Can soap water be used to water plants ?

I know that adding Epsom salts occasionally can be useful. But I don't know about soapy water. I would think it can be harmful, soaps have different chemicals. Plants don't need those, even if it is biodegradable. I agree it would be nice to have a useful means of recycling that water.

I dont know about that it doesnt sound like a good idea to water your plants with soap water especially not something like a banana tree that produces fruit you may eat later think about this would YOU drink the soap water? no? then its probably not a good idea to make your plants drink it either

well i think it will not make much of a difference but still to be on the safer side why dont you do one thing, to be on the safe side why don't you keep the water in a bucket for some time and then use it. so the dirt and the chemicals will settle down. so just use the top water and throw away the rest. still you will save a lot of water.