Thanks, Kousa. You'd think that trait would lead to speedier increase, but it's a really slow one. That's over 30 years of growth there (it's been moved a few times over the years, but has been in that spot for 7 years). It was a gift from another gardener, an elderly lady who lived near where I grew up, my first garden mentor. She'd been growing it for over 50 years at that time, and was no stranger to dropping big bucks for a single plant she couldn't resist- her family thought she was nuts for spending $50 on a single Iris, if they only knew how many of us there are! LOL
