R., , 3
756McMillan, A., , 1
757McMurry, , 1
758McNew, C. (Charles), Kelso, WA, USA

  McNew, C. (Charles)
2
759McQuire, J.F., Farnham, Surrey, England7
760Means, R.L., , 4
761Meerkerk, A., Meerkerk Rhododendrons Gardens, Greenbank, Washington, USA3
762Mehlquist, G.A.L, Storrs, Connecticut, USA26
763Meltzer, H.L., Neustadt a/d Waldnaab, Germany20
764Mensing, L., , 1
765Mesman, C., , 1
766Messel, L.C.R., , 3
767Metcalfe, S.K., , 1
768Methven, T. & Son, Edinburgh, Scotland11
769Metselaar, A.C.H., , 1
770Meulemeester, J. de, , 1
771Meyer, H., Barmold-Baumschulen, Uchte, Germany1
772Meyer, R. de, Lochristi, Belgium2
773Mezey de, A., , 1
774Mezitt, E.V., Weston Nurseries, Hopkinton, Massachusetts, USA78
775Mezitt, R.W., , 2
776Michael, Charles, Gorran, Cornwall, England1
777Michener, M.W., , 6
778Milfield, R.M., , 2
779Millais Nurseries, , 5
780Millais, E.G., , 13
781Miller, , 1
782Miller, G.T., , 1
783Minahan, J.F., , 3
784Minch, F., Puyallup, Washington, USA11
785Minnesota Landscape Arboretum, , 3
786Mitchell, R.A., , 10
787Mittendorf, , 1
788Miyami-en Nursery, , 9
789Moench, , 1
790Moerloose, , 1
791Moffat, R, , 2
792Monrovia Nursery, , 3
793Moore, K., , 1
794Morel, , 1
795Moreux, , 1
796Morlet, G., , 9
797Morrison, B.Y., Pass Christian, Mississippi, USA324
798Moser & Son, , 18
799Moss, W., , 1
800Mossholder, R, , 1
801Mossman, F. D., Vancouver, Washington, USA9
802Motzkau, , 7
803Motzkau, H.W., , 3
804Moyers, R., , 3
805Moyles, E.W., Oakland, California, USA14
806Moynier, W.A., , 8
807Mraw, L.B., , 1
808Mugridge, C., Tremeirchion, St Asaph, Denbigshire Wales, UK9
809Mulligan, B.O., , 2
810Murcott, R., , 8
811Murray, E., Port Angeles, Washington, USA2
812Mustila Arboretum, , 5
813Myers, G., , 1
814Myers, W.A., , 1
815Müller, Heinz, , 4
816Müller, J.B., Feldkrich bei Bollweiler, Germany

  Müller, J.B. (1813-1892)
15
817Müssig, K., , 2
818Nagel, W. (Walter), Bretten, Baden, Germany29
819National Trust for Scotland, , 4
820Nearing, G.G., Ramsey, NJ, USA

