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What to Do About Root Rot in Lily of the Valley? Cause Analysis and Solutions

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Root rot is a common problem for lily of the valley (Convallaria majalis). How should you deal with it? It is actually not difficult. First, find the cause: if there is too much water, drain it promptly; if there is too much fertilizer, neutralize it promptly; if the situation is relatively serious, just repot it, cut off the rotted roots, then disinfect them, and plant it in fresh potting soil. However, if the situation is very serious and most of the roots have rotted away, it basically cannot be saved.

I. Causes

1. Too much water

This is the main cause of this problem. Once there is too much water and it is not drained promptly, it accumulates in the soil and forms standing water. Once standing water forms in the potting soil, it causes the root system to be soaked in water; the roots find it hard to absorb oxygen from the water, so they carry out anaerobic metabolism and produce a large amount of ethanol.

This method is not only inefficient in energy production, but the large amount of ethanol produced directly damages the plant's root system and causes it to rot.

2. Too much fertilizer

Besides water, excessive fertilizer can also trigger this problem. This is because fertilizer that is too concentrated changes the osmotic pressure of the potting soil, making it difficult for the plant's roots to take up nutrients.

II. Solutions

1. If the cause is water, we can place it somewhere where the water can evaporate quickly. In addition, we can raise the flowerpot so the water drains out faster. After handling it, be careful to control the frequency and amount of watering; it must not be too much.

2. If the cause is fertilizer, we can try using some substances to neutralize it, consuming the excess fertilizer through reaction. After handling it, be careful to control the amount of fertilizer added; it must not be too much.

3. If part of the roots have already rotted, we can deal with it by repotting. First take the plant out of the soil, then clean off the surrounding soil, then cut the rotted parts short, and afterwards disinfect it. If the degree of damage is relatively high, we should bury it in wet sand, then plant it again; only in this way can it grow new roots.

At the same time, we still need to deal with its branches and leaves, because too many branches and leaves do not help its recovery, so leaving only about 10 percent of the leaves is enough. While it is regrowing, we must not fertilize it. We should also loosen the soil regularly, and it is best to keep it indoors so it does not come into contact with rain; otherwise, its roots will be damaged again.

4. If most of the plant's roots have all rotted away, it is very hard to save, and it is recommended to give up on it directly.

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