I am attempting to grow a cherry tomato plant in a 5 gallon bucket. The recipe calls for equal portions of perlite, compost, and peat moss. When I mixed the ingredients together, I used equal portions of perlite, sphagnum peat moss, manure, and a slightly smaller portion of organic potting soil. Will this mix harm my tomato plant? Will adding peat moss as a mulch help? What should I do, if anything? Thank you!