My technique for stratifying seed involves sowing them in a plastic flat and sterile potting medium, placing the flat(s) on bare soil, placing window screen across the flats, extending well past the edges, and covering the edges with garden soil. This effectively keeps out most insects, mice, voles, birds, weed seeds, etc. it shouldn't be surprising that rodents are too stupid to back up six inches to start digging. Tim in Lancaster PA > > The fact that the window screens also deter pesky birds & squirrels is just a > bonus. It never crossed my mind they were deterring weeds too! > > Dennis in Cincinnati > _______________________________________________ > pbs mailing list > pbs@lists.ibiblio.org > http://pacificbulbsociety.org/list.php > http://pacificbulbsociety.org/pbswiki/