See Wildflowers at Joshua Tree National Park, California

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The extent and timing of spring wildflower blooms in Joshua Tree National Park may vary from one year to the next. Fall and winter precipitation and spring temperatures are key environmental factors affecting the spring blooming period. Normally desert annuals germinate between September and December. Many need a good soaking rain to get started. In addition to rains at the right time, plants also require warm-enough temperatures before flower stalks will be produced. Green-leaf rosettes may cover the ground in January; however, flower stalks wait until temperatures rise.Wildflowers may begin blooming in the lower elevations of the Pinto Basin and along the park’s south boundary in February and at higher elevations in March and April. Desert regions above 5,000 feet may have plants blooming as late as June. Find out what's blooming and where throughout the desert, by going to Desert Wildflower Reports and/or The Theodore Payne Wildflower hotline http://www.theodorepayne.org/hotline.html. The Black Rock Nature Center is open 8 a.m.-5 p.m. Sun.-Thurs., noon-8 p.m. Fri.

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