| Scientific Name: | Helianthemum nummularium |
| Common Name: | rock rose |
| Family Name: | Cistaceae |
| Origin: | Europe |
| Hardiness Zone: | Zone 5: (-29 to -23 °C) |
| Plant Type: | Herbaceous perennial |
| Mature Size: | 0.2 - 0.4m x 0.3 - 0.6m (height x width) |
| Habit: | Spreading |
| Form: | Creeping / Mat-like |
| Texture: | Medium - fine |
| Landscape Uses: | Ground cover, Mixed shrub border, Rock garden, Summer interest |
| Exposure: | Full sun |
| Soil or Media: | Rocky or gravelly or dry, Well-drained |
| Leaves: | Simple, Opposite, Soft flexible, Pubescent, Elliptic, Oblong, Ovate, Entire |
| Flowers: | Cyme, White, Yellow, Pink, Red, May-Jun-Jul |
| Fruit: | Capsule, Brown, Jul-Aug-Sep |
| Key ID Features: | |
| An evergreen trailing plant; leaves opposite, most lanceolate-elliptic, 2-4cm long x 5-9mm wide, gray-green, pubescent; flowers saucer-shaped in loose terminal clusters, bright white-yellow to pink-red, stamens bright orange and in tight cluster that is sensitive to touch (spread outwards to reveal the tall stigma in the middle). | |