Last year I HACKED a bunch of ground pots into my so called dirt. I tried to make them about 10 to 12" deep. The idea was that they would not blow over and would have some slow drainage (takes over a day to drain when I fill them with water). I then mix dirt, organic fertilizer, and peat moss back into the hole, sans the rocks. I worked.
This year I relocated the holes under the weeds and I found that the old growth that was there last year had not developed root more than about 3 to 4" deep, but width covered the hole. I placed vegi scraps on the bottom of the holes, filled them back in and added some organic fertilizer
This year I came across and six or so holes that I could only shovel, hack, swear past about 6 to 7" deep. I hit rocks of biblical proportion.
Question, should I give up on these holes as they are too shallow? Or since the plant's root did not go that deep, use them anyway?
Many thanks, -T