Why not try composting? A couple of weeks in a compost bin and your stuff will be unrecognizable and you'll have some nice soil additive for other gardening possibilities. I put roots, stems, left over leafage etc. in the bin and stir it up occasionally for excellent compost for outdoor plants.
Growing weed has made me a better vegetable gardener and no worries about the garbage man finding anything.
Just another option.

Later