I watch a program called Gardener's World and I see that many gardeners in the UK grow a plant called Thalictrum "Elin". It looks like this might be hardy to zone 5 and with the micro-climate in my backyard I am thinking maybe it could be zone 5 conditions. But I can't find any information on the this plant in the U.S. - or where I could get seed or plants. I'd like to to try it - but can't source it. I am wondering if there is any way to source this plant. Bryan