Interesting facts about the Saguaro Blossoms:About the size of teacups, they open up during the cool nights of May, and must be seen in early morning, or they close up during the heat of the day. The flower petals finally drop off and are succeeded by pinple colored fruit. This ripens in mid summer, and splits open to reveal a bright red fruit pulp, resembling another blossom. This is a favorite food for both birds and Indians. The latter eat it raw, preserved or dried. TREESOnly one seed in 1/4 million germinates and reaches maturity. Their growth is slow. After ten yrs--only four inches high. After thirty years--three feet high. After 100--they start to form branches. Grow thirty-five feet average--fifty feet maximum.Found mainly in northwestern Mexico and southwestern ArizonaRequires rocky soil to give the tree root ballast. Can absorb over a ton of water after a storm. Can grow for years w/o further moisture.