Scottsdale vista from McDowell Mountain Preserve

Tuesday, January 4, 2011

Saguaro life cycle -- the early years

This Saguaro actually is no kid, but it would be difficult to find a baby, as seedlings may grow as little as 1/4 inch the first year. This specimen is growing in the midst of its "nurse plant." Seedlings often sprout in the shade of another plant, which offers protection from scalding sun and critters. However, in time the Saguaro robs its nurse of the scarce nutrients and water available in the desert, and the protective plant dies. For an interesting overview of this cactus, scroll down on the Saguaro National Park information page.

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