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PlantSnap
Plant Care
Jerusalem thorn
(Parkinsonia aculeata)
Also Known As
Jerusalem thorn, Desert willow, Cercidium, Parkinsonia, Palo verde, Blue palo verde
About This Plant
Parkinsonia aculeata is a species of flowering tree in the pea family, Fabaceae. It is commonly known as Mexican palo verde or Jerusalem thorn. The tree is deciduous and can reach up to 10-30 ft (3-9 m) in height and 10-20 ft (3-6 m) in width. The bark is green when young, turning gray-brown with age. The leaves are small, bipinnate, and bright green in color. The tree produces yellow flowers that bloom in the spring and summer.
Plant Care Instructions
Outdoor Size Range
10-30 ft (3-9 m) in height and 10-20 ft (3-6 m) in width
Light Requirements
Mexican palo verde requires full sun exposure to thrive. It can tolerate some shade, but it may affect its blooming.
Humidity Needs
Mexican palo verde can tolerate low to moderate humidity levels.
Fertilizing Schedule
It is recommended to fertilize the tree once a year in the spring with a balanced fertilizer.
Pruning Guidelines
Pruning is not necessary for this plant species. However, it can be pruned to maintain its shape or remove damaged or diseased branches.
Common Pests and Diseases
Mexican palo verde is generally not prone to pest or disease problems. However, it can be affected by spider mites, scale insects, and caterpillars.
Indoor Size Range
Not suitable for indoor growth
Watering Schedule
The tree is drought-tolerant and can survive with minimal watering. However, it is recommended to water it regularly during the growing season to promote healthy growth.
Temperature Range
This plant species can tolerate a wide range of temperatures, from 20°F (-6°C) to 120°F (49°C). However, it prefers warm temperatures between 60°F (15°C) and 90°F (32°C).
Growing Season
Mexican palo verde blooms in the spring and summer.
Growing Difficulty Level
Mexican palo verde is relatively easy to grow and maintain.
USDA Hardiness Zones
Mexican palo verde can grow in USDA hardiness zones 9-11.
Did You Know?
The Mexican palo verde is the state tree of Arizona.
