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Annual Biennial

Eschscholzia californica Thai Silk Series
  • RHS Plants for pollinators

California poppy Thai Silk Series

Thai Silk Series are annuals with attractively dissected, blue-green foliage and single or more often semi-double flowers 4-6cm wide, in a range of shades of cream, yellow, orange, pink and red, sometimes with a cream centre

Size
Ultimate height
0.1–0.5 metres
Time to ultimate height
1 year
Ultimate spread
0.1–0.5 metres
Growing conditions
Chalk
Loam
Sand
Moisture
Well–drained
pH
Acid, Alkaline, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Blue Green
Summer Cream Orange Pink Red Yellow Blue Green
Autumn
Winter
Position
  • Full sun
Aspect

West–facing or South–facing

Exposure
Exposed or Sheltered
Hardiness
H3
Botanical details
Family
Papaveraceae
Native to the UK
No
Foliage
Deciduous
Habit
Bushy
Genus

Eschscholzia can be annuals or perennials, with finely divided leaves and solitary, long-stalked, poppy-like yellow, orange or red flowers, followed by conspicuous long seed-pods

Name status

Accepted

How to grow

Cultivation

Will thrive in poor, well-drained soil but they need full sun for the flowers to open. Can be grown as a drought-tolerant container plant. Good for exposed or coastal areas

Propagation

Propagate by seed sown in succession from mid-spring onwards

Suggested planting locations and garden types
  • City and courtyard gardens
  • Gravel garden
  • Patio and container plants
  • Coastal
  • Cottage and informal garden
  • Wildlife gardens
  • Banks and slopes
  • Flower borders and beds
Pruning

Cut back after flowering

Pests

Generally pest-free

Diseases

Generally disease-free

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