Roy: We have grown Sinningia leucotricha in the ground since 2004...in that time, we have only had two winters with single digit lows below 10F, 6F and 9F. I have serious doubts that it would go much further north, but then we get surprised every year. 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: Saturday, June 19, 2010 9:45 PM To: Pacific Bulb Society Subject: [pbs] Sinningia Pollination, was Sinningia tubiflora hardiness Some years I see lots of seed set on my venerable (>20 year old) Sinningia leucotricha, some years none. In the greenhouse, outdoors, doesn't matter. This year the old plant is spending the spring in the greenouse a couple of feet away from fan that is running all the time to keep the air circulating. I happened to notice today that literally every flower had produced a fat seed pod. A couple of other plants, seedlings from the older one, were barren. They were just outside of the bulk of the air flow from the fan. Is it common for sinningias to be wind pollinated, or was my fan just acting like a giant bee? And who was it that said Sinningia leucotricha was hardy? Do I dare try one outside? --Roy NW of Boston