• AGM plants

    AGM plants have been through a rigourous 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

Carpenteria californica

Tree anemone

Tree anemone

© � RHS 1999

  • Other common names Tree anemone

  • Genus Carpenteria are evergreen shrubs with simple, leathery, dark green leaves and large, bowl-shaped white flowers with prominent yellow stamens

  • Family Hydrangeaceae / Hydrangeaceae

  • Species C. californica is a medium-sized, bushy evergreen shrub, often spreading in growth. Leaves narrowly elliptic, shiny green above. Flowers to 7cm in width, pure white with conspicuous yellow stamens

  • Plant range USA (California)


  • Foliage Evergreen

  • Habit Bushy



  • Full Sun

  • Aspect South-facing or West-facing

  • Exposure Sheltered


  • Chalk


  • Chalk


  • Chalk


  • Chalk


  • MoistureMoist but well-drained

  • SoilChalk, Clay, Sand, Loam

  • pHAcid, Alkaline, Neutral


  • Ultimate height

    1.5-2.5 metres

  • Ultimate spread

    1.5-2.5 metres

  • Time to ultimate height

    10-20 years

How to grow

Cultivation Grow in moist but well-drained soil in a sunny, sheltered position

Propagation Propagate by seed or semi-hardwood cuttings

Suggested planting locations and garden types Low Maintenance Wall-side Borders City & Courtyard Gardens

How to care

Pruning Pruning group 8

Pests Can get brown scale

Diseases A leaf spot may occur

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