Winter care for perrenials
I would like to know how to prepare the following plants for winter (i.e., cutting back or not, insulating against the elements, covering with leaves or snow etc.) Here are the plants which were planted this season;
1)Philadelphus v. 'snowbelle'
2)Raspberry bush (what strain I do not know)
3)Aster alpinus 'Dark Beauty'
4)Syringa patula 'Miss Kim'
This winter, without leaves on the trees, they will be in full sun if not covered with snow.