Rhododendron Hybrids / cultivars

Gallery name starting with: 12ABCDEFGHIJKLMNOPQRSTUVWXYZHOME to hirsutum.info

Rhododendron 'Summer Jewel'

Extra info:Named by J.C. Wister
Hybridiser:Swarthmore College, 1953 (see more plants of this hybridizer)
Status:IRRC registered.
The figures listed here are averages.

The exact location (altitude, sunlight, soil, climate) can influence growth considerably
in 10 years
Bloom time:lateFlower:unknown
H0 = 0 C (32 F)
H1 = -7 C (20 F)
H2 = -12 C (10 F)
H3 = -15 C (5 F)
H4 = -18 C (0 F)
H5 = -24 C (-10 F)

In 'Your Garden' you can administrate
your rhododendrons.

To try/see this go 'Home' (top-right).
on hirstum.info: 1
R. Summer Jewel per country:
(could be a clue for heat/cold-tolerance)

United States : 1

'Alandale'   Click to see more information XR. fortunei ssp discolor   Click to see more information

R. maximum   Click to see more information

xR. fortunei ssp discolor   Click to see more information

Rhododendron 'Summer Jewel' photos

Photo byJim Willhite
LocationTyler Arboretum, Media, PA, USA
Date26 June, 2005
See high-resolution picture

Send your own information or pictures

Rhododendron cultivars   Hirsutum.info     Project started 03 June 2009