What is green water?
...the space between the soil particles and in the bodies of the microscopic creatures which live in healthy soil. How much water? I don’t know, but the real answer is, enough. Plants acclimated to your local climate (natives or similar), living in spongy, healthy soil don’t need supplemental irrigation. Not even in the summer. (Drip line doesn’t occur spontaneously in the wild, after all.) Conversely, in times of heavy rainfall, healthy, spongy soi...