How much water?

Hi, i am a semi-experienced outdoor grower, in a state with medical laws. I have a couple of seasons under my belt. But it's time to turn up the notch this year so I'm rethinking a few things. One of the most important is water. I have always watered with a hose. I'm considering measuring my water this year. my question is: how much water do you guys with bigger containers/holes give each plant? Im thinking gallons you would water each hole with 1 cubic yard of soil and how often (obviously soil type affects frequency)? also considering a couple 3 cu yd holes...any input much appreciated.

Snail

do them all 3 cubic yard holes absolutely drnce then when you water about 5 gallons a hole and just water when you plants seem to need them (about the first inch is dry its needed the)canibus needs alot of water so suplying it is a good thing the weather changes so meshering is pointles just do it ass it is needed
the bigger hole will yield more if it has enouf water

I give 3 gallons in a 3x3x1 hole. Sooo for a 1 cubic yard hole I would say 7-10 gallons.

It depends on the size of the plant really.

Water straight from the hose has many chemicals in it that may affect the quality of your grow. If you can, get a couple of five gallon buckets and fill them a day or two before watering to let some of them dissipate.

I water from my hose but I check the hole with a moisture meter prior to watering. I havent went wrong with this cheap investment. Also if you live in a good water district and not Socal your water should be fine. dirrtyd

i know plenty about chemicals in hoses and water. I have some background with industrial chemicals. My water is from a very small municipality (So far from SoCal...give thanks). Im just wondering how many people even know how much water they give their outdoor and if they do, how much/ for what size hole? My garden will probably focus on larger plants this year. like 1- 3yd of soil per hole.