Alyssum saxatile 'Summit'
An evergreen, mound-forming perennial to 20cm tall, with rosetted, grey-green leaves. In spring it produces a profusion of yellow flowers held in dense clusters above the foliage. Drought tolerant once established, and an RHS Plant for Pollinators
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Size
Ultimate height
0.1–0.5 metresTime to ultimate height
2–5 yearsUltimate spread
0.1–0.5 metresGrowing conditions
Moisture
Well–drainedpH
Acid, Alkaline, NeutralColour & scent
| Stem | Flower | Foliage | Fruit | |
| Spring | Yellow | Green | ||
|---|---|---|---|---|
| Summer | Green | |||
| Autumn | Green | |||
| Winter | Green |
Position
- Full sun
Aspect
South–facing or West–facing or East–facing
Exposure
ShelteredDrought resistance
Yes Hardiness
H5Botanical details
- Family
- Brassicaceae
- Native to the UK
- No
- Foliage
- Evergreen
- Habit
- Bushy
- Genus
Alyssum can be annuals or evergreen perennials or sub-shrubs, with simple leaves and short racemes of small, 4-petalled yellow or white flowers in early summer
- Name status
Accepted
How to grow
Cultivation
Grow in moderately fertile, well-drained soil in full sun
Propagation
Propagate by sowing seed in containers in a cold frame in autumn, or by softwood cuttings in early summer
Suggested planting locations and garden types
- Cottage and informal garden
- Rock garden
- Wildlife gardens
- Banks and slopes
- Garden edging
Pruning
Trim plants back by a half after flowering to maintain a compact shape
Pests
May be susceptible to aphids
Diseases
Generally disease-free
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