Kalimeris incisa 'Alba'

RHS Plant Profile

Japanese aster 'Alba'

RHS / Joanna Kossak

Herbaceous Perennial

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A clump-forming perennial to around 60cm tall. Its leafy, branching stems aretopped with sprays of white, daisy-like flowerheads with golden-yellow centres from summer into autumn

Position

Full sun

Soil Types

Chalk, Loam, Sand

Max Height

0.5-1 metres

Max Spread

0.1-0.5 metres

Size

Time to Maturity: 2–5 years
Max Spread: 0.1-0.5 metres
Max Height: 0.5-1 metres

Growing Conditions

Chalk Loam Sand

Moisture: Moist but well–drained
pH: Acid or Alkaline or Neutral

Position

Full sun

Aspect: South–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): H7

Colour & Scent

Season	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family: Asteraceae
Native to GB/Ireland: No
Foliage: Deciduous
Habit: Bushy
Genus: Kalimeris are deciduous perennials with smooth, narrow, rounded, toothed or lobed leaves. The daisy-like flowers have white, pink or purple ray florets and yellow centres, and are carried singly or in flat-topped clusters
Name Status: Unresolved

How to Grow

Cultivation

Grow in moist but well-drained, fertile soil in full sun

Propagation

Propagate by division

Suggested planting locations and garden types

Prairie planting
City and courtyard gardens
Cottage and informal garden
Cut flowers
Flower borders and beds

Pruning

Cut down to ground level once flowering has finished

Pests

Generally pest-free

Diseases

May be susceptible to powdery mildews