Doellingeria umbellata

RHS Plant Profile
tall flat-topped white aster

Other common names

parasol whitetop, tall white aster

Synonyms

Aster umbellatus

Herbaceous Perennial

A deciduous perennial forming spreading clumps of sturdy, upright stems to 1.5m tall clothed in broad, lance-shaped leaves up to 16cm long. In summer the stems are topped with flat, wide heads of small, yellow-centred white flowers that are followed by silvery, fluffy seedheads in autumn

Position

Full sun

Soil Types

Chalk, Clay, Loam, Sand

Max Height

1-1.5 metres

Max Spread

0.5-1 metres

Size

Time to Maturity
2–5 years
Max Spread
0.5-1 metres
Max Height
1-1.5 metres

Growing Conditions

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

Position

Full sun
Aspect
East–facing or South–facing or West–facing
Exposure
Exposed or Sheltered
Hardiness
H6

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, Columnar upright
Genus
A genus of rhizomatous or woody perennial herbs with alternate green leaves and clusters of aster-like white flowers with yellow centres
Name Status
Correct
Plant Range
E North America

How to Grow

Cultivation

Grow in moderately fertile, moist but well-drained soil in full sun or partial shade

Propagation

Propagate by division

Suggested planting locations and garden types

  • Cottage and informal garden
  • Prairie planting
  • Cut flowers
  • Flower borders and beds

Pruning

Cut back in late autumn or early spring

Pests

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

Diseases

Generally disease-free