Yellow leaves on raspberries indicate an iron deficiency. Under the so-called Plants often suffer from chlorosis due to an incorrect pH value.
raspberries and other fruit representatives unfortunately get yellow leaves again and again in the middle of the season. Chlorosis, also known as chlorosis, is caused by a lack of chlorophyll. However, the green dye is essential for survival, as this is where photosynthesis takes place. Chlorosis, which is usually caused by iron deficiency, should therefore be better treated.
Preventing chlorosis in raspberries
There are a few different types of chlorosis, but they all have one thing in common: the leaves turn yellow and can also die off over time. Raspberry bushes with chlorosis usually have a reduced yield, which is of course very unpleasant. In addition to an iron deficiency, a magnesium deficiency is often to blame for the yellow leaves in raspberries.
In most cases, an incorrect soil pH value is responsible for the lack of iron and magnesium. The nutrients are actually present, but the plant can no longer absorb them sufficiently. The pH value in the soil should therefore be measured as a check. There are many test sets, which are not expensive and handling is easy in most cases. If the pH value is above 6.5, this should also be Epsom salt or rhododendron soil be lowered to 5-6. The required amount of Epsom salt is always stated on the packaging. Incorporating compost doesn't hurt either. This loosens the soil and prevents waterlogging. Waterlogging can also be responsible for jaundice.
Treating and combating chlorosis in raspberries
In very few cases is there an actual deficiency of iron and magnesium. However, if the pH is in the right range and the leaves are still yellow, a real nutrient deficiency is really the culprit. Fertilization can help here. A high-quality long-term organic fertilizer like ours Plantura organic universal fertilizer is well suited for this. The fertilizer should definitely contain magnesium and chelated iron (note: There is no chelate form for magnesium). The so-called chelate makes it extremely easy for the raspberry to absorb iron. Incidentally, liming raspberries is generally not recommended, as this means that the iron is absorbed much more poorly by the plants.
More information about Fertilizing raspberries can be found here in our special article.
