Being a hardy plant it does not require care in fall (protection against the cold, for example) but one would do well to prune the plant to ground level and discard the debris to eliminate the risk of fungal spores that often cause powdery mildew. So there is possibly no harm if you do nothing; possibly no regrets if you prune.
Good point, Tobey.
Being a hardy plant it does not require care in fall (protection against the cold, for example) but one would do well to prune the plant to ground level and discard the debris to eliminate the risk of fungal spores that often cause powdery mildew. So there is possibly no harm if you do nothing; possibly no regrets if you prune.
Thanks for your question!