Coves' cassia
Senna covesii
Last reviewed: August 2026

Light
full sun
Water
low
Size
12"–36" H × 18"–36" W
Bloom
Mar, Apr, May, Sep, Oct
Native to
AZ, CA, NM, NV
Pollinators
bees
Before you buy
Your city may pay you to plant this
Cities and water utilities offer rebates for replacing lawn with native and water-wise plants. We track 431 programs across 44 states, each with a link to the provider and the date we last checked it.
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Low, silvery-leaved subshrub with soft gray-green compound leaves and bright yellow five-petaled flowers appearing after rains in spring and fall, growing on dry desert flats and rocky slopes.
In an HOA neighborhood
Coves' cassia is an HOA-friendly choice. Maintenance level: low. Tidiness: 3 out of 5.
Works well in: front yard, foundation, street edge, mid zone.
- Appears bare and stick-like during winter dormancy
- May look informal compared to traditional landscaping
Wildlife value
Host plant for cloudless sulphur, sleepy orange.
Foliage is a larval host plant for cloudless sulphur and sleepy orange butterflies, and the flowers provide nectar and pollen for bees.
Common questions
- How much sun does Coves' cassia need?
- Coves' cassia grows best in full sun conditions.
- When does Coves' cassia bloom?
- Coves' cassia blooms in March, April, May, September, and October.
- Where is Coves' cassia native?
- Coves' cassia (Senna covesii) is native to AZ, CA, NM, NV, per vouchered herbarium specimen records and regional native plant society lists.
- What butterflies or moths does Coves' cassia host?
- Coves' cassia is a larval host plant for cloudless sulphur and sleepy orange.
- Is Coves' cassia HOA-friendly?
- Coves' cassia is generally an HOA-friendly choice in the right placement, with low maintenance.
Native range data from vouchered herbarium specimen records and regional native plant society lists. Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.
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