|I called Territorial Seed, who cautioned that more than two inches of manure wouldn't break down enough to support planting in early April.
So we went out and had the pickup truck filled. What they gave us was steaming hot, mostly broken down with only a few horse apples left. It was exactly enough to spread out two inches over the garden area.
I posted on one website about my find. Another poster cautioned that some hay is grown with herbicides to keep the weeds down. Damn. I checked on local blogs, but no one mentioned a problem with herbicides. It was suggested to not eat any vegetables from the garden until the horse manure had at least 120 days to break down.
Given that what we got was probably at least a month old and probably older, that would support our April plant date. I plan to dig out the compost heap in 2-3 weeks, dump that on top of the manure and till it all into the top 6 inches of soil.
I also plan to do a tomato test with some seeds and some of the horse manure before I till it in. If the seedlings grow, there is no herbicide problem.
Never knew that gardening was so complicated.
A week later, the weeds we dumped the manure on top of are happily growing though the manure.