Many of our products are highly compatible, though may require a little extra math to make the dilution rates work. However, a few exceptions apply:
Liquid Lime, Miconutrients, and Yard Guard should never be mixed together or with any other products.
Liquid Iron should only be mixed with products in water, in a tank sprayer, never in concentrated form (as in a hose-end sprayer).
For specific precautions, please see individual product FAQs.