Posted: 16/04/2014 at 19:03
I regularly divide Heucheras......anytime almost is ok except for depths of winter. Heucheras seem to rise out of the ground so deep planting divided portions grow away well. I cut all woody pieces back now too.
Vine weevil? I routinely water with vine weevil control every year.....twice a year, spring and autumn. A simple test is to gently pull the plants. If they resist being pulled up they are prob vine weevil free. If they come away without roots hunt and destroy vine weevils and sift through the soil. And still treat the soil even if apparently clean.