Experts and BHG readers answer.
Rose Bush Pruning
Thanks for writing. It depends on the type of roses you have and how vigorous they are. Many people in your area cut their hybrid tea, floribunda, and grandiflora roses back to about 10-12 inches tall every year to encourage healthy new growth. You can also do this with some types of shrub roses.
---Justin, Senior Garden Editor, BHG.com