Rhododendron 'EDELWEISS' rhododendron
size/type
low or groundcovering,low or groundcovering
usual height
0,4-0,8m
usual width
1-1,5m
leaves
evergreen broadleaf
colour of leaves
flowers
showy
colour of flowers
blooming time
May-May
location
full sun to shade
USDA zone (lowest)
7 (down to -23°C)
winter protection
for zone 5+6
for zone 7
categorized
Rhododendrons are reliable, beautifully flowering, evergreen shrubs of variable origin: S.W. China, Himalayas, Northern America, and even Europe. The original species were hybridized several times for better performance so in the 1950´s there were more than 10,000 cultivars registered, and the number keeps increasing.
Description of the plant:
Edelweiss is a Japanese rhododendron that belongs to the Yakushimanum group. These were crossed with the species originally found on Yakushima Island, Japan. It bears rich trusses of large, bell-shaped flowers that open from clear pink buds to only slightly pinkish white flowers with beautifully frilled margins. Evergreen leaves are elongated, quite large, dull green, with hairy underneath. Its further advantage is the suitability for insolate locations. It grows slowly, forming a dense and compact bush only about 60-80 cm tall and about twice as wide in full maturity. This makes it an excellent solution for even a small garden. For richer flowering and growth dead-head where possible. Rhododendrons are low-maintenance shrubs that will perform superbly provided you plant them well. The roots are shallow, spreading to sides in search for nutrients. Never plant them too deep. The soil has to be acidic (pH 4.5-5.5), rich in humus, cool and always moist. Ideal soil mixture is peat with lime-free, light garden soil topped with leaf-mould. Fertilizing is not recommended, however, you can always use a special flower encourager. Fully hardy to about -24°C (USDA zone 6), possibly more.
Last update: 05-05-2011
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GLOSSARY
- STANDARD QUALITY - Plants of this group are 1st class quality with number of branches and overall density adequate to their size and age, considering they were container grown.
- DE LUXE QUALITY - This label guarantees a luxurious quality of manually selected plants that, compared to their height and age, are exceptionally dense and beautiful.
- EXTRA - These plants are usually mature and bigger specimens with exceptional overall appearance.
- STANDARD (as described in the plant form) means a tree with a trunk of 190-210 cm and a crown at the top, unless specified differently. The commercial size for trees is their girth measured in the height of 1m from ground.
- HOBBY - These plants are of the same quality as our standard-quality plants but younger and therefore cheaper.
- SHRUB - a woody plant with branches growing bushy from the ground level.
- HALF-STANDARD or MINI-STANDARD - a small tree with shorter trunk, its size is usually specified.
- FEATHERED - These are trees with branches growing already from the base of the trunk and up along the stem.
- GRASSES and PERENNIALS - Sizes given usually read the diameter of the pot or the clump, as specified.
