FORUM MEMBER TERRYK IS SO RIGHT TO ASK: Whether or not we can add weeds to our compost heaps without risking weed-filled finished compost is a confusing topic. Won’t all their seeds sprout, or runners survive–especially in a slow-cook, not-so-hot heap? This week, we have the answer in the Urgent Garden Question Forum…thanks to some advice from our English gardening brethren (and a couple of giant plastic bags). Find out how it all works right here.
from the forum: can i compost weeds?
July 30, 2010
while you’re at it: fall compost care 
I’ve been busy back at wok but thanks for the info. The bagging method sounds great! I’ll put it facing a south wall and cook them to death for sure!
Thanks for this post. I’ve been wondering about this! I’ve been throwing my weeds out.
If I didn’t compost weeds, I would have very little compost. My “method” is to just pile it all up and let it sit. Weed seeds are not killed so I have to smother the compost with mulch when I use it, but I have never had a problem with Canada thistle growing from the compost, so it must rot well.
Do you put holes in the bags for water drainage or set them out as is to “cook”?