Growing herbs and onions in metal tubs

Question

I am to plant herbs and various onions and peppers in metal wash tubs and buckets. Before planting seedlings and/or small plants I’ll have about 6″ of river rock in the bottom with Miracle Grow soil om top, about a foot or so. Question is, with drainage rocks will it still be necessary to cut or drill drainage holes in the buckets before filling?

Answer 1

Yes, you will want as much drainage as possible. It will be best to use an organic potting mix with amended compost, or other synthetic feed WITHOUT slow release nitrogen.