Your Kalanchoe plant has black rot in summer, but other people's Kalanchoe plants keep blooming. What's going on?

What should I do if Kalanchoe has black rot?

The temperature is high in the summer, coupled with continuous rain, the Kalanchoe in the house will easily turn black and rot if you are not careful!

Solution:

1. Partial black rot

Once you find that the Kalanchoe in your home has black rot, quickly find a pair of sterilized scissors and cut off the black rotted parts.

Use carbendazim or thiophanate-methyl powder and sprinkle it directly on the cut of the Kalanchoe. Do not let the Kalanchoe get in contact with water and soil. It will recover after a while.

2. Severe black rot

1. If the black rot of the Kalanchoe plant at home is quite serious, then you have no choice but to perform major surgery on it! First, observe whether the stems of the Kalanchoe are all rotten.

2. If it is confirmed that the Kalanchoe is seriously black rotted, dig it out of the soil and observe whether the root system is completely black rotted.

3. If the root system is black rot and can no longer be used, use a sterilized knife to cut off the intact part of the Kalanchoe 2 cm above the black rot part, and place it in a cool and ventilated place to dry it for a while.

4. Re-insert the intact part of the Kalanchoe into the soil to take root. If you use the soil that was used to plant Kalanchoe before, remember to put it in the sun first to kill the bacteria in the soil. Otherwise, it will be easy to be infected again after cuttings.

How to prevent longevity black rot?

Summer is the peak season for black rot of Kalanchoe. With high temperatures and frequent watering, it is unlikely to avoid black rot!

1. Leave branches for cuttings

If you are worried about the black rot of the Kalanchoe in your home during summer, you can cut half of the branches of different varieties of Kalanchoe before summer comes, place them in a cool and ventilated place, and wait until autumn to re-graft them. The branches of Kalanchoe have sufficient water content, so it is basically no problem to dry them for 1-2 months.

2. Soil culture to hydroponics

If the Kalanchoe at home is still a young seedling and there is no way to cut off half of the branches, it is better to directly convert the soil culture into hydroponics. This can greatly reduce the chance of black rot, so that the Kalanchoe at home can spend the summer safely.

3. Pay attention to water control

Generally speaking, the black rot of Kalanchoe at home is mostly caused by excessive watering. Flower lovers can water the Kalanchoe along the roots of the flower stems, allowing the water to reach the roots and ensuring that the surrounding soil remains dry. Because the water will gradually spread around, just keep the soil moist.

4. Shaving

In order to prevent black rot of Kalanchoe, you can shave the head of the Kalanchoe, leaving only the main stem of about 5-7cm, and cut off all the other branches and leaves. This will not only allow for ventilation, but also reduce water evaporation, which will definitely prevent black rot of Kalanchoe!

5. Sprinkle some wood ash on the surface of the pot

In order to prevent the Kalanchoe from black rot due to stagnant water, you can get some wood ash and sprinkle it around the edge of the Kalanchoe pot. Because wood ash has strong water absorption capacity, there is no need to worry about the longevity plant causing black rot due to overwatering. However, wood ash is alkaline, so you still have to be careful not to get it too close to the root system.

How to grow Kalanchoe in summer?

If you want to prevent black rot of Kalanchoe, you must make sure to take good care of it in the summer.

1. Ventilate frequently

The weather is hot in summer, so you must ensure that the Kalanchoe has good ventilation conditions. It can be placed in a well-ventilated corridor indoors. If conditions permit, you can use a small fan or air conditioner to blow it, but remember to open the window for ventilation after using the air conditioner.

2. Water less and avoid rain

If you can't control yourself and water too much, the longevity plant will definitely turn black and rot in minutes. In addition to watering less, it is also best to avoid rain, especially when it is sunny after the rain, as the Kalanchoe plant is more likely to suffer from black rot. Watering can be done after 6 pm.

3. Pay attention to shade

Although Kalanchoe can only grow well if it is exposed to enough sunlight, the sun is very strong in summer, so you still need to pay attention to providing shade. If you grow Kalanchoe on a windowsill, it is best to put up a layer of sunshade net. Of course, it is best to move it indoors to a place with good diffuse light.

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