I just make several trips to my patches and look for plump berries,You can tell by looking that they have grown as much as they are going to.I remove these tops at ground level and put them in a plastic grocery bag being careful not to mangle them up. I get them home as soon as possible and put them in my spring water .I dont think it would be a good ideal to put them in city water,I don't have that anyway. I place them on a table near my window and wait.I put some in friday and have had 15 or so berries turn red,I just rotate them toward the light from the window.in a day or tow more will turn red.I have had plants on the table for as much as three weeks.Yes I do lose some,a few dry out a few dont turn red.I figure thats better than losing them all. As far as stratifying. I have learned to bury my seed where they is a good healthy ginseng patch.I don't dig it up til november. I float test and always have grinning seed. The location of where it is planted seems to make the big difference in getting three leafers to come up. I am sure my method is not the best but it works for me.I will try and post some pictures later. Also this may be illegal,actually it is in NC.I have been told. But Its my land ,I planted it ,I take care of it. I will not let the state cause me to lose my investment. I started planting sane with the ideal that I could put my kids through school What a fool I was.Ten years later and still I am ashamed to sell these roots most are so small.Maybe i can use it to help my grandkids.lol