How to grow Romneya coulteri

Romneya coulteri growing shrub of the genus Romneya also known as Coulter’s Matilija poppy or California tree poppy, Romneya coulteri perennial evergreen or deciduous plant, used as ornamental plant, hedge plant and as cut flower, can grow in subtropical, mediterranean or temperate climate and growing in hardiness zone 8-10

Leaves color green in oval deeply lobed shape.

Romneya coulteri flower

Flower color white with yellow in the middle (stamens), flower shape in bowl shape and the petal looks like crepe.

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How to grow Romneya coulteri growing and care:

Well-drained soil, moist soil

What is the best way to start growing?
Plant / Seed / Vegetative reproduction

Is it necessary to use vegetative reproduction?

Difficulties or problems when growing:

Planting season:
All year (in hardiness zone 10b, but better in spring, summer

Pests and diseases:

Pruning season:
Autumn / Winter

How to prune:
Dead flower and

Size of the plant:
1-2m, 40-80 inches

Growth speed in optimal condition:
Fast growing / Medium growing

Water requirement:
Small amount of water / Average amount of water

Light conditions in optimal condition for growing:
Full sun / Half shade

Is it possible to grow indoor as houseplant?

Growing is also possible in a planter /flowerpot / containers:

Blooming information

Bloom season?
Spring / Summer

General information about the flower:
White flowers with yellow stamens, flower in bowl shape and the petal looks like crepe.

Scientific name:

Romneya coulteri

How to grow Romneya coulteri

Romneya coulteri flower

Romneya coulteri


Blooming Seasons
  • Spring flowers
  • Summer flowers
Flower colors
  • White flower
  • Mediterranean Climate
  • Subtropics Climate
  • Temperate Climate
Ornamental parts
  • Ornamental flower
  • Ornamental leaves
  • Ornamental plant
Plant growing speed
  • Average growing plants
  • Fast growing plants
Plant life-form
  • Deciduous
  • Evergreen
  • Perennial plant
  • Shrub
Plant Uses
  • Floristry
  • Hedging plants
  • Ornamental plants
Planting Season
  • Autumn Planting
  • Spring Planting
  • Summer planting
  • Winter planting
Plants sun exposure
  • Full sun Plants
  • Part shade Plants
Watering plants
  • Regularly water
  • Small amounts of water
Hardiness zone
  • Hardiness zone 10
  • Hardiness zone 8
  • Hardiness zone 9