Joshua Tree National Park - Wildflowers

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 5000 feet may have plants blooming as late as June.

Spring Blooming Periods Lower Elevations: 1000 – 3000 feet
Yuccas—March and April
Annuals—February, March, and April
Cacti—March, April, and May Higher Elevations: 3000 – 5000 feet
Joshua trees—March and April
Annuals—March, April, and May
Cacti—April, May, and June