- leaf spot fungus
- leaf thickening
- yellow spot disease
- chlorosis
- damage from pests
- errors
- tips and tricks
Garden marshmallow (rose marshmallow) and indoor hibiscus are generally considered to be robust plants. Nevertheless, they can also be attacked by diseases, often favored by care mistakes. Once the diseases have been identified, they are easy to treat.

leaf spot fungus
You can recognize the leaf spot fungus by the irregular, brownish spots on the leaves. The affected leaves are removed. A special treatment is not necessary.
leaf thickening
Thickened leaf veins can occur in indoor hibiscus, bot. Hibiscus rosa sinensis. While they don't damage the plant directly, affected leaves don't look pretty either. The cause of this deformity is an incorrect location. If you place your plant in a warmer place, the thickening will recede on its own.
yellow spot disease
Isolated yellow spots on the hibiscus leaves indicate yellow spot disease. This viral disease can easily be transmitted to neighboring plants, so you should place the affected hibiscus individually until it has recovered. Affected leaves must be removed immediately and disposed of with household waste.
chlorosis
Yellowing leaves may be due to chlorosis. They are caused by a lack of nutrients and an unsuitable location. The hibiscus is often too dark and too cold, so a warm, bright place on the windowsill helps, but not in the blazing sun. Liquid fertilizer and, in the case of garden hibiscus, additional compost provide your hibiscus with sufficient nutrients.
damage from pests
Pests such as aphids and spider mites can also weaken the hibiscus. These usually suck on buds and fresh shoot tips and must be collected immediately. The plant is then treated with home remedies or special pesticides from the garden or hardware store.
errors
Supposed plant diseases often turn out to be avoidable care mistakes.
- If the hibiscus sheds its flowers, it is not a plant disease. That's more to do with
Lack of water, stress or moving the plant. - If the hibiscus droops or sheds its leaves, you should simply water it again. Especially the garden marshmallow suffers from longer, dry phases.
- Withered, curled and possibly yellowish leaves are caused by waterlogging. So that they don't
only forms, you always pour off excess water in the pot or saucer. On the other hand, they are
Roots affected by rot, only repotting helps.
tips and tricks
No matter what diseases your hibiscus is affected by, affected leaves do not belong in the compost. Viruses in particular could spread to other plants in this way. Instead, diseased leaves must be disposed of with household waste.