About
Helianthemum 'Amabile Plenum' is a compact, spreading evergreen shrub that reaches approximately 30cm in height. It features dense, linear leaves that are dark green in color. In late spring and early summer, this plant produces double flowers that are scarlet red with orange centers. If pruned after the initial flowering, it can yield a second wave of blooms in late summer. This established variety is well-suited for use as ground cover.
About the genus
Helianthemum consists of evergreen shrubs that can be bushy or spread out. They feature small, paired leaves and produce saucer-shaped flowers that appear in short racemes during the spring and early summer.
Growing conditions
- Sunlight
- Full sun
- Soil type
- Chalk, Clay, Loam, Sand
- Soil pH
- Alkaline, Neutral
- Soil moisture
- Well-drained
- Aspect
- East-facing, South-facing, West-facing
- Exposure
- Exposed, Sheltered
- UK hardiness
- H4
Plant details
- Plant type
- Alpine Rockery, Shrubs
- Habit
- Bushy
- Foliage
- Evergreen
- Height
- 0.1-0.5 metres
- Spread
- 0.1-0.5 metres
- Time to full height
- 2-5 years
- Suggested uses
- City and courtyard gardens, Cottage and informal garden, Gravel garden, Patio and container plants, Rock garden
Care notes
- Cultivation
- Grow in fertile, neutral to alkaline, moist but well-drained soil in full sun. Suitable for rock garden or the front of a border, or as a groundcover on a sunny bank This plant was included in the RHS Helianthemum (rock rose) trial 2024-2026
- Pruning
- See pruning group 10, after flowering
- Propagation
- Propagate by softwood cuttings in late spring or early summer
- Pest resistance
- Generally pest-free
- Disease resistance
- May be susceptible to honey fungus in gardens where it is present but insufficient data to determine degree of susceptibility