I wouldn't use soil with synthetic fertilizers already in it...
I've been using "Nature's Care Organic & Natural Potting Mix with Water Conserve"
It has Alfalfa Meal, Bone Meal, Earthworm Castings, Kelp Meal, Peat Moss, Coco Coir, Yucca, and Perlite.
And it is OMRI certified, so you know that it...