  Nearing, G.G.
37
821Nellie Kelly Nurseries, , 1
822Nelson, B., Squamish, Washington, USA5
823Ness Botanic Gardens, , 1
824New Zealand, , 18
825New Zealand Rhododendron Association, , 6
826Newberry, P., , 3
827Newcomb, E.F., , 7
828Newcomb,L.L., Snohomish, Washington, USA18
829Nichols, I.C., , 9
830No IRRC registration data, , for hybridiser1
831Noble, C., Standish & Noble, Bagshot, Surrey, England41
832Nomblot-Bruneau, , 2
833Norman, F.S., , 1
834North, Eltham Park, Kent, England, UK1
835North Carolina State University, , 5
836Nosal, M., , 1
837Nosbüsch, H., , 2
838Nuccio's Nurseries, Altadena, California, USA146
839O'Rourke, H., Burnie, Tasmania, Australia35
840O'Shannassy, J., , 7
841Ogdon, B.J., , 6
842Ohita Prefecture, , 1
843Oldham, B.E., , 12
844Oleri, M. Mrs, , 1
845Olinda Nurseries, , 1
846Oliver & Simson Nurseries, , 1
847Olson, J., Fall Creek, Oregon, USA1
848Ono, K., , 3
849Ooshima, H., , 1
850Oosthoek, P.J.C. & Co, , 3
851Ostbo, E., Bellevue, Washington, USA17
852Ostler, , 1
853Ottolander, J. & Hooftman, , 2
854Ouden den H. & Son, , 3
855Oudin, Lisieux, France4
856Pacific Island Nursery, , 1
857Paelinck Bros, , 1
858Panhandle Nursery, , 1
859Parco Burcina, Pollone, Biella, Italy26
860Parker, , 1
861Parker Smith, Santa Monica, CA, USA1
862Parker, E.K., , 3
863Parks, J.B. (Joe), Dover, New Hampshire, USA18
864Parmenter, D., , 5
865Parsons, H.J., , 1
866Parsons, S.B. & Sons Co., Long Island, New York, USA6
867Patterson, C., , 1
868Paul, G., The Old Nurseries, Cheshunt, Hertfordshire, England7
869Paul, W. & Son, , 3
870Pearce, , 3
871Pedersen, A & A, Pedersen's nursery, Wayne, New Yersey, USA1
872Pedersen, Henning, , 1
873Pedigo, L., , 1
874Pellet, H., University of Minnesota Landscape Arboretum, USA7
875Pender, D. Jr,, , 2
876Pennington, R.W., , 5
877Pennington-Ramsden, Sir, , 1
878Pericat, A., , 29
879Perrott, E.B., , 1
880Perry, R.I. & Stilwell, M., , 1
881Peste, F., Shelton, Washington, USA18
882Peterson, N.C. & Stabler, D., , 1
883Petrick, C., , 4
884Petton, J.-F, , 1
885Phetteplace, Dr. Carl H, Leaburg, Oregon, USA19
886Philips, Kevin, , 1
887Phipps, H., Long Island, NY, USA9
888Pierce, Lawrence, Seattle, Washington, USA1
889Pike, R.B., , 1
890Pilkington, Mrs. E., , 4
891Pince, R.T., , 14
892Player, L. M., Fayetteville, North Carolina, USA4
893Potter, B.C., , 2
894Pratt, M.C., , 18
895Preil, W. & Ebbinghaus, R., , 2
896Preston, Mrs., , 1
897Price, G., , 1
898Pride, O.S., Butler, Pennsylvania, USA60
899Prizeman, G.J.N, , 1
900Pryor, R.L., , 2
901Pukeiti-Rhododendron Trust, , 5
902Pushepetappa Gardens, , 1
903Pynaert, E., , 3
904Quihou, F., , 1
905Ragan, W.A, , 9
906Ramsden, Sir John, Muncaster Castle, UK15
907Rannacher, K., , 1
908Rare Find Nursery, , 1
909Rasmussen, Mogens, Gedser, Denmark3
910Raustein, A.A., Holbrook, New York, USA8
911Read, F., , 1
912Reese, W.A., , 3
913Reich, W., , 22
914Reid, C., , 3
915Reid, G.A., , 22
916Reiley, H.E., , 7
917Research Station for Woody Nursery Crops, Boskoop, Netherlands6
918Reuthe, G. Ltd, Ightham, Kent, England29
919Reuthe, W.S., , 7
920Rhein, W.L., Mechanicsburg, Pennsylvania, USA21
921Rhodes, R.C., Gabriola Island, BC, Canada8
922Rhododendron Species Foundation, , 2
923Richards, C.W., , 1
924Richter, L. R., Dresden, Germany1
925Ring, G.W., , 15
926Ring, T.L., Bellaire, Ohio, USA25
927Rinz, J., Firma S. Rinz, Frankfurt a/d Main, Germany11
928Robeneck, H., Westerstede, Germany15
929Roberts, A.N., Corvallis, Oregon, USA1
930Robertson, W., Auburn, WA, USA3
931Robinson, M.L.A., Forest Row, East Sussex, England

