Scottsdale vista from McDowell Mountain Preserve

Friday, January 7, 2011

Saguaro life cycle -- flowering and reproduction

A mature Saguaro produces many flowers at the tips of its arms during the heat of late April through early June. Each flower opens at night and is spent by the next afternoon. Birds and insects pollinate some of the flowers, and the Saguaro produces red fruits and tiny black seeds. A Saguaro yields about 40 million seeds in its lifetime, but only a small fraction of them germinate, and fewer yet survive to adulthood.

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