The best pruning time of rhododendron is June-July in summer or11-65438+February in autumn, because the flowering period of rhododendron is April-May in spring every year. Pruning in summer is beneficial to saving nutrients for plants, and pruning in winter can make rhododendron spend the winter smoothly.

Pruning methods and matters needing attention of rhododendron;

1, cut off the residual flowers

When pruning azaleas in summer, you should prepare a pair of sharp scissors, disinfect them with alcohol cotton, and then cut off the residual flowers and stems of azaleas to avoid losing excess nutrients. Moreover, azaleas need to be treated with decomposed organic fertilizer to increase the number of flowers in the next year.

Step 2 cut off the fragile branches

When pruning azaleas in winter, it is necessary to cut off the weak branches, aged branches and withered branches with poor growth, so as to grow strong new branches in the next year, prune the branches and leaves of azaleas that grow too densely, increase the transparency and ventilation among plants, and make them grow healthily.

3. Preventive measures

When planting rhododendron, it is necessary to spray carbendazim on its fracture after pruning to disinfect rhododendron and prevent the plant wound from being infected with diseases and rotting. Moreover, it is necessary to move the azalea to a ventilated and scattered place to avoid direct light, so that the wound of azalea can heal quickly.