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PlantSnap
Plant Care
Smoke tree
(Psorothamnus spinosus)
Also Known As
Smoke tree, Blue flame, Chihuahua desert smoke tree
About This Plant
Psorothamnus spinosus is a species of flowering plant in the pea family, Fabaceae, that is native to the southwestern United States and northern Mexico. It is a shrub that can grow up to 5 feet (1.5 meters) tall and 6 feet (1.8 meters) wide. The plant has needle-like leaves and produces small, purple flowers in the spring and summer.
Plant Care Instructions
Outdoor Size Range
3 - 5 feet (0.9 - 1.5 meters) tall and 4 - 6 feet (1.2 - 1.8 meters) wide
Light Requirements
Psorothamnus spinosus requires full sun for optimal growth, at least 6 hours of direct sunlight per day.
Humidity Needs
The plant prefers low humidity levels and can tolerate dry air.
Fertilizing Schedule
The plant does not require fertilizer, but a light application of a balanced fertilizer in the spring can encourage growth.
Pruning Guidelines
Prune the plant in the late winter or early spring to remove any dead or damaged branches. The plant can also be pruned to maintain its shape and size.
Common Pests and Diseases
Psorothamnus spinosus is relatively pest-free, but it can be susceptible to spider mites and aphids.
Indoor Size Range
Not suitable for indoor growing
Watering Schedule
The plant is drought-tolerant and requires infrequent watering once established. Water deeply once a week during the growing season, and reduce watering in the winter.
Temperature Range
Psorothamnus spinosus is adapted to arid climates and can tolerate high temperatures. It is hardy to USDA zones 8-11.
Growing Season
The growing season for Psorothamnus spinosus is from spring to fall.
Growing Difficulty Level
Psorothamnus spinosus is an easy plant to grow and maintain, making it a great choice for beginner gardeners.
USDA Hardiness Zones
Psorothamnus spinosus is hardy to USDA zones 8-11.
Did You Know?
The name 'Smoke Tree' comes from the plant's ability to produce a smoke-like haze of tiny purple flowers in the spring and summer.
