Buckets or ground?

Yeah sounds good to me, I am putting a few autos outside this yr since im running so late but im also trying to figure out if I should use a bed or I want to use the 3 gallon air pots and maybe bury the pots in the ground.. Im not sure about what soil to use either since these aren't going to get ALOT of attention because they will be out in the woods miles from me.. So maybe go 2-3x month max so im trying to figure out the best method also.. How to plant buckets bags just raised beds im sure and def not sure on the soil.. Inside I use PH perfect Advanced Nutrients and Bricks of the coco and perlite 3x perlite 1x coco.. Yes I watered often but I was very successful will that mix but like I was saying I wont be able to water all that often or feed so please let me know what you suggest..