Content
- Rhododendron yellow leaves - what now?
- How do I save the rhododendron? What to do against yellow leaves?
- Pale rhododendron with uneven yellow leaves
- Even yellow leaves through alkaline soil
- Yellow-green to yellowish-white speckled leaf top
- Tips & Tricks
Rhododendron yellow leaves - what now?
Rhododendron is one of the most popular garden plants. Its compact growth, evergreen foliage and magnificent flowers conquer every hobby gardener. In order to maintain healthy growth of the bog plant, damage such as yellow leaves must be detected and treated in good time.
How do I save the rhododendron? What to do against yellow leaves?
Just like humans, plants also turn pale and yellow when they miss something or when they have illness. Yellow leaves and pale green indicate rhododendron for deficiency symptoms. Another sure indication of this is that rhododendron does not bud and does not flower.
Pale rhododendron with uneven yellow leaves
Pale yellow leaves with green veining on the evergreen leaves of rhododendron indicate a typical deficiency. Magnesium, nitrogen and iron deficiency causes chlorosis. It occurs in most cases at too high pH. As a result, the rhododendron does not absorb the iron in the soil properly.
In the short term Eiünger creates a remedy. Dissolve this in water and pour. In the long term, soil improvement to a pH of 4.0 - 5.0 plays an equally important role. This works best most rhododendron varieties can be propagated with a special soil for rhododendron. For ecological reasons, instead of peat, a mixture of garden compost, bark compost and wood chips compost is used. Mulching with bark humus with the addition of horn shavings as a nitrogen supplier, has also proven itself.
Even yellow leaves through alkaline soil
If the soil is not sour enough, this is also evident in yellow leaves. The roots grow into alkaline areas. This does not tolerate the plant and reacts with yellowish leaves. Simply replace the existing soil with a special rhododendron earth.
For strongly grown roots, the exchange of soil is difficult. Fill the special soil into a casting ring formed around the trunk. Through regular watering, the nutrients get into the deeper layers of the earth. So you supply the rhododendron with everything he needs.
Even if it takes some time for success to materialize, this measure will help in the long run. An additional advantage. So the shrub is not overfertilized. If you want to be sure from the beginning, you should plant the rhododendron right in this special soil.
Yellow-green to yellowish-white speckled leaf top
Leaf underside is noticeably brownish-black soiled. Sometimes slightly curled. Later the leaves dry up and fall off. Behind these signs hides the rhododendron bug stephanitis rhododendri.
It likes to infest plants in a dry, sunny spot. The Flava variety is particularly susceptible to this pest. In the months of May, June and July, it is advisable to check the underside of the leaves for infestation as a precautionary measure. If necessary, use an insecticide in good time in dry weather.
Tips & Tricks
In case of iron deficiency, many hobby gardeners swear by simply putting rusty nails into the ground. Just try it, if it really works!