  Robinson, M.L.A.
6
932Roehrs, J., , 2
933Rogers, Sevenoaks, Kent, UK1
934Rogers, W.H. & Son, , 4
935Rokujo, T., Tokyo, Japan11
936Rollisson & Sons, W., Springfield Nursery, Upper Tooting, London, England25
937Ronken, H, , 2
938Rose, F.J., , 4
939Rose, H.D., , 2
940Rose, J., , 6
941Rosenthal, J., Jamaica, NY, USA5
942Roslyn Nursery, , 7
943Rothschild, Edmund Leopold de, Southampton, UK111
944Rothschild, L. de, Founder of Exbury Gardens, UK

  Rothschild, L. de (1882-1942)
357
945Round, J., , 1
946Rouse, J.L., Toorak, Victoria, Australia20
947Royal Botanical Garden Edinburgh, , 3
948Royal Botanical Garden Kew, , 1
949Royal Botanical Gardens, Wakehurst, , 3
950Royal Horticultural Society, , 2
951Russell, , 1
952Russell, J.P.C., Fife, Scotland6
953Ruys, J.D., Moerheim Nursery, Dedemsvaart, Netherlands1
954Sablière, C. de la, , 3
955Sagemüller, W., Edewecht, Germany1
956Saint-Jalm, J.F., , 5
957Saitõ, T., , 1
958Saito, S., , 1
959Sander, C., , 8
960Sanders, D., , 7
961Sanders, George Merle, Roseburg, Oregon, USA6
962Sanders, Graham, Christchurch, New Zealand1
963Sanders, S & C, Bethesda, Maryland, USA1
964Sandwich Club, , 1
965Saperstein, S., , Australia3
966Sather, G & Mrs A., , 1
967Sauvage, , 1
968Savill Gardens, , 2
969Sawada, K., , 3
970Schamenek, J., , 1
971Schannen, H.A. (Hank) (owner of RareFind Nursery in Jackson NJ), Princeton, NJ, USA

  Schannen, H.A. (Hank) (owner of RareFind Nursery in Jackson NJ) (1938-2009)
2
972Schepens, M. G., , 1
973Schepens, P, Zaffelare, Belgium1
974Schick, P., , 5
975Schild, J.E., Hixson, Tennessee, USA6
976Schmalscheidt, W., , 3
977Schmick, H, , 1
978Schneider, F., , 13
979Scholz, J., , 4
980Schoneman, R., , 1
981Schröter, , 1
982Schram, B., , 4
983Schrijver, A. de, , 1
984Schroeder, H.R., , 19
985Schultz, C., Hanau, Germany10
986Schulz, C., , 7
987Schulz, M., , 2
988Schulz, O. (head-gardener, Royal Porcelain Factory), Berlin, Germany29
989Schumacher, F.W., , 2
990Schumacher, U., , 3
991Schäme, J, , 1
992Scott Arboretum, , 21
993Scott, R.L., , 2
994Scott, R.W., , 11
995Scrase-Dickins, C.R., , 1
996Seabrook, Cecil S., Tacoma, Washington, USA19
997Seghers, Fr, , 1
998Seidel, T.J., Dresden, Germany17
999Seidel, T.J.H., Dresden, Germany

