Seconding this. This is my second year using compost, and this year I tried to only use the composted soil from last year, made from grass clipping and mostly-m

Seconding this. This is my second year using compost, and this year I tried to only use the composted soil from last year, made from grass clipping and mostly-mulched leaves that over-wintered in the pile. There is crap sprouting up everywhere because my pile did not get hot enough to kill the seeds. Tomato plants are sprouting up in every single place I've put down the compost. Last year, it was pumpkins - I left some compost on a tarp to dry out, and forgot all about it, and when I came back, mystery plants sprouted up - so I replanted them in the front yard, and was rewarded by pumpkin plants that completely took over. And I do mean rewarded - it looked great, passers-by would comment on our pumpkin patch, and we got something like a dozen pumpkins out of the deal for halloween.