Common rock-rose
Helianthemum nummularium
Common rock-rose is a perennial for edging, groundcover, suited to full sun and loam, sandy soil or chalk, flowering May, Jun, Jul.
| Type | Perennial |
|---|---|
| Mature height | 20 cm |
| Spread | 45 cm |
| Aspect | full sun |
| Foliage | Evergreen |
| Hardiness | USDA 5b-8b, RHS H5 |
| Pollinator-friendly | Yes |
| Pet-safe | Not confirmed |
Where to use it in a border
At around 20 cm, it sits best along the front edge, where a low, spreading habit reads best. Give it about 45 cm of room to spread, roughly 2 to the metre when planted in a drift. It is hardy across USDA zones 5b to 8b and rated H5 by the RHS, so check it suits your area before planting.
It appears in our lists of full sun, sandy soil, chalk soil, evergreen plants, pollinator-friendly plants.
Border Builder uses Common rock-rose's height, spread, soil, bloom months and companions to place it in a full border plan for your own conditions, on iPhone and iPad.
Flowering through the year
Worth knowing
- Evergreen, so it keeps the border furnished through winter.
- Its flowers are valued by bees and other pollinators.
Good companions
Plants that share its conditions and style, chosen to complement its place in the border:
- Black Daleato edge in front
- Chihuahuan Sagefor height behind it
- Chocolate Flowerto edge in front
- Chuparosafor height behind it
- Coral Aloeto edge in front
- Creosote Bushfor height behind it