Hardiness zones
Sunset 12-24
USDA 9-11
Landscape Use: Informal hedge, background, screen, accent
Form & Character: Evergreen shrub, billowy, rounded, open, create feeling of distance, openness
Growth Habit: Vigorous and open to 15'
Foliage/texture: Medium to dark green, 4 leaflets/leaf, fine
Flowers & fruits: Lemon yellow pea flowers in late winter to early spring at same time as Senna artemisiodes xartemisioides, but not fragrant, dark brown bean pod fruit in late Spring to Summer are ugly.
Seasonal color: Yellow in early Spring
Temperature: Hardy to 18oF
Light: Full sun
Soil: Well drained
Watering: Drought tolerant
Pruning: Prune as necessary only after flowering, severe renewal pruning after flowering will rejuvenate, but make sure to leave some foliage. Frequent shearing will impact spring floral display as this plant sets flower buds in August.
Propagation: Seed, hot water soak
Disease and pests: Root rot if soil is poorly drained
Additional comments: Slightly more cold hardy than feathery senna. As with other large senna, allow adequate space for growth. Do not use where frequent pruning will be needed to control growth as this will compromise flowering potential.
