When they were small enough, in 5 gallon containers, I was lugging them around the yard, chasing the sun. When they finally went into the grow bags in early July, they were stationary and started getting the shorter period of direct sun. We planted them in the bags, filling the bottom third of the bag with a combination of nutrients and Roots 707 planting mix, put about an inch or two of straight planting mix between the bottom of the root ball and the mix, then filled the remainder of the bags with the 707. Only added a little bit of horse manure since then.