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Romneya coulteri: Matilija Poppy is a fantastic perennial addition to any garden. This spectacular California native bush "poppy" bears very large, papery white petals; flowers are 7 to 8 inches wide with and bright yellow centers, resembling a fried egg. t spreads underground via rhizomes.
It may reach more than 7 feet in height and width. Appreciates semi-regular watering during it's first year and then takes off, requiring much less water, once established. Very fast growing. Can be slow or difficult to germinate.
USDA Zone(s): 6-11
Blooming Period: Spring, Summer
Exposure: Full Sun
Soil Type: Gravelly to clay soils.
Water Usage: Xeric after first year
Collection elevation: 2000 feet
Location: Western San Bernardino County
Cut back in fall