Membrane only stops/slows weeds coming up and not those that self-seed in between. Stones and slate provide heat and dampness that is ideal for seed growth. As you have lots of seedlings it sounds like self-seeders to me and membrane will do nowt for that. They prick out easily and do it now before they flower and send more seed out. A lot of seedling will come out just by raking over the slate.
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Membrane only stops/slows weeds coming up and not those that self-seed in between. Stones and slate provide heat and dampness that is ideal for seed growth. As you have lots of seedlings it sounds like self-seeders to me and membrane will do nowt for that. They prick out easily and do it now before they flower and send more seed out. A lot of seedling will come out just by raking over the slate.
can I lay slate, if put membrane down without killing grass first