  Seidel, T.J.H. (1833-1896)
6
1000Seidel, T.J.R., Dresden/Grüngräbchen, Germany

  Seidel, T.J.R. (1861-1918)
149
1001Seleger, R., Adliswil, Switzerland3
1002Sénéclause, L., , 1
1003Serbin, A.F., , 2
1004Serle, L., , 1
1005Settle, P.T., , 4
1006Shammarello, A.M, Euclid, Ohio, USA46
1007Shapiro, B. & M., , 28
1008Shaw, J., , 3
1009Shellenberger, Rick, Snohomish, WA, USA1
1010Sherwood Nursery Co., , 1
1011Short, H.A., , 2
1012Sifferman, Karl I., Seattle, Washington, USA3
1013Simmons, M. Mrs., , 1
1014Siskiyou Rare Plant Nursery, , 1
1015Skinner, H.T., , 6
1016Sligh, B., Lyttelton, New Zealand10
1017Slocock Nurseries, , 6
1018Slocock, O.C.A, , 1
1019Slocock, Walter C., Goldsworth Nursery, Woking, UK58
1020Slonecker, H.J., Milwaukie, Oregon, USA13
1021Slootjes, , 1
1022Smet, L. de, , 10
1023Smet-Duvivier. L. de, St. Amandsberg, Belgium6
1024Smith, , 8
1025Smith, A.L., , 1
1026Smith, A.W., Niagara Falls, Ontario, Canada70
1027Smith, B., Dromana, Victoria, Australia1
1028Smith, B.M., Brittenhill Nursery, Kent, WA, USA8
1029Smith, B.M. & Mossman, F.D., , 7
1030Smith, C & Son, , 1
1031Smith, C (Clint), Sumner, Washington, USA2
1032Smith, C.B., , 1
1033Smith, C.C. (Cecil), Newberg, Oregon, USA25
1034Smith, E. E., , 2
1035Smith, F. & A., , 1
1036Smith, Graham F., Taranaki, New Plymouth, New Zealand1
1037Smith, J.S., , 3
1038Smith, James & Sons, Darley Dale Nurseries, Matlock, Derbyshire, England, UK2
1039Smith, P., , 4
1040Smith, S., Gardener to R.B. Fox, Penjerrick, Cornwall, England5
1041Smith, Samuel, , 1
1042Smith, W. (gardener Earl of Liverpool), Kingston-upon-Thames, Surrey, England9
1043Smith, W.D., Spring Grove, Pennsylvania, USA85
1044Smitherman, R.O., Auburn, Alabama, USA2
1045Snell, G.L.S., Vireya Venue, Maleny, Queensland, Australia30
1046Soames, A.G., , 1
1047Soc. An. L. van Houttepère, , 1
1048Somers, J., , 1
1049Sommerville, E.A., , 11
1050Sonneville, J., , 1
1051Sorensen-Smith, L., , 2
1052Sorenson, S.E., , 2
1053Southerland, Stan B., Chapel Hill, NC, USA2
1054Spady, H.A., Honsuchachac Rhododendron Garden, Salem, Oregon, USA1
1055Spae, F., , 2
1056Spartanburg Nursery, , 1
1057Staal, H., , 1
1058Stahnke, , 1
1059Stahnke, O., Sassenburg, Germany11
1060Stair, Lord, Lochinch Castle, Stranraer, Scotland2
1061Standish & Noble, Bagshot, Surrey, England80
1062Standish, J., Bagshot, Surrey, England25
1063Stanley Hall, , 1
1064Stanton, D.B., Wollongong, New South Wales, Australia12
1065Stanton, E.N., , 9
1066Starling, , 5
1067Stavordale, Lord, , 1
1068Stead, E.F., , 19
1069Steele, Captain Richard, M., , 4
1070Stelzner, , 2
1071Stephens, J.F. Mrs & Mr, , 4
1072Stephenson Clarke, N., , 1
1073Stevenson, J.B., Ascot, Berkshire, England36
1074Stevenson, Mrs. R.M., , 4
1075Stewart, D. & Son, , 5
1076Stewart, Robert, Springfield, Virginia, USA9
1077Steyaert, A., , 21
1078Stiborek, Z., , 3
1079Stipe, W.A., Glynneden Garden, Greenbank, Washington, USA

