Jovibarba allionii
Houseleek
Also known as Sempervivum allionii
- Height × spread
- 0.1m × 0.7m
- Position
- Full sun
- Hardiness
- Colder than -20C (RHS H7)
- Flowers
- Summer
Availability
Please ask in store about availability
Many plants are seasonal. Call 01234 567890 to check current stock.
About this plant
This is closely related to the houseleek (Sempervivum). It makes tight, round rosettes of fleshy, fat, light-green leaves with pointed tips. These are tightly incurved round the centre of the rosette and then, gradually, open out as the rosette fattens up. The underside of some of the uplifted leaves has slight rosy tips. Each year some of the rosettes should produce yellow flowers. Once it has flowered, the rosette dies.
- Flower colour
- Yellow
- Foliage colour
- Green
- Variegated
- No
- Scent
- No
- Shape
- Prostrate
- Height
- 0.1m
- Spread
- 0.7m
- Spread in 10 years
- 0.5m
- Season of interest
- Summer, Winter
- Flowers in
- Summer
- Evergreen
- Evergreen
- Garden style
- Winter garden, Rock garden
- Sun or shade
- Likes full sun
- Soil type
- Gravelly soil, Poor soil
- Soil pH
- All types
- Drainage
- Well drained soil, Dry soil, Drought resistant
- Hardiness
- Colder than -20C (RHS H7)
- Borders & containers
- Borders and containers
- Hazards
- No
Spring
Spring-Autumn · Outdoors
Water in dry periods
Established plants in the ground can cope with 7-10 days of dryness, and shrubs often manage 2 to 3 weeks. Water one section of the garden thoroughly each day rather than a little everywhere. Check plants in pots more often, especially in hot weather.
Spring - early-mid · Planting
Divide when too large
The plant can be divided if it becomes too large or another plant is required. This may involve physically dividing the clump in two, removing offsets or small bulbs or dividing rhizomes. The new plants can be grown in pots or planted in the ground.
Summer
Summer · Planting
Prune after flowering
When the plant has finished flowering, remove old leaves.