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When Does the Saguaro Flower Bloom?

Saguaro Facts & Photos

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Saguaro Cactus
Saguaro Cactus © Judy Hedding
The saguaro flowers once every year, typically in May and June. Not all the saguaro cactus flowers bloom at the same time; several per day will bloom over the period of a few weeks. Saguaro blooms open at night and last through the next midday. Each flower blooms only once.

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