Asked February 23, 2013, 3:31 PM EST

How to prune or is it necessary?

Larimer County Colorado

1 Response

Not necessary for the most part. If your Potentilla shrubs have gotten very large or have lots of dead stems, you can cut them down to an inch high in March. This "rejuvenation" pruning of multistem shrubs like Potentilla forces new growth from roots. Note that a rock mulch over weed fabric could inhibit new growth.