Llama manure, a.k.a. llama beans, a.k.a. black gold, is the best natural fertilizer you can get for your garden. You can even grow your plants and straight manure and it won't burn them, but they will grow like crazy.
$15 for a 5 gallon bag, or if you want to come fill your own, $10 to fill the first 5 gallon bucket (bring your own bucket), plus $5 for each additional bucket. If you want it by the truckload, I can dump it with the tractor.