Please show some social responsibility and discontinue features with tropical gardens ("Island Fever," Gardens, by Susan Heeger, Nov. 11). Can you imagine if all Southern Californians adopted such a wasteful approach to gardening? I live out in the desert, where many people are trying to create mini-New England gardens with disregard to our rapidly diminishing water resources. I recently moved into a small co-op, and we are ripping out the boxwood hedges and replacing them with cactus. Imagine cactus in the desert! We are all living in a semiarid environment, and unless a "gray water" system is being used, there is no moral defense for wasting precious resources. These tropical gardens are the SUVs of the plant world. Gross!