Not all evergreens do well in my garden, but I have not had any problem with Mal, it has gone through at least one winter with below 0 temps. The flower size and plant height definitely reach stats. It always blooms well in my garden, but no where near the 35 to 40 bud count stats call for. It has multiplied modestly, but I don't really want a plant that multiplies really fast and requires regular division.
