Roy; Interesting that one mans weed in another mans treasure. We can barely grow Asarum europeum here...evidently most of what is in the trade is from a cooler region. Asarum canandense does have weed status here, but that's okay since it is native. Tony Avent Plant Delights Nursery @ Juniper Level Botanic Garden 9241 Sauls Road Raleigh, North Carolina 27603 USA Minimum Winter Temps 0-5 F Maximum Summer Temps 95-105F USDA Hardiness Zone 7b email tony@plantdelights.com website http://www.plantdelights.com/ phone 919 772-4794 fax 919 772-4752 "I consider every plant hardy until I have killed it myself...at least three times" - Avent -----Original Message----- From: pbs-bounces@lists.ibiblio.org [mailto:pbs-bounces@lists.ibiblio.org] On Behalf Of Roy Herold Sent: Monday, July 11, 2011 9:52 PM To: Pacific Bulb Society Subject: Re: [pbs] Asarum canadense Tony and Dennis, I don't dare grow Asarum canadense in my garden due to it's invasiveness. Fortunately the seeds are decidedly ephemeral, so if Dennis sends any to the BX there is a limited risk of having them germinate and infest other gardens. As for Asarum europaeum, it is one of our most invasive aliens. Can't kill it, even the voles hate it. If hybrid vigor is real, I would be very wary of a hybrid with canadense. I like other plain old green asarums, and find the evergreen A. caudatum to be much better behaved than the dedidous A. canadense. The white flowered album type is nice if you are willing to look under the leaves for enlightenment. Another well-behaved but vigorous green one is the deciduous A. caulescens, honored by the Japanese nobility in their family crests. Then there are all those fancy ones, which are another story altogether... --Roy NW of Boston Tony Avent wrote: > John: > > One of my friends in Michigan just found something interesting the other week. A nursery there is selling seed grown Asarum europeum...only the plants they are selling are obvious hybrids with Asarum canadense. Who knew? >