This species har grown in my green house for years. 2019 I cut a branch of it, rooted and plated it outside on the south slope. At least this relative soft leaved evergreen survived its first winter outside. It can tolerate temperatures down to -20C, but normally its northernmost hardiness zone in Europe is 6. And in Finland that zone doesn't exist. So I'll keep this plant as an experiment and the big mother-bush may stay inside the green house by far.
- terojtaipale