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Herbaceous Perennial

Sidalcea 'Oberon'

prairie mallow 'Oberon'

A deciduous perennial forming a basal rosette of glossy green, rounded leaves. Branching stems with lobed leaves bear upright flower spikes to 70cm tall in summer; the open, cup-shaped flowers are a soft rose-pink with whitish centres

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Size
Ultimate height
0.5–1 metres
Time to ultimate height
2–5 years
Ultimate spread
0.1–0.5 metres
Growing conditions
Chalk
Loam
Sand
Moisture
Moist but well–drained
pH
Acid, Alkaline, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Green
Summer Pink White Green
Autumn
Winter
Position
  • Full sun
Aspect

West–facing or South–facing

Exposure
Sheltered
Hardiness
H7
Botanical details
Family
Malvaceae
Native to the UK
No
Foliage
Deciduous
Habit
Bushy
Genus

Sidalcea can be annuals or perennials, forming a clump of rounded or palmately lobed basal leaves, with erect stems bearing more deeply divided leaves and terminal racemes of 5-petalled mallow-like flowers

Name status

Accepted

How to grow

Cultivation

Best grown in full sun and moist but well-drained soil that is not wet in winter. Plants can be short-lived in heavy soils

Propagation

Propagate by division in spring

Suggested planting locations and garden types
  • Coastal
  • City and courtyard gardens
  • Cottage and informal garden
  • Patio and container plants
  • Garden edging
  • Flower borders and beds
  • Underplanting of roses and shrubs
Pruning

Cut back after flowering to encourage fresh foliage and promote a long flowering season

Pests

Generally trouble free but young growth may be damaged by slugs and snails

Diseases

May be susceptible to rust diseases

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