Romneya coulteri (Californian tree poppy)

Other names: Dream of the desert, Giant white Californian poppy, Matilija poppy, Californian poppy, Bush poppy, Canyon poppy, Fried egg flower

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Where to grow

Soil type
  • Loamy
  • Sandy
Soil drainage
  • Moist but well-drained
  • Well-drained
Soil pH
  • Acid
  • Alkaline
  • Neutral
Sunlight
  • Full Sun
Aspect
  • West
  • South
Exposure
  • Sheltered

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Additional plant details

Cultivation

Grow in fertile, well-drained soil in full sun with shelter from cold, drying winds and frost. Site carefully as resents root disturbance. May be difficult to establish but once established, will spread vigorously via suckers. Drought tolerant.

Suggested uses

Beds and borders, Mediterranean, Cottage/Informal, City, Drought Tolerant, Wallside and trellises

UK hardiness

H5

USDA zones

Zone 7, Zone 8, Zone 9, Zone 10

Sunset zone

4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, H1

WUCOLS

North-Central Coastal = Very Low
Central Valley = Very Low
South Coastal = Very Low
South Inland = Very Low
High and Intermediate Desert = Low
Low Desert = Low

Foliage

Deciduous

Habit

Bushy, Erect, Clump-forming

Native to

California, Mexico

Drought tolerant

Yes

Flood tolerant

No

Toxicity

Not toxic

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