Cool Using Horse Manure In A Vegetable Garden Ideas. Horse manure remains one of the best for vegetable gardens but only in its composted form. Horse manure has slightly more nitrogen than cow manure, perfect for growing big leafy veggies.

Try to use pots with holes in the bottom, so that the worms and microbes can. After a few years it will. Horse manure remains one of the best for vegetable gardens but only in its composted form.

