largest hole you can fill with good dirt 4x4x4 water the fuck out of them. Make sure you have good drainage in your holes. When your close to harvest you want to add sugar I'll even use molasis. and try to get them to have all day sunlight. I use organic ferts fish emoltion and shit but I'm in my yard so I dont have to worry bout criiters. gl hope in the short of it this helped just do me a favor and keep growing you'll get better at it every time