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Shrubby Senna, Shrubby Cassia, Wislizenus' Senna
Senna wislizeni
Southwestern native. Upright, rounded to irregular habit. Rigid, woody, somewhat thorny, dark brown branches. Bright to olive green, 1/2 to 1 1/2 inch long leaves are divided into 4 to 6, small, smooth, rounded, oblong to oval leaflets with sharply pointed tips. Clusters of large, bright yellow, pea-like flowers. Attract bees and butterflies. Flattened, slender, dark brown, 4 long seedpods. Seeds are a food source for birds. Survives on minimal water, but lusher growth and better flower display with just a little additional water. Some litter from seed and flower drop. Winter deciduous. Leafs out in late Spring. Prune for shape in late winter or leave natural. Avoid shearing. Synonyms: Senna wislizenii, Cassia wislizeni, Cassia wislizenii.
- Plant type: Perennial, Shrub
- Maintenance level: Medium, Low
- Water requirement: Low
- Sun exposure: Full, Part Sun, Morning Sun, Afternoon Sun, Reflected Heat
- Height range: 8 Feet
- Width range: 6 Feet
- Canopy value: 28 ft²
- Growth rate: Medium
- Seasonal habit: Deciduous
- Flower color: Yellow
- Flower season: Summer, Autumn
- Fruit color: Brown
- Fruit season: Spring, Summer, Autumn
- General foliage color: Green
- Design style: Butterflies, Thorns/Spines
- Hardiness cold tolerance: 0 °F
- Soil preference: Well Drained
- Native location: Arizona, New Mexico, Texas, Northern Mexico
- PH preference: Alkaline/Basic, Neutral, Not Particular
- Sunset zones: 10, 11, 12, 13
- USDA hardiness zone: 7a, 7b, 8a, 8b, 9a, 9b, 10a, 10b
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