'Marin Glow' broke in half when it was being put into the ground here at the new location this past winter. So I quickly stripped the broken half of most of it's leaves and buried it in the ground at the same time. I had heard it was possible to root perennials this way in the winter time, and had success doing this with branches of lavender and lemon verbena. This is a photo of the growth from that broken branch! The flowers are past their dark purple blue stage and into the lighter phase already.