Am I Supposed to Stop Feeding and Deadheading My Knockout Roses?
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Yes, as a general rule of thumb, we’ll stop feeding roses as well as deadheading once we get into November. We want the roses to finish their blooming, stop growing, and begin to shut down for the winter. Leaving the spent flowers on the roses, rose hips will form suggesting that the plant stop growing. For roses like Knock Outs, they are somewhat self-deadheading and may continue to flower very late into the season on their own. I’ve seen them with color early December. But stop feeding and stop deadheading once we get into November.
Yes, as a general rule of thumb, we’ll stop feeding roses as well as deadheading once we get into November. We want the roses to finish their blooming, stop growing, and begin to shut down for the winter. Leaving the spent flowers on the roses, rose hips will form suggesting that the plant stop growing. For roses like Knock Outs, they are somewhat self-deadheading and may continue to flower very late into the season on their own. I’ve seen them with color early December. But stop feeding and stop deadheading once we get into November.