I wish I had horse poop! Do have lots of chicken poop though haha the funny thing though is the best grass always seems to grow right in my garden gonna try to transplant it this year instead of digging it up. But it’s funny because mere feet away the grass is dead or just bad grass and we have to plant seed in many spots yet in the garden it does super well.The only thing I have a lot of is horse manure (or the neighbor's cow plops). Horse manure is not very high in nitrogen (4%). But it certainly keeps the planting areas real nice and soft and fluffy. And it breaks down nicely.