Calochortus plummerae, commonly known as Plummer’s mariposa lily, is a perennial herb native to the chaparral, oak woodlands, and lower montane coniferous forests of Southern California, including coastal areas, inland hills, and parts of the Transverse and Peninsular Ranges. It typically grows to a height of 12-18 inches (30-45 centimeters). This species is characterized by its thin, branching stems and long, grass-like leaves. The flowers, which appear from May to July, are particularly showy with pink, lavender, or white petals that are distinctively hairy on the inside, and they often have a maroon or yellowish base. The flowers’ appearance adds ornamental value to the plant, making it a desirable species for native plant gardens and wildflower meadows.

Plummer’s mariposa lily is appreciated for its drought tolerance and its ability to adapt to well-drained, rocky soils, typical of its native habitat. It is often used in cultivation for xeriscaping, rock gardens, and naturalistic plantings. While it prefers full sun to light shade, it requires minimal water once established, reflecting its adaptation to dry summer conditions in its native range. There are no widely known cultivars of this species, but its natural beauty makes it a standout without selective breeding. Gardeners should be aware that it can be susceptible to fungal diseases if grown in conditions that are too moist or lack proper drainage. It is also important to note that this plant is not aggressive and does not pose a threat of invasiveness when grown outside its native range.CC BY-SA 4.0