Yes they are the woven nylon / plastic / whatever bags. Mine stand in the concrete slabbed utility area and I still get worms in once the leaves start to break down. Don't know quite how they get there - can only think that worm eggs are maybe raked up or mowed up when I'm clearing or chopping the leaves.
I think they do a job in the breaking down process. If you'd like some - put a shovel full of decent border soil in once the leaves start breaking down.
I actually start putting mine into the compost bin (layered with grass cuttings) once they get to that stage (usually late spring). That way there's usable compost / leaf mould mix by next autumn and the builders sacks have been packed away by high summer.
Heaven is ... sitting in the garden with a G&T and a cat while watching the sun go down
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I think they do a job in the breaking down process. If you'd like some - put a shovel full of decent border soil in once the leaves start breaking down.
I actually start putting mine into the compost bin (layered with grass cuttings) once they get to that stage (usually late spring). That way there's usable compost / leaf mould mix by next autumn and the builders sacks have been packed away by high summer.