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Annual Biennial

Argemone albiflora

prickly poppy

An upright annual or biennial with dark blue-green, thistly-like prickly foliage and large, poppy-like white flowers with yellow to red centres appearing in the summer. Releases a milky, latex-like sap when crushed. Although individual flowers do not last long, they provide continuous blooming collectively. A great addition to a wildflower meadow or wildlife garden

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

East–facing or South–facing or West–facing

Exposure
Sheltered
Hardiness
H4
Botanical details
Family
Papaveraceae
Native to the UK
No
Foliage
Deciduous
Habit
Columnar upright
Potentially harmful
Sap may irritate skin. Wear gloves and other protective equipment when handling
Genus

Argemone can be annuals, perennials or shrubs, often prickly, with simple, lobed or spiny leaves and showy poppy-like flowers in summer followed by large, often spiny fruits

Name status

Correct

How to grow

Cultivation

Grow in well-drained sandy soil in sun or partial shade

Propagation

Propagate by seed. Self-seeds easily in situ

Suggested planting locations and garden types
  • Cottage and informal garden
  • Prairie planting
  • Wildflower meadow
  • Wildlife gardens
  • Low Maintenance
Pruning

No pruning required

Pests

Generally pest-free

Diseases

Generally disease-free

Get involved

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