Hey all I dug up a good amount of soil by a dense bed of natural plants outside and mixed it 50/50 with Orchid potting mix which has Miracle-Grow Continuous Release mixed in with it. It has .1% nitrogen content, .02% phosphate content (P2O5), and .05% soluble potash content (K2O). Will this be good enough to grow in? What other nutrients will I need to mix in with this for a good grow?