I was thinking about WS seeds again this year. I can't say I have had much luck before. I have one of those rolling covered shelves like you can get at Lowe's with four shelves. I may assemble it and wire it to the side of the house on the back deck (the wind blows it over every year), Then plant my containers but leave the lids off. When there are lids I forget to keep them moist. I can easily get at them and spray them to keep them moist. Mostly I have poppy seeds, but this year I also gathered many other seeds from my garden like goat's beard, columbine, nasty's etc.