  Stipe, W.A.
14
1080Stirling-Maxwell, Sir John, , 4
1081Stockman M. & H., , 3
1082Stockman, M., Port Angeles, Washington, USA116
1083Stokes, W.E., , 19
1084Strauss, R., , 1
1085Straver, , 1
1086Streck, W., , 4
1087Street, F.J., Heathermead Nursery, Woking, Surrey, England6
1088Strybing Arboretum, , 2
1089Stöckman, E.A., Baumschule, Bad-Zwischenahn-Rostrup, Germany11
1090Sullivan, N., Burnie, Tasmania, Australia11
1091Sullivan, P., , 25
1092Sumner, M.H. & Mrs. F, San Francisco, California, USA5
1093Sunningdale Nursery, , 30
1094Swain, G.S., Researh Station, Kentville, Nova Scotia, Canada4
1095Swan, I.G. & Swan, S.N., Tawa Glen Nursery, Lepperton, New Plymouth, New Zealand1
1096Swanson, H., , 1
1097Swarthmore College, , 7
1098Swaythling, Lord, Bridley Manor, Worplesdon, Surrey, England5
1099Swenson, G., , 1
1100Swenson, W.J., Eugene, Oregon, USA3
1101Søndergaard, V., , 1
1102Tabata, Y., , 1
1103Takashima, T., , 1
1104Tanggard, M., , 3
1105Tatum, T., Portland, Oregon, USA2
1106Taylor & Sangster, Melbourne, Australia1
1107Taylor, G., , 9
1108Taylor, G.H., , 4
1109Teese A.J., Monbulk, Voctoria, Australia5
1110Terai, K, , 2
1111Thacker, T.C., , 14
1112The Bovees Nursery, , 4
1113The High Beeches Gardens Conservation Trust, , 1
1114The Netherlands, hybridizer not registered, , 19
1115Thompson, J.G., , 1
1116Thompson, London, , 2
1117Thompson, R. W, Waldport, Oregon, USA2
1118Thompson, W. & M., , 4
1119Thompson’s Nursery, Waldport, Oregon, USA15
1120Thornton, J.T., , 6
1121Thornton, R.E., , 1
1122Ticknor, R.L., , 4
1123Tietjens, M., , 2
1124Todd, Jr, J.R., , 2
1125Todman, , 3
1126Tolstead, W.L., Davis and Elkins College, Elkins, WV, USA28
1127Topsvoort Nursery, , 1
1128Towe, L.C., , 4
1129Towe, L.C. & Anastos, N., , 3
1130Townhill Park Gardens, , 1
1131Transplant Nursery, , 3
1132Trautmann, C., Mowbray Gardens, Amelia, Ohio, USA7
1133Trayling, E.J., , 1
1134Tremayne, J., , 1
1135Trembath, M.L., , 1
1136Trillon, , 3
1137Truffaut, A., , 4
1138Tuomala, C., Fort Bragg, CA, USA1
1139Tyerman, , 1
1140Tyson, Ray, , 1
1141UK, No hybridizer registered, , 50
1142University of Canterbury, , 18
1143University of Minnesota, , 4
1144Uosukainen, Marjatta, Dr. Mrs., Laukaa, Finland18
1145USA, , 24
1146USDA, Department of Agriculture, Beltsville, Maryland, USA42
1147Vaartnou, H., , 20
1148Vaerlen, B., Camp Meeker, California, USA1
1149Valder, P.G., , 1
1150van Acker, P.B., , 4
1151Van de Ven K., Olinda, Victoria, Australia57
1152Van de Ven, H., , 7
1153van den Akker, D.A., , 1
1154Van der Cruyssen, E., Gentbrugge, Belgium15
1155Van der Meer Brothers, , 1
1156van der Meulen, G., , 1
1157van Geersdaele, G., , 1
1158van Geert, A., , 17
1159van Geert, C., , 21
1160van Geert, J., , 14
1161van Gelderen, D.M., , 2
1162Van Gele, J.C. & Son, , 4
1163Van Hecke, A., , 9
1164van Herzeele Nurseries, , 5
1165Van Houtte, L. B. (Louis Benoit), Gentbrugge, Belgium

