Potassium permanganate is a universal remedy that is actively used in gardening to protect and strengthen plants.
Gardeners have been using this affordable product for decades to ensure their green pets grow healthy and bear fruit abundantly.
Anastasia Kovrizhnykh, an expert of the online publication "BelNovosti", a scientist, agronomist and landscape designer, told how to care for plants.
The principle of action of potassium permanganate on plants
Potassium permanganate has powerful antiseptic properties. When interacting with organic substances, it releases atomic oxygen, which destroys pathogenic microorganisms and promotes the healing of the root system of plants.
Thanks to oxidation processes, potassium permanganate helps plants better absorb nutrients from the soil.
Preparing a solution for irrigation
Preparation of the potassium permanganate solution requires special care. For preventive watering, a weak solution of pale pink color is used, which is prepared at the rate of 1 gram of crystals per 10 liters of water.
In case of disease control, the concentration can be increased until a rich pink hue appears.
Vegetable crops that require irrigation with potassium permanganate
Tomatoes respond especially well to watering with a solution of potassium permanganate. The treatment helps prevent the appearance of black leg in seedlings and protects adult plants from late blight.
Cucumbers also respond positively to this type of watering, which protects them from root rot and powdery mildew.
When watered with potassium permanganate, potatoes become more resistant to various tuber diseases.
Flowering plants and potassium permanganate
Roses receive additional protection from fungal diseases with regular watering with a weak solution of potassium permanganate.
Peonies develop better and bloom more abundantly after preventive treatment. It is recommended to soak bulbous plants in a solution before planting to prevent rotting and other diseases.
Rules for using the solution
Watering should be done in the evening or in cloudy weather to avoid leaf burns.
The frequency of treatments is once every two weeks for prevention, in the presence of diseases the frequency can be increased to weekly. It is important to observe the dosage and not allow the concentrated solution to get on the leaves of the plants.
Houseplants and potassium permanganate
Violets and other indoor flowers can be occasionally watered with a weak solution to prevent root rot.
Orchids are particularly sensitive to the concentration of the solution, so the weakest solution of pale pink color is used for them. Palms and ficuses allow more concentrated watering, which helps to combat pests in the soil.
Restrictions and contraindications
There are plants that react negatively to watering with potassium permanganate. These include cacti and most succulents that are sensitive to excess moisture. Plants with a delicate root system can also suffer from a too concentrated solution. Azaleas and rhododendrons do not tolerate treatment with potassium permanganate due to the characteristics of their root system.
For reference
Potassium permanganate is potassium permanganate, potassium salt of permanganic acid. Chemical formula - KMnO4. It is dark purple, almost black crystals, which when dissolved in water form a brightly colored fuchsia solution.