Romneya coulteri Harv.
Coulter's Matilija Poppy, Matilija Poppy, Fried-egg Flower
Papaveraceae (Poppy Family)
USDA Symbol: ROCO
From late spring to early summer the 8 ft. stems of Coulterís matilija-poppy are tipped with five to eight silky, white, poppy-like flowers, each 6-8 in. wide, with crinkled or pleated petals surrounding a large ball of golden stamens. The huge flowers are slightly fragrant. Stems and branches are covered with bright-green, lobed leaves. Tall, heavy, leaning, leafy, branched stems grow in patches and have 5-8 large, fragrant, white flowers blooming near ends.
The large white flowers are conspicuous from a distance in early summer. A second species, Bristly Matilija Poppy (R. trichocalyx), has bristly hairs on the sepals and on the stalk beneath the flower. Hybrids between the two are grown as ornamentals.
From the Image Gallery
Plant CharacteristicsDuration: Perennial
Leaf Arrangement: Alternate
Leaf Complexity: Simple
Size Class: 6-12 ft.
Bloom InformationBloom Color: White
Bloom Time: May , Jun , Jul
Native Distribution: S. CA from San Ana Mts. to San Diego Co.
Native Habitat: Dry washes & canyons below 4000 ft.
Growing ConditionsLight Requirement: Sun
Soil Moisture: Dry
Soil Description: Dry, rocky or sandy soil.
PropagationDescription: Increase by cuttings of rootstocks taken in fall or winter. Can be propagated by seed but the seedlings take several years to flower.
Seed Collection: Not Available
Seed Treatment: Treat with fire in the fall and germinate outdoors.
Commercially Avail: yes
Find Seed or Plants
Find seed sources for this species at the Native Seed Network.
View propagation protocol from Native Plants Network.
From the National Organizations DirectoryAccording to the species list provided by Affiliate Organizations, this plant is on display at the following locations:
Native Seed Network - Corvallis, OR
BibliographyBibref 995 - Native Landscaping from El Paso to L.A. (2000) Wasowski, S. and A. Wasowski
Search More Titles in Bibliography
From the ArchiveWildflower Newsletter 1984 VOL. 1, NO.4 - Lady Bird Heartened by Progress, Horticultural Society Annual Meeting Held, Dire...
Additional resourcesUSDA: Find Romneya coulteri in USDA Plants
FNA: Find Romneya coulteri in the Flora of North America (if available)
Google: Search Google for Romneya coulteri
MetadataRecord Modified: 2010-08-09
Research By: TWC Staff