Callistephus chinensis

RHS Plant Profile
China aster
China aster RHS

Other common names

annual aster

Plants for pollinators
Annual Biennial

Varies in height from 20 to 70cm, and width from 25 to 45cm. Chrysanthemum-like flowers can be single, semi double or double, 7 to 12cm across and held on branching stems over a long period from late summer into autumn. Colours include light and dark purple, light and dark pink, red, yellow and white

Position

Full sun

Soil Types

Chalk, Clay, Loam, Sand

Max Height

0.5-1 metres

Max Spread

0.1-0.5 metres

Size

Time to Maturity
1 year
Max Spread
0.1-0.5 metres
Max Height
0.5-1 metres

Growing Conditions

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

Position

Full sun
Aspect
West–facing or South–facing
Exposure
Sheltered
Hardiness
H2

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
Callistephus are bushy, upright annuals with coarsely toothed ovate leaves and large, solitary, daisy-like flower-heads, often double in cultivars, in late summer and autumn
Name Status
Correct
Plant Range
China

How to Grow

Cultivation

Grow in a sheltered site in fertile, neutral to alkaline, moist but well-drained soil in full sun. Tall cultivars require staking

Propagation

Propagate by seed sown at 16°C in early spring or in situ in mid-spring

Suggested planting locations and garden types

  • Cottage and informal garden
  • Patio and container plants
  • City and courtyard gardens
  • Wildlife gardens
  • Mediterranean climate plants
  • Cut flowers
  • Flower borders and beds

Pruning

Deadhead to prolong flowering

Pests

May be susceptible to aphids and cutworms

Diseases

Prone to wilt diseases