How much bleach does it take to harm a tree?

Bleach is highly toxic to trees, and even small amounts can cause significant damage. Applying as little as a few ounces of bleach directly to the soil or foliage can harm or kill a tree by disrupting its cellular functions and water uptake. The specific amount that can cause harm varies depending on the tree species, size, and environmental conditions, but generally, any exposure to bleach should be avoided to protect tree health.