Paz
Crowing
I would say, as far as I know at least, the best tactic to use less water, is to live on the British isles. But if you can’t do that, there are vegetable varieties that were specifically bred to use less water.Curious if hydroponics actually uses less water... We assume a lot of water because of the amount of water in the system, but it's a pretty well sealed system so evaporative loss is likely much less than typical growing/ watering methods.
Baladi Shami tomatoes don’t need watering at all when they reach two months old! They use dew.