Creamcups (Platystemon californicus) are a delicate yet resilient annual wildflower native to California, Oregon, and Nevada. This charming member of the Papaveraceae (poppy) family is well-adapted to open grasslands, sandy soils, and disturbed areas, where it flourishes in spring. Its name comes from the creamy white to pale yellow cup-shaped flowers, which create a striking contrast against its soft, lacey foliage. The plant forms low, sprawling mats that add a delicate touch to wildflower meadows and pollinator gardens. Although white-flowered variations exist, Creamcups is a monotypic species, meaning it is the sole representative of its genus.
 
Creamcups play an essential role in supporting pollinators in its native region, providing early-season forage for a variety of native bees and butterflies. Their ability to thrive in dry, sandy soils also helps stabilize disturbed landscapes and promote biodiversity in arid and semi-arid regions. Additionally, Creamcups are a great companion plant in native plant restorations, complementing other spring-blooming wildflowers. Plants do not compete well against non-native vegetation, and wild populations are increasingly rare and at risk.
 
Creamcups prefer full sun and well-drained soils, thriving in sandy, rocky, or loamy conditions. They are easy to grow from seed, requiring little more than surface sowing in the early spring. Germination occurs within 7 to 21 days, depending on moisture and temperature conditions. As an annual, they rely on reseeding to return each year, making them ideal for naturalized settings and wildflower gardens. Their low water needs also make them a great addition to drought-tolerant landscapes.