Easy to care for and robust, the dogwood is a popular ornamental tree in home gardens. The different varieties such as the flower dogwood and the cornelian cherry are not very susceptible to diseases. But if you notice yellow leaves on them, there is something wrong with the plants.
Why does the dogwood have yellow leaves?
The dogwood can get yellow leaves for various reasons. On the one hand, ainfestation with pestscan be the trigger. On the other hand, a lack of nutrients, a so-calledChlorose, can be to blame for the yellow leaves.
Can too dry soil also be the reason for the yellow leaves?
As with many plants,droughtnesscan also manifest itself in dogwoodin yellow leaves. Especially in hot summers, dogwoods may not receive enough water due to a lack of rain. Then the trees and shrubs, which are very bee-friendly, must also be watered sufficiently. If you want to replant dogwoods, pay attention to the ideal location. The plant feels most comfortable in partial shade.
How to treat a dogwood with yellow leaves?
Whenpest infestation, a radicalpruningdown to the he althy wood is important in order to be able to really thin out the crown and remove all the affected leaves and Remove branches. However, if dayfly moths have already laid their eggs in the bark, the plants can unfortunately often no longer be saved.
WithChlorose (usually iron chlorosis), not enough chlorophyll is formed for green foliage. Then the pH of the soil must be changed so that it is below 7.5. Magnesium or manganese are rarely missing.
Do pesticides help with yellow leaves on dogwood?
Plant protection products arenot helpful if yellow leaves have formed on your dogwood.
Tip
In order to prevent an infestation with pests that can also cause other damage, natural predators such as parasitic wasps can be used. These help with an acute infestation of mealybugs and, unlike chemical pesticides, do not spread harmful substances on the plants.
How can I avoid yellow leaves on dogwood?
The most important thing is to choose theright locationfor all varieties of dogwood. Only if it is not weakened by excessive sunlight and the resulting dryness of the root ball can the dogwood fend off possible pest infestation.
It is also important to ensure good soil for optimal nutrient supply. It must be permeable enough toavoid waterlogging Fertilizer does not have to be applied frequently, but is recommended once a year in spring.
Tip
Naturally yellow
Dogwoods are available in countless varieties, which differ from each other in their foliage color, among other things. The variety Cornus alba 'Spaethii', for example, impresses with green leaves that have a yellow border. This ornamental shrub is hardy and changes its color appearance in the cold season: instead of yellow leaves, the variety shows its beautiful dark red bark.
