I checked the Sissinghurst website this afternoon and couldn't find Baby Barn Owl - they have Gypsy Tart, though, which I like. I did find BBO on another (French) website - it's a Loic Tasquier (he's lovely, we've corresponded a couple of times - I'll ask him if any US seller stocks it).
Meantime, check this out:
https://uk.pinterest.com/ekate...
On a note of whatever-happened-to-my-self-control, I started loading Sissinghurst irises into a shopping cart... I'm waiting until tomorrow before I check out, to see if reason prevails.