I take 'semi-shade' to mean that the plants don't get exposed to the full sun for long periods of time. A north border sounds OK as it will still get overhead light.
Were you up in Galloway, Bornagain, or did you get them mail order. We were priveleged to see a large display of them at Gardening Scotland the week after they got their Chelsea award.

Thanks Bulba, I sent off for them last year plus some viola conutas. I was very pleased with the size, quality and service and put them in my blog where I was hoping to borrow someones greenhouse. I think it's important to say when good service has been given as well as the reverse. I wish I had seen that display at Gardening Scotland, sadly, I haven't yet seen them in the flesh yet. Still won't be long now:-)

lovely flowers. don't forget to look at the reverse of the petals. Media photos after Chelsea just took it face on and did not do it justice.

It was the reverse that attracted me:-)