I have grown my own carnations plant do I prune then back to make ?

https://m.wikihow.com/Pinch-Carnations Donald this website gives you all the information you need good luck

Hi Donald. Cut back the stems of the carnations to approximately 3 inches above the soil level in the middle of autumn. Waiting to cut back the blossoms will give the carnations time to seed. Then you can add 2 or 3 inches of shredded mulch over the carnation planting area after waiting for the ground to freeze completely (this may not be until late autumn or early winter, depending upon your growing region). I'm assuming you are preparing for the winter months. In the spring, as the carnations grow, cut back the 'leggy' stems as this will promote a bushy plant. Hope this helps a bit...

Continuous light pruning helps a plant to bush out. Do not take too much length off at one time.