1、 Prune branches

Prune the dead and diseased branches in time. At the same time, cut off some weak branches during the growth period, so as not to consume excess nutrients and cannot be supplied to other strong branches. After cutting off, it can promote the germination of new branches

2、 Trim flowers

Because the flowering period of dahlia is relatively long, and if it is properly maintained, the flowers bloom almost without interruption, so it is necessary to prune and remove the remaining flowers in time, so as not to waste nutrients and affect the opening of new flowers. If you want the flowers to bloom more brightly, you can leave the top bud and two side buds and cut off the lower bud, which is conducive to supplying all nutrients to the upper bud and making the flowers large and gorgeous

3、 Trim blade

If there are yellow leaves or leaves after diseases and insect pests, they should be trimmed in time, otherwise it is easy to cause infection