• AGM plants

    AGM plants have been through a rigorous trial and assessment programme. They are:

    • Excellent for ordinary use in appropriate conditions
    • Available to buy
    • Of good constitution
    • Essentially stable in form & colour
    • Reasonably resistant to pests & diseases

Eschscholzia californica Thai Silk Series

California poppy Thai Silk Series

California poppy Thai Silk Series


  • Other common names California poppy Thai Silk Series

  • Family Papaveraceae

  • 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

  • Details 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


  • Foliage Deciduous

  • Habit Bushy

  • Hardiness

    Hardiness ratings

    All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets

    • H1a - Under glass all year (>15C)
    • H1b - Can be grown outside in the summer (10 - 15)
    • H1c - Can be grown outside in the summer (5 - 10)
    • H2 - Tolerant of low temperatures, but not surviving being frozen (1 to 5)
    • H3 - Hardy in coastal and relatively mild parts of the UK (-5 to 1)
    • H4 - Hardy through most of the UK (-10 to -5)
    • H5 - Hardy in most places throughout the UK even in severe winters (-15 to -10)
    • H6 - Hardy in all of UK and northern Europe (-20 to -15)
    • H7 - Hardy in the severest European continental climates (< -20)




  • Full Sun

  • Aspect South-facing or West-facing

  • Exposure Exposed or Sheltered


  • Chalk


  • Chalk


  • Chalk


  • MoistureWell-drained

  • SoilSand, Chalk, Loam

  • pHAcid, Alkaline, Neutral


  • Ultimate height 0.1-0.5 metres

  • Ultimate spread 0.1-0.5 metres

  • Time to ultimate height 1 year

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 Banks and Slopes Flower borders and beds City & Courtyard Gardens Coastal Cottage & Informal Garden Gravel Garden Patio & Container Plants

How to care

Pruning Cut back after flowering

Pests Generally pest free

Diseases Generally disease free

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