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Herbaceous Perennial

Stokesia laevis 'Omega Skyrocket'

Stokes' aster 'Omega Skyrocket'

'Omega Skyrocket' is an evergreen perennial forming a basal rosette of leaves up to 20cm long, with prominent white midribs. Upright stems with smaller leaves carry large, cornflower-like flowerheads up to 10cm across, light purple florets with a silvery centre, from mid summer to early autumn

Synonyms

Stokesia laevis 'Skyrocket'

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Ultimate height

0.5–1 metres

Time to ultimate height

2–5 years

Ultimate spread

0.1–0.5 metres

Loam

Sand

Moisture

Moist but well–drained

pH

Acid

	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Full sun

Aspect

South–facing

Exposure

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)

Botanical details

Family: Asteraceae
Native to GB / Ireland: No
Foliage: Evergreen
Habit: Bushy
Genus: Stokesia are perennials producing evergreen, basal rosettes. The colourful, cornflower-like flowers are long lasting and good for cutting
Name status: Accepted

How to grow

Cultivation

Needs a light, fertile, moist but well-drained, acid soil in full sun. Liable to rot in damp, wet soils. Usually needs staking (see staking perennials)

Propagation

Propagate by seed sown in autumn, by division in spring, or root cuttings in winter

Suggested planting locations and garden types

Cottage and informal garden
Wildlife gardens
Cut flowers
Flower borders and beds

Pruning

Deadhead to prolong flowering

Pests

Generally pest-free

Diseases

Generally disease-free

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