My D. Bath's Pink are also huge, but they flower well and have been there for many years. I've never heard of it needing rejuvenation. How do other plants in the same bed do for you?

With a large patch you probably already have several stems that have layered themselves and may be dug up and started as new plants. If you pot these up now you could take out your old plants completely redo the bed with compost and transplant your saved new plants into the ground. This would give you a new bed with hardly any loss of bloom time. Al

lacevail, some of the plants there have been there close to nine years old so those are finally getting divided this fall. Others are newer and are blooming heavily.

caistoga, normally when I divide a plant, I discard the center as its gotten woody. I assume that not really the case with dianthus. I assume just pull apart sections and replant?