Assess your rose bush to determine which flower heads are beginning to wilt or lose petals.
Start at the head of the plant and work backwards down the stem until you find the first five-leaf cluster. There will often, but not always, be a three-leaf cluster before this point.
Cut the stem 1/4 inch above the five-leaf cluster, using your pruners. Cut at a 45-degree angle to minimize the risk of diseases and other pathogens finding their way into the rose bush.
Repeat this process with all stems that have wilting flowers connected to them.
Place all cut stems and flowers into your bucket or plastic bag. Dead petals around the bush can encourage mold and other detrimental issues for your rose.
Deadhead the Midnight Rose once weekly, or as often as possible.