Prune dead branches and diseased branches in time, and at the same time cut off some weak branches in the growth period, so as to avoid consuming excessive nutrients, unable to provide for other robust branches, which can promote the germination of new branches after cutting.
Because Dahlia has a long flowering period, and flowers open almost without interruption if properly maintained, it is necessary to prune and remove the remaining flowers in time to avoid wasting nutrients and affecting the opening of new flowers. If you want the flowers to bloom more brightly, you can leave the top and two side bracts, and cut off the lower bracts, which is conducive to supplying all nutrients to the upper bracts, so that the flowers will bloom big and brightly.
If there are yellow leaves or leaves that have been damaged by diseases and insect pests, prune them in time, or they will easily cause infection.
