Parkinsonia aculeata
Jerusalem Thorn
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Jerusalem Thorn (Parkinsonia aculeata) - Description
P. aculeata is native to the southwestern United States and Mexico. It bears yellow-green bark and spiny twigs. It has sparse foliage with 6 to 9 inch long leaves with many tiny leaflets. It also produces numerous yellow flowers in loose, 3 to 7 inch long clusters.
Jerusalem Thorn (Parkinsonia aculeata) - Blooming
Blooms in the spring for an extended period of time, and then intermittently throughout the year. Followed by sometimes woody pea-like pods.
Jerusalem Thorn (Parkinsonia aculeata) - Growth
Growth is rapid at first but eventually slows. Grows best in full sun with low humidity. Works well as a hedge or in a shrub border. Tree species are nice specimen plants.
Jerusalem Thorn (Parkinsonia aculeata) - Planting
Sow seeds in spring.
Jerusalem Thorn (Parkinsonia aculeata) - Pest
Spider mites. Parkinsonia is also prone to galls, dieback, leaf spots, and mushroom root rot.
Jerusalem Thorn (Parkinsonia aculeata) - Interesting facts
Parkinsonia is endemic to the dry regions, such as savannas and scrublands, of Africa, Central America, and Southern North America. The common name "Palo Verde" comes from its green bark, which is able to photosynthesize. Palo Verde is Spanish for "green stick".
Jerusalem Thorn (Parkinsonia aculeata) - Soil and irrigation
Does best with rich, well-draining soils.
