I'm curious how these behave for others. My 'Blue Butterflies' dies back to the ground completely each winter. Of course it sprouts again in the spring and grows quickly bigger and better than the previous season.
Last year I added 'Sunshine Blue' to my garden and noticed it's behaving more like a regular shrub. It's sprouting from last years stems and branches just like a shrub would do. Granted we had an incredibly mild winter, but is this normal in most cold climates? Or is there some huge difference in the parentage of these two? I'm not familiar with the Caryopertis species or hybrids.