Thats the way i went this season and it looks like its working properlyRoots hate light and I believe you may have light penetration issues with a household white bag, a white grow bag may be differenent. Either way if your intent on growing in these bags at least dig holes for them to block out light and keep the roots cooler or better yet just dig holes and backfill with soil so if the roots want to expand they at least have native soil instead of a vinyl wall to hit.