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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 GB / Ireland
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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