meh.... miracle grow organic potting mix, prolly the best they have for weed... stay away from anything that has moisture control or time release fertilizers, its too easy to over water and burn your plants. straight potting mix with no ferts is also a good choice, but you will be wanting to add bloodmeal for veg and bonemeal for flower.
as far as nutes, there line up sucks. no way around it. i was just there last night seeing if they had rolled out any new shit yet for spring season. nadda... the have some liquid nutes but there more for foliar feeding or lawncare rather than bud production.
i hate big box stores when it comes to soil and nutes and garden supplies, they suck ass at stocking anything worth a damn for what we do.
cant even find decent pots unless its like march, and then there only out for 2 weeks