The longevity flowers with rotten roots still burst into blossom after making this step.

The branches of longevity flowers have all blackened from the roots. How is it?

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After taking a look at your picture, the situation in which you grow with garden soil is root rot, and what you need to do now. Is to check if there are any fresh branches. If there is a quick cut down to soak carbendazim or mancozeb. Re-cutting the branches, do not keep all the flowers, there is still a chance of survival on the direct cutting, and now the rotten ones are worse. Want to cure is impossible, only cutting is the most reliable way. You still found this late, if you found that the bottom began to blacken, cut it off directly, cut all the upper branches and cuttings and still be able to keep many trees, and now it is already black to the top. There are not many fresh branches left. Basically, the whole plant is dead.

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The main reason for this situation is that your basin soil is impervious and does not dry for a long time after watering, resulting in black rot or poor ventilation. Anyway, the root system is rotten. The next time you plant longevity flowers, you must remember to use loose and breathable soil to do a good job of sterilization before planting, and you can use carbendazim to water thoroughly. If the indoor ventilation effect is very poor, regularly use Ling water once a month to irrigate the roots, so that it can be well prevented. The root system of longevity flower is very weak, it is the kind of whisker root system, the most afraid of soil consolidation, the most afraid of siltation, which is the main cause of his root rot.

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