  Van Houtte, L. B. (Louis Benoit) (1810-1876)
136
1166Van Lancker, M., Melle - Reseach Station for Ornamental Plant Growing, Belgium5
1167van Loo, C., , 1
1168van Loon, R., , 2
1169van Nes C. B . & Sons, Boskoop, Netherlands35
1170Van Nes, Adriaan, Boskoop, Netherlands6
1171Van Nes, C.B., , 10
1172van Nes, P., , 6
1173van Noordt, G., , 3
1174van Noordt, P. & Sons, , 3
1175van Oost, G., , 1
1176Van Oost, H, , 2
1177van Tol, J.C., , 2
1178van Veen, T. (includes Sr. & Junior), Portland, Oregon, USA6
1179van Vliet, A., , 1
1180van Wilgen, , 2
1181Vander Wegen, B.A., , 1
1182Varnadoe, A.C., , 4
1183Vea, J.G., , 1
1184VEG Saatzucht Zierplanzen Erfurt, , 7
1185Veitch & Son, J., Royal Exotic Nurseries, Chelsea, London, England

  Veitch & Son, J. (1869-1914)
67
1186Veitch & Sons, R., Exeter, Devon, England

  Veitch & Sons, R. (1823-1885)
40
1187Veitch, R.T., , 1
1188Verboom, K.W., , 1
1189Verhaeghe, R. & Sons, , 2
1190Verleeuwen, J., , 2
1191Vermeulen & Sons, J., , 5
1192Verschaffelt, A. (Alexander), Ghent, Belgium81
1193Verschaffelt, J., Ghent, Belgium18
1194Verschaffelt, L, Royghem (near Ghent), Belgium8
1195Vervaene, C., , 1
1196Vervaene, D., Ghent, Belgium17
1197Vervaene, J., Ledeberg, near Ghent, Belgium28
1198Vineland Station, Niagara Falls, Ontario, Canada1
1199Vines,R.C., Amelia Island, Florida, USA70
1200Vinson, B., Sumner, WA, USA1
1201Viraghavan, M.S., , 1
1202Vireya Venue, , 8
1203von Martin, V., Rothenburg/Oberlausitz, Germany7
1204Vossberg, P.D., Westbury Rose Co., Long Island, New York, USA7
1205Vuyk van Nes, , 18
1206Vuyk, P., , 1
1207Vuyk, T. & Son, , 2
1208Vuylsteke, C., , 26
1209Wada, K., Hakonea Nursery, Numazu, Japan35
1210Waddington, C.R.W., , 5
1211Waelbrouck, , 1
1212Waghorn, F.R., , 5
1213Wagner, D., , 2
1214Walbrecht, , 2
1215Waldman, P.M., , 3
1216Wallace, , 2
1217Wallace, Don S., McKinleyville, California, USA6
1218Walter Allan Nursery, , 4
1219Walther, C.J.H., , 10
1220Walton's Nurseries, , 2
1221Ward, R.W., , 2
1222Warner's Nurseries, , 1
1223Waterer (Bagshot), Surrey, England203
1224Waterer John, Sons & Crisp, Bagshot, Surrey, UK7
1225Waterer, A., Woking, Surrey, UK10
1226Waterer, H. (Knaphill), Woking, Surrey (Knaphill), UK251
1227Watson, E.M. Mrs. (Elsie), Kirkland, WA, USA

