Knockout roses are some of the new age of self cleaning roses which means you do not have to deadhead them to get new buds and blooms to come on. If you do pinch off the dead blooms, do so very close to the bottom of the spent bloom so as not to take a chance on pinching out the area where the new buds will form.
Answered on May 22, 2015
Was this answer useful?00
Looking for more?
here are more questions about...Hyacinth Plant