Hey Rusty,
greenhouse is sitting on top of a bunch of bark chips, so the plants are in 6 gallon buckets dug partly below the surface. I've actually wondered if I'm sometimes watering more than necessary, as I can't see how much is draining. I'd say I put an average of 2 gallons of water per pot. How important is it that I get the right amount of water in it as long as it has holes on the bottom?