Does Chlorinated Water Kill Plants?

Swimming pool water contains chemicals, especially chlorine, that can harm your trees and landscape plants when water drains and floods the area. Too much chlorine can damage tree leaves and other delicate tissues. Too much chlorinated water all at once can even kill trees.

Is it OK to water plants with chlorinated water?

A: It's a waste, but fresh pool water is not safe for irrigating plants. It's because the chlorine in pool water is very toxic to plants. If the chlorine level is low enough, it's possible to use it. ... Periodically, pool water is “shocked” or hyper-chlorinated, which raises the chlorine level even higher.

Will pool chlorine kill plants?

Pool water contains chlorine or bromine, both harmful to plants. You'll see the results — leaves turning yellow or brown (the whole leaf or just around the edges) and extensive leaf drop. If your pool was uncovered all winter but still treated with chlorine, the chlorine levels might be too high to be safe for plants.