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Lewisia cotyledon
  • RHS AGM

Siskiyou lewisia

L. cotyledon is a rosette-forming evergreen perennial with fleshy, strap-shaped leaves. Abundant, funnel-shaped purplish-pink, orange, yellow or white flowers 1.5-2.5cm in width are borne in open sprays on stems to 20cm

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Size
Ultimate height
0.1–0.5 metres
Time to ultimate height
2–5 years
Ultimate spread
0.1–0.5 metres
Growing conditions
Loam
Sand
Moisture
Well–drained
pH
Acid, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Orange Pink White Yellow Green
Summer Orange Pink White Yellow Green
Autumn Green
Winter Green
Position
  • Partial shade
Aspect

North–facing or South–facing or West–facing or East–facing

Exposure
Exposed or Sheltered
Hardiness
H4
Botanical details
Family
Montiaceae
Native to the UK
No
Foliage
Evergreen
Habit
Tufted
Genus

Lewisia can be herbaceous or evergreen perennials forming rosettes of fleshy leaves, with panicles of open funnel-shaped flowers in a wide range of colours in spring and summer

Name status

Correct

Plant range
USA (California)

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How to grow

Cultivation

Grow in moderately fertile, neutral to acid, well-drained soil in full sun or light shade. Suitable for the alpine house, rock garden, or in the crevices of a retaining wall. Protect from winter wet

Propagation

Propagate by seed or offsets

Suggested planting locations and garden types
  • Patio and container plants
  • Rock garden
  • Gravel garden
Pruning

No pruning required

Pests

May be attacked by aphids, slugs and snails

Diseases

May be subject to neck rots in wet conditions

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