  Watson, E.M. Mrs. (Elsie)
42
1228Watson, W., , 1
1229Watters, L., , 1
1230Waugh, T., , 1
1231Weagle, J.K., , 4
1232Weber, Edwin O., Seattle, Washington, USA2
1233Weeks, C., Westgate Garden Nursery, Eureka, California, USA28
1234Weesjes, E. Mrs, , 3
1235Weight, , 2
1236Weiskittel, H.C., , 2
1237Wells Nursery, , 1
1238Welvaert, M., , 1
1239Wemken, A., , 3
1240Westfall, Q.R., , 2
1241Weston Nurseries, , 13
1242Wezelenburg & Son, , 6
1243Wheeldon, T.F., Richmond, Virginia, USA2
1244Whitaker W.J., , 4
1245White, G., Kingham, Oxfordshire, England1
1246White, G.H., , 5
1247White, H., Sunningdale, UK5
1248White, Richard H., , 1
1249Whitley & Osborn, , 8
1250Whitman, M.J., Wall, NJ, USA29
1251Whitman, M.V., , 1
1252Whitney & Osborn, , 1
1253Whitney, William E., Brinnon, Washington, USA74
1254Wieting, J., Baumschulen, Gisselhorst/Westerstede, Germany8
1255Wildfong, M., , 8
1256Wilding, E. H., Stoke Poges, Buckinghamshire, UK3
1257Wilkes, W., , 1
1258Wille, C.J. & Co, , 6
1259Williams, A.M., , 2
1260Williams, B. S., , 4
1261Williams, C., , 3
1262Williams, C. & Michael, C., , 3
1263Williams, F.J., , 4
1264Williams, John Charles, Caerhays, Cornwall, England18
1265Williams, Percival D., St Keverne, Cornwall, England6
1266Winberg, John, D., , 5
1267Wise, H., , 1
1268Wiseman, P., , 3
1269Wister, J.C., Swarthmore, PA, USA6
1270Withers, R.M., , 2
1271Witherwick, G.T., , 8
1272Witt, , 3
1273Wojnar, , 1
1274Wolin, Miriam L., East Brunswick, NJ, USA1
1275Wood, D., , 1
1276Woodard, G. (George) (superintendent Phipps Estate), Westbury, NY, USA

  Woodard, G. (George) (superintendent Phipps Estate)
5
1277Workman, Y., Cape Coral, Florida, USA8
1278Wright, A. A., , 3
1279Wright, A. Sr & Jr, , 1
1280Wright, A.O., Canby, Oregon, USA10
1281Wright, H.R., Courtenay, British Columbia, Canada9
1282Wuyts, O.F., , 2
1283Wyatt, , 1
1284Wyman, R.M., , 1
1285Wyrens, R.G., , 3
1286Wüstemeyer, W., , 2
1287Yamamoto, K, , 1
1288Yamamoto, Y., , 1
1289Yamanoi, Y., , 1
1290Yashiro, M., , 1
1291Yates, H.R., Frostburg, Maryland,, USA24
1292Yates, M. Mrs, , 1
1293Yavorsky, L., Freehold, New Jersey, USA19
1294Yeates, J.S., , 24
1295Yokohama Nursery, , 2
1296Young, M., , 2
1297Younger Botanic Garden, , 1
1298Zahradnik, , 1
1299Zhang, Chang Qin, Kunming, China

  Zhang, Chang Qin
6
1300Šesták, J., , 2
 
Warning: mysql_fetch_array(): supplied argument is not a valid MySQL result resource in /home/3/c/f/4608/4608/public_html/hybridizers/index.php on line 402
Statistics
Listed Hybrids / cultivars2037656.605 %
Synonyms1127
Selections/clones707
Groups (formerly grex)661
Unregistered hybrids What?
Unregistered Hybrids

This category involves:
  • all named hybrids that have no registration in the IRRC, ICRA or JARS
  • all unnamed crosses (like: 'yakushimanum x bureavii')

1119
Listed Hybrids + hybridizer-details1486272.945 %
Listed Hybrids + picture417620.495 %

Estimated total number of hybrids = 36.000

Last 2 hybrid pictures added to hirsutum database:


R. 'Proteo-pron' (Thompson’s Nursery Waldport, Oregon USA)

Photo by: Harold E. Greer
Location: Greer Gardens, Eugene, USA 11 May, 2008

R. 'Odoratum' (Thompson, London , 1869)

Photo by: Harold E. Greer
Location: Greer Gardens, Eugene, USA 15 May, 1988


Last species picture added to hirsutum database
R. acrophilum

Photo by:
Location:


Photo Everard Daniel, Sherwood Garden, UK


Photo Tijs Huisman, Round Bald, Roan Mountain
North Carolina USA, June 19 2006


Photo Everard Daniel, Sheffield Park gardens, Sussex (National Trust) , UK
Rhododendron G.A. Sims, May 30 2004


Photo Yves Tuset, Leonardslee , UK
Rhododendron 'Smithii Group' with wallabies, April 2003
_____________________________________________________________________________________________________________________________________
Hirsutum.info     Project started 03 June 2009