California Gardens - The Year Round Gardening Site

Castilleja exserta ~ Purple Owl's Clover (Orthocarpus purpurascens)

Castilleja exserta is found often in Spring wildflower displays in grass and brushlands from the throughout the state up to an elevation of 5000 feet.; Purple Owl's Clover is often included in wildflower seed packets but I have found it rarely persists if it comes up at all. Then I go and look at the potted plants at Rancho Santa Ana Botanic Garden and there it is mixed in with a pot full of wildflowers. Dry summer conditions are critical, as is a Fall scattering of the seeds. Castilleja exserta is a food source for the Checkerspot Butterflies and if it grows it will be a great addition to the butterfly garden. Castilleja exserta was formerly classified as Orthorcarpus purpurascens.

High resolution photos of Castilleja exserta are part of our garden image collection.

Castilleja exserta, Purple Owl's Clover