Possible cause 1: diseases
Ranunculus bushes are considered robust and less susceptible to Diseases. But these trees are not 100% immune from fungal and viral diseases. For example, it can lead to a disease of the Leaf spot disease come. This manifests itself in brown spots on the leaves.
also read
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If you can trace the brown spots back to a fungal pathogen, you should cut off the affected areas with clean wood shears and dispose of them. Any discolored leaves are also disposed of. If necessary, you can use an appropriate fungicide if that Cut as a measure shouldn't help.
Possible cause 2: disadvantageous location
Too strong sunlight, especially at lunchtime, can be Ranunculus to be bad. It is therefore advisable to direct this wood to a shady area Location ideally to be planted in a sheltered location.
The wrong substrate can also cause brown spots on the leaves. Is it too wet? Too condensed? Too calcareous? It should have the following characteristics to prevent stains:
- permeable
- slightly acidic to neutral
- low in lime
- sandy-loamy
- moderately moist
Possible cause 3: poor maintenance
Have you overfertilized your ranunculus? Or could it be that he is lacking in nutrients? Brown spots can be an indication of an unsuitable nutrient balance. If there is a lack of nutrients, you can act quickly by adding compost or other organic fertilizer to the ranunculus. In the case of over-fertilization, it is better to move the crop before it dies completely!
Even if the shrub suffers from moisture, its leaves can discolor and develop brown spots. The wetness in the root area often leads to rot. The roots slowly die off, the leaves are no longer properly supplied with nutrients, change color, dry up and finally fall off.
Tips
Watch your ranunculus! Often, brown spots on the leaves are only a temporary phenomenon caused by repositioning or stress.
