The Peters Professional 10-30-20 Peat-Lite Plant Starter Fertilizer (E99350) is a water soluble fertilizer that is best utilized during transplanting, before bloom inception or when higher phosphate is necessary. It works effectively on virtually all types of flowering material for developing bud count, bud set, and the size and color of flowering. It is intended for water types 2, 3 and 4. The fertilizer contains 10 percent nitrogen, 30 percent phosphate, 20 percent potassium and other essential micronutrients.
This Peters 10-30-20 is a little hard to find. There are a few hydroponic supply houses in my area but none carry the Peters "peat-light" line of formulations. Im not a hydroponic grower but i do a lot of transplants from my nursery to field. This formulation is ideal for early transplant growth on drip line.
I do find DoMyOwn to be a little pricee but I guess if you cant get it elsewhere....?
Can I use Epsom salt along with Peter's Professional 10-30-20 fertilizer?
It would not be necessary to add Epsom salt when fertilizing with Peter's Professional 10-30-20 because the product already contains magnesium in it. Magnesium is essential to plant development to help the plant produce chlorophyll. If you feel like you absolutely need to use Epsom salt, we would recommend to do a soil test first. Soils with a pH above 7 and soils high in calcium and potassium also generally have low magnesium levels. Calcium and potassium compete with magnesium for uptake by plant roots, and magnesium often loses. Sometimes, a soil test will show adequate magnesium levels in soil, but a plant grown in that soil may still be deficient because of that competition.