On 20 Apr 2010, at 20:42, Diane Whitehead wrote: > Almost all western erythroniums do not increase except by seed, so the > hendersonii was doing OK. But if you look over enough wild ones, you will find isolated specimens that do multiply vegetatively. Further: I have been reliably told that you can propagate erythroniums by simply breaking the bulbs into several pieces and replanting. Erythroniums are in the Liliaceae, so it's very similar in spirit to propagating lilies from scales. -- Rodger Whitlock Victoria, British Columbia, Canada Maritime Zone 8, a cool Mediterranean climate on beautiful Vancouver Island http://maps.google.ca/maps/…