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Californian Tree Poppy in the GardenTags plant encyclopedia

Romneya coulteri

 

Californian Tree Poppy

Large deciduous shrub, which spreads by suckers. Produces silvery green leaves on tall branching stems, and large white poppy-like flowers with a yellow centre between mid to late summer.

Contributed by @richard.spicer.7906

 
plant Features
  • Californian Tree Poppy likes full sun

    Full sun

  • Californian Tree Poppy likes occasional watering

    Occasional watering

  • Californian Tree Poppy is frost hardy: 23f (-5°c)

    Frost Hardy: 23F (-5°C)

  • Californian Tree Poppy likes moist and free draining

    Moist and free draining

 
plant information

Common name

Californian Tree Poppy

Latin name

Romneya coulteri

type

Herbaceous Perennials

family

Papaveraceae

ph

5.0 - 8.0 Acid - Neutral

  • Light

    Californian Tree Poppy likes full sun

    Full sun

  • Frost

    Californian Tree Poppy is frost hardy: 23f (-5°c)

    Frost Hardy: 23F (-5°C)

  • Soil

    Californian Tree Poppy likes moist and free draining

    Moist and free draining

  • Water

    Californian Tree Poppy likes occasional watering

    Occasional watering

Plant & bloom calendar

  •  
    Best time to plant
  •  
    When the plant will bloom

full grown dimensions

The size of a fully grown Californian Tree Poppy is 1.50meters x 2.50meters 1.50 M 2.50 M

Romneya coulteri

Large deciduous shrub, which spreads by suckers. Produces silvery green leaves on tall branching stems, and large white poppy-like flowers with a yellow centre between mid to late summer.


Planting Outdoors spring

From Early Spring TO Late Spring

Plant out into a fertile, moist but free draining site in full sun.

 

Planting Outdoors autumn

From Early Autumn TO Mid Autumn

Plant out into a fertile, moist but free draining site in full sun.

 

Propagation by seed

From Early Spring TO Mid Spring

Sow seeds into pots with a suitable compost and place under glass.

 

Propagation by cuttings

From Mid Spring TO Early Summer

Stem tip cuttings are taken in the spring/early summer from this years growth. Cleanly cut just below a leaf joint, up to a 10cm tip, remove lower leaves and pinch out the tip, dip into hormone compound and place them around the edge of a pot filled with cutting compost., water well. Place a plastic bag over the pot to give humidity, the bag must be removed a couple of times a week to ventilate, put the pot in a light spot but avoid direct sunlight.

 

Flowering Season

From Mid Summer TO Mid Autumn

Large white poppy-like flowers with a yellow centre from mid Summer to mid Autumn

 
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