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Romneya coulteri

California tree poppy, Coulter's Matilija Poppy

These seeds are very difficult to germinate. We are not liable if none sprout. Good luck!
In Stock: 0.131 lb (Total:0.131lb)
  • Romneya coulteri

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Buying options

0.13 lb


Germination test:
Cut (Full Seed)
Seeds per lb:
0.13 lb
Collected in:
Crop year:
Min. hardiness zone:
Item ID:

Growing Info

Scarification: These seeds are difficult to germinate. They usually sprout after a fire. You will need to create smoke/fire in order for them to germinate. Soak in smoke water for 24 hours OR use the fire method in the next step.
Stratification: none required
Germination: Surface sow on top of soil in a tray, place needles on top and burn them. Water thoroughly.

Other: Requires full sunlight and good drainage. 

Romneya coulteri, also known as Coulter's Matilija Poppy or California tree poppy, is a beautiful perennial flowering plant native to southern California and Baja California. It grows in dry canyons in chaparral and coastal sage scrub plant communities, sometimes in areas recently burned. This shrub can reach up to 2 m in height, with gray-green, waxy leaves and large, solitary white flowers with yellow stamens. It is a popular ornamental plant, prized for its showy flowers. However, it should be planted with caution as it can grow aggressively by spreading underground rhizomes. Romneya coulteri bears the largest flowers of any species native to California, surpassed only by Hibiscus lasiocarpos. This magnificent plant was nominated for the honor of California state flower in 1890, but lost to the California poppy. Experience the beauty of Romneya coulteri yourself by planting it in your garden!

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