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The common rockrose is a popular and easy-care flowering plant for stone and gravel gardens, for greening wall crowns and for planting beds. The tirelessly blooming flower shows its true splendor only with the right care.
Profile of common rockrose:
Scientific name: Helianthemum nummularium
Plant family: rockrose / rock-rose / rock rose family (Cistaceae)
Other names: common rock-rose
Planting time: autumn
Flowering period: May to August
Location: sunny
Soil quality: loamy, calcipholous, low in nutrients
These information are for temperate climate!
Use in: roof greening, planters, rock garden, potted garden
Winter hardiness: hardy, USDA Plant Hardiness Zones: 6 (-23 °C / -5 °F)
Bee and insect friendly: Yes
Plant characteristics and classification of common rockrose
Plant order, origin and occurrence of common rockrose
Common rockroses are subshrubs, the shoots of which wood on the bottom. Every year new, herbaceous shoots develop from them. They belong to the rockrose family (Cistaceae).
Helianthemum nummularium is native to the Caucasus, Turkey and almost all of Europe except Iceland and Norway. As a location, it prefers sunny dry slopes, heaths, forest edges and rocks.
Characteristics of common rockrose
Plant
Common rock roses stay low and, depending on the species and variety, reach heights of between 15 and 20 centimeters (6 to 8 in).
Leaves
Their evergreen, egg-shaped leaves can be silvery-gray or dark green.
Blossoms
They bloom in yellow, white, pink and brown-red tones from June to August.
Common rockrose – cultivation and care
Location
Common rockroses love a sunny and warm location.
Soil
The soil should be well permeable to water, moderately dry and calcareous
Propagation
Cut 5 to 6 centimeters (2 in) long cuttings in summer, place in potting compost and keep the soil moist.
Care
Protection from the winter sun may be necessary in case of long ground frost. After flowering, prune plants vigorously, then they remain more compact.
Wintering
Common rockrose is hardy down to -23 °C / -5 °F.
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