Lewisia columbiana 'Starburst'

RHS Plant Profile

lewisia 'Starburst'

RHS

Alpine Rockery

A species of succulent, evergreen alpine perennial to around 15cm in height, with long, narrow, dark green leaves with slightly scalloped edges which grow from the base of the plant. Golden yellow buds open to golden yellow flowers with white edges, appearing on multi-branched stems from April through to June, sometimes followed by a second flush of flowers in late summer to early autumn

Position

Full sun, Partial shade

Soil Types

Loam, Sand

Max Height

0.1-0.5 metres

Max Spread

0.1-0.5 metres

Size

Time to Maturity: 2–5 years
Max Spread: 0.1-0.5 metres
Max Height: 0.1-0.5 metres

Growing Conditions

Loam Sand

Moisture: Well–drained
pH: Acid or Neutral

Position

Full sun Partial shade

Aspect: East–facing or West–facing
Exposure: Exposed or Sheltered
Hardiness

Hardiness Ratings

All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets

H1A: under glass all year (>15C)
H1B: can be grown outside in the summer (10 - 15)
H1C: can be grown outside in the summer (5 - 10)
H2: tolerant of low temperatures, but not surviving being frozen (1 to 5)
H3: hardy in coastal and relatively mild parts of the UK (-5 to 1)
H4: hardy through most of the UK (-10 to -5)
H5: hardy in most places throughout the UK even in severe winters (-15 to -10)
H6: hardy in all of UK and northern Europe (-20 to -15)
H7: hardy in the severest European continental climates (< -20): H5

Colour & Scent

Season	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family: Montiaceae
Native to GB/Ireland: No
Foliage: Evergreen
Habit: Matforming
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: Unresolved

How to Grow

Cultivation

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

Propagation

Propagate by offsets

Suggested planting locations and garden types

City and courtyard gardens
Cottage and informal garden
Gravel garden
Patio and container plants
Rock garden

Pruning

No pruning required

Pests

May be susceptible to aphids, slugs and snails

Diseases

May be susceptible to neck rots in wet conditions