Platystemon californicus - Cream Cups
Platystemon californicus is a common sight along the Southern California trails, particularly in Sunny but partially protected locations. The Cream Cups bloom for much of the Spring, often starting in March and continuing well into May if the moisture is adequate. Platystemon californicus flowers vary from all white petals to having petals with significant yellow markings. The Cream Cups are a good choice for wildflower seed mixes and often perform quite well. I have seen them growing in a variety of soil types, but most often in heavy soils on an eastern exposure or with some larger shrubs nearby to provide Platystemon californicus a little afternoon shade.
Other plants from the Poppy Family featured on this site:
Argemone munita
Dendromecon harfordii
Dendromecon rigida
Eomecon chionantha
Eschscholzia caespitosa
Eschscholzia californica
Eschscholzia californica Carmine King
Eschscholzia californica White Linen
Eschscholzia minutiflora
Eschscholzia parishii
Glaucium flavum
Hunnemannia fumariifolia
Romneya coulteri