I do nothing but container gardening. If your plant is going in a pot use potting soil only. There are additives you can use like perlite, etc., but I've never found them necessary. I do use a starter fertilizer for cuttings and seeds. Fertilizer every six months or once a year depending on the plant. The good potting soil or potting mix will have lots of stuff in it, but no dirt from the actual ground - not ever. Actual ground soil will just clog up the works.
