[timcunningham]

Agree with Craig. To prove the point try putting earthworms in pure fresh manure, they will die.

If I had a source of fresh manure I would do the following: Mash the pellets up, let them "age" a bit, then mix in some peat moss, vermiculite, and a little pelletized lime. Pure manure alone gets quite compact, your roots needs air.

But to answer your last question. Is there any thing "wrong" with planting them in pure manure. Nope. Plants will grow and you will get maters. Is it the "Best"? No. But the "Best" means different things to different people.