Kalimeris incisa 'Madiva'

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Japanese aster 'Madiva'

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Japanese aster 'Madiva' RHS
Herbaceous Perennial
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A clump-forming perennial to about 60cm producing a mound of foliage topped with very pale purple daisies with gold centres, borne over a long period from mid-summer to mid-autumn

Position

Full sun, Partial shade

Soil Types

Clay, Loam, Sand, Chalk

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

Clay Loam Sand Chalk
Moisture
Moist but well–drained
pH
Acid or Alkaline or Neutral

Position

Full sun Partial shade
Aspect
South–facing or West–facing or East–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
Clump forming
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 moderately fertile, moist but well-drained soil in full sun or light shade. See aster cultivation

Propagation

Propagate by division in spring or root softwood basal cuttings in spring; division can be carried out every third year to maintain vigour

Suggested planting locations and garden types

  • Cottage and informal garden
  • Prairie planting
  • City and courtyard gardens
  • Coastal
  • Patio and container plants
  • Cut flowers
  • Flower borders and beds

Pruning

Tips can be pinced out to encourage bushy compact growth. Cut down flowered stems to ground level once flowering has finished or leave the seedheads and stems in place for wildlife and winter interest

Pests

May be susceptible to leaf and bud eelworms, slugs and snails

Diseases

Asters may be susceptible to Verticillium wilt, Powdery mildews and grey moulds