Description
Purple Owl’s Clover Seeds grow into Castilleja exserta, a California and Southwestern native annual wildflower with rose-purple to magenta flower spikes and fine green foliage. It is best treated as a native meadow species for full-sun, well-drained plantings where cool-season moisture can support spring bloom.
Why Grow It
- Castilleja exserta, commonly known as Purple Owl’s Clover, with rose-purple native wildflower spikes.
- Best for full-sun California native beds, pollinator plantings, spring meadow edges, and restoration-style mixes.
- Includes 100 planting seeds plus practical sowing, spacing, light, bloom, and germination notes.
Growing Information
| Botanical name | Castilleja exserta |
|---|---|
| Life cycle | Annual native wildflower |
| Mature height | 6-18 in. |
| Light | Full sun |
| Bloom or harvest window | Spring bloom in suitable California and Southwestern native plantings |
| Seed count | 100 seeds |
| Sowing advice | Direct sow fall through winter in mild climates, or very early spring where winters are severe. Broadcast thinly into a native-style bed with well-drained soil; do not bury deeply. |
| Spacing | 6-10 in. apart, or broadcast thinly for naturalized wildflower patches |
| Germination | Often 10-30 days in cool to mild, lightly moist conditions |
Best For
- California native wildflower plantings
- pollinator gardens
- spring meadow edges
- habitat restoration mixes
- low-water wildflower beds
Packet Details
Includes 100 seeds. Store seeds cool, dry, and dark until sowing. Use the growing table above as a planning reference for your local season.
FAQ
When should I sow Purple Owl’s Clover?
In mild California and Southwestern climates, fall through winter sowing usually gives native annuals cool moisture before spring bloom. In colder regions, sow very early spring as conditions allow.
Is Purple Owl’s Clover easy in containers?
It is usually better treated as a direct-sown native wildflower than a transplant crop. Use a well-drained native-style bed or meadow edge rather than a rich, constantly wet pot.
Does it help pollinators?
Yes. When grown in suitable native-style plantings, the spring flowers can support local pollinators.
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