Superblooms take place in some desert climates after unusually wet winters, when typically dormant seeds and plants wake up. The result, especially in California and Arizona, can be hillsides carpeted in color as thousands of flowers pop open around the same time.
“There is not a hard and fast definition of superbloom,” said Michelle Thompson, chief of communications for Arizona State Parks. “The last time we had it was in 2019, and it depends on the weather and seed germination year to year.”