I kept some Mel's mix in a wheelbarrow from fall through winter, and because it didn't drain, the mix just sat in ice for much of the winter and water once the snow melted.

I put it into a 4x4 box with a plywood bottom with holes drilled in but the mix is still dark and feels cool, heavy and kind of wet. It's been a couple of weeks now.

What happened? Can I still plant in this mix? Any way to salvage it?

Thanks.