how does one normally keep the group from getting "polluted" with self-sown seedlings? hello group, again! I remove all flowers as soon as they start to turn brown. To find a new snowdrop it is a case of walking through drifts. The unusual snowdrop most often stands out. I found 'yellow' snowdrops in 2002 and 2003 by doing this. Here is last year's http://snowdropinfo.com/nivalisxplicatus-yellow.ht…. The group have now been moved to two gardens in case something happens to the whole group. I also have a tall growing find which stands at 14 inches to the top of the ovary. http://www.snowdropinfo.com/nivalisxplicatus.html Mark N Ireland