Siskiyou Lewisia
Lewisia cotyledon
Last reviewed: July 2026
Lewisia cotyledon is a drought-tolerant succulent native to California and Oregon that produces showy pink to white flower clusters from May through July, attracting bees and butterflies to rock gardens.
Siskiyou Lewisia (Lewisia cotyledon) is not on the ASPCA Animal Poison Control Center toxic plant list for dogs or cats (aspca.org (opens in new tab), last reviewed 2026-05-21). If your pet shows symptoms after eating any plant, call the ASPCA at (888) 426-4435.
Light
part sun
Water
low
Size
4"–12" H × 6"–12" W
Bloom
May, Jun, Jul
Native to
CA, OR
Pollinators
bees, butterflies
Siskiyou lewisia is a charming evergreen succulent with rosettes of fleshy, spoon-shaped leaves. It produces showy clusters of star-shaped flowers in shades of pink, white, or orange that bloom above the foliage from late spring through summer.
Growing Siskiyou Lewisia
Grow Siskiyou Lewisia in part sun and low water. Mature plants reach 4 to 12 inches tall and spread 6 to 12 inches wide. Expect low maintenance to keep it looking intentional in a front yard.
In an HOA neighborhood
Siskiyou Lewisia is an HOA-friendly choice. Maintenance level: low. Tidiness: 4 out of 5.
Works well in: front yard, foundation, street edge, mid zone.
- Requires excellent drainage to prevent rot
Wildlife value
The brightly colored blooms attract both bees and butterflies, providing valuable nectar during the growing season.
Common questions
- When does Lewisia cotyledon bloom?
- Siskiyou Lewisia blooms from May through July, producing clusters of pink to white flowers that attract bees and butterflies.
- Where is Lewisia cotyledon native?
- Lewisia cotyledon is native to California and Oregon, where it grows naturally in rocky, mountainous areas of the Siskiyou Mountains region.
- What growing conditions does Siskiyou Lewisia prefer?
- This succulent thrives in well-draining soil with low water requirements and can tolerate full sun to partial shade conditions, making it ideal for rock gardens and xeriscaping.
- What pollinators visit Lewisia cotyledon?
- Bees and butterflies are the primary pollinators of Siskiyou Lewisia, attracted to its showy spring and summer blooms.
- Is Siskiyou Lewisia toxic to dogs?
- Siskiyou Lewisia is not on the ASPCA Animal Poison Control Center toxic plant list for dogs (aspca.org).
- Is Siskiyou Lewisia toxic to cats?
- Siskiyou Lewisia is not on the ASPCA Animal Poison Control Center toxic plant list for cats (aspca.org).
- Is Siskiyou Lewisia HOA-friendly?
- Siskiyou Lewisia is generally an HOA-friendly choice in the right placement, with low maintenance.
Native range data from the USDA PLANTS Database and regional native plant society lists. Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.
Ready to grow Siskiyou Lewisia? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.
Not sure where to start? Take the 2-minute yard quiz