Weed seeds in leaf compost

QuestionsHow to growTrees and ShrubsWeedsWeed seeds in leaf compost
Ros Hamilton asked 13 years ago

I have a huge heap of leaf compost from last years leaves. I used composter and it has worked a treat. The trouble is, when I used the previous years leaf mould on the garden, I got thousands of tree seedlings growing plus a few other weed seeds which had invaded my heap! Is there some chemical I can use on the heap to kill the seeds before I use the leaf mould in the garden? Would something like Roundup be suitable? I don’t want to kill the plants in the garden!

1 Answers

Gerry Daly Staff answered 4 years ago
If a compost heap gets hot enough, it will kiil weed seeds but this does not always, or even often, happen.

Mix some green material with the brown to increase heat.

Try to avoid picking up the tree seeds to start with.

There is no chemical to add.