You don't need a shredder for leaves if you have a lawn mower. I have used mine and got very nice shredded leaves.
I mulched my garlic with pine needles and leaves with good results. Grass clipping should work well too except that if they are too thick they could actually not allow the garlic to grow through it. The clippings become very compacted when too thick. That is why I use them to prevent weeds from growing in my garden.
|