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Senna covesii, Cove's Cassia (also known as Desert Senna) is a perennial shrub native to our Southwestern deserts.
A member of the pea family, Desert Senna grows most often in sandy and gravelly washes and open mesas below 3000 feet. It blooms with nearly fluorescent yellow flowers from April into May. This is a fantastic plant for xeriscape, and is often used after wildfires, and as native roadside vegetation.
Shrubs may reach 10' feet tall if cared for properly.
Sunset Zone(s): 10-13
USDA Zone(s): 7-10
Blooming Period: Spring
Exposure: Full Sun, intolerant of shade
Soil Type: Gravelly, sandy, can be tolerant of other soils
Water Usage: Xeric once established
Collection elevation: 1250 feet
Location: San Bernardino County (private property) NOTE: CNPS list-Protected in California