Helianthemum 'STARNTALER' rock rose
size/type
low or groundcovering,low perennial
usual height
0,1-0,2m
usual width
0,3-0,5m
leaves
evergreen broadleaf
colour of leaves
flowers
showy
colour of flowers
blooming time
June-July
location
full sun
soil type
neutral to alkaline
soil moisture requirements
dry and sharply drained (xeriscape)
USDA zone (lowest)
5 (down to -29°C)
winter protection
for zone 5+6
for zone 7
categorized
Description of the plant:
Rock roses are popular ground-covering perennials available in many attractive colours. Sterntaler is a profusely flowering variety producing vivid yellow flowers on a compact mound. Flowers open from nodding buds for about 4 weeks, beginning in late May. In summer it sporadically re-blooms offering a few flowers on the plant every now and then. It was named after a fairy-tale by the Grimm Brothers ‘Star Money’.Once the main flowering season has finished (late June) reduce the size of the whole plant to a half by trimming. It will encourage growth of new foliage and the plant will look tidy and bushy until the next spring. Rock rose is a low, ground-covering or mound-forming semi-woody perennial with evergreen foliage. The short and linear leaves are rosemary-like, medium green. Pruning may be followed by a dose of a good fertilizer if you want a bushy and lush looking evergreen cushion.
Rock roses are low, spreading plants, ideal for rockeries or dry slopes that grow well in common garden soil, too, provided it is well-drained. They love full sun and neutral to slightly alkaline soil that must not remain wet. Hardy to about -29°C (USDA zone 5).
Last update 20-10-2022
