How do plants that need very little water survive? – Alivia, 11, Maryland
melissamayerDear Alivia,
My neighbor has a very prickly garden. It’s full of cactuses—including one thorny plant nearly as tall as my house. That’s not something you see every day in the Pacific Northwest. Cactuses usually live in dry places like deserts.
I talked about your question with my friend Linda Chalker-Scott. She’s a garden scientist at Washington State University.
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