Answer: These plants will bloom on the previous year's wood, so the plant will not be forming new buds or more flowers to open this year. They will however form buds this summer to bloom next year. If you want to remove the spent flowers, that is fine. If you need to do any pruning or shaping, do it only immediately after bloom so that you are not risking removing next year's blooming wood. Never prune it in fall or early spring, except to remove winter damage.
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