What to Do About Root Rot in Clivia? Cause Analysis and Solutions

Clivia root rot can occur in all four seasons, but it is most common in summer, mainly due to the specific environment of high temperature and high humidity and the grower's lack of care knowledge. The main causes of Clivia root rot and control measures are introduced below.

Clivia root rot caused by improper flower pot selection

Nowadays some people, for the sake of appearance, grow Clivia in ceramic pots, plastic pots or purple clay pots, which have poor air and water permeability. After watering in summer, because the pot has poor permeability and air circulation is difficult, root respiration is blocked, causing root rot.

Clivia root rot caused by improper watering and fertilizing

Some people, although they plant Clivia in clay pots, fear that it lacks water and fertilizer in summer, so they water as soon as the pot surface soil is dry (in fact the pot soil is still wet) and often apply concentrated fertilizer. Combined with the rapid reproduction of certain harmful bacteria in summer, this causes root rot.

How to prevent Clivia root rot?

For Clivia, whether in the vegetative growth stage (from seedling stage to before flowering) or the reproductive growth stage (after flowering begins), the suitable growth temperature is 15-25 degrees. Generally, home cultivation of Clivia lacks the necessary environmental equipment, so we should proceed from the actual situation. In the hot and humid summer, in addition to taking measures such as shading, ventilation and cooling, we should also, from the perspective of controlling its growth (keeping the plant in a dormant or semi-dormant state, which is beneficial to its growth and development in other seasons), strengthen root care in summer.

1. To grow Clivia, use clay pots.

2. Do not fertilize in summer, or apply only a small amount of dilute liquid fertilizer.

3. Control watering in summer, and insist on never watering until the soil is completely dry. To prevent excessive water in summer from suffocating the roots, you can use a large wooden box filled with wet sawdust and bury the flower pot in it (do not water inside the pot), then check regularly and spray water again when the sawdust is dry.

Emergency measures for Clivia root rot

If root rot occurs accidentally, rescue must be carried out quickly. First take the Clivia with rotten roots out of the pot, remove the soil, cut off the Clivia roots, wash the roots with clean water, then soak the Clivia roots in a potassium permanganate aqueous solution, then wrap all the leaves with white paper, exposing the roots, face the roots toward the sun, and sun them for half an hour, using ultraviolet rays to kill pathogens. After the above treatment, if only a few roots of the diseased plant have rotted, it can be planted directly into sterilized nutrient soil, watered sparingly for the first half month, and growth can recover after one and a half months; if more than half or all of the roots of the diseased plant have rotted, it should be planted in a pot filled with fine sand and placed in a shady place to wait for new roots to sprout. After about 2 months new roots grow, and after replacing the nutrient soil, normal management can be carried out.

What to Do About Root Rot in Clivia? Causes and Solutions for Clivia Root Rot

What to Do About Root Rot in Clivia? Causes and Solutions for Clivia Root Rot

Root rot can be called a life-or-death calamity for plants. How many flowers and plants have just withered away under root rot? I believe many flower lovers have experienced this deeply, but because root rot occurs in the soil it is not easy to detect. However, as long as it can be detected, it is not too late. As long as you master the correct treatment method, your flowers and plants will definitely survive tenaciously!

When Clivia roots are damaged, the leaves will send signals and gradually turn yellow. If not treated in time, the whole plant will rot. But root rot is not as simple as rinsing with water. Today the editor will specifically introduce how to deal with Clivia root rot!

Clivia root rot

Causes of Clivia root rot

Unsuitable environment

With high temperature, high humidity and poor ventilation, Clivia's fleshy roots rot very easily.

In addition, with too much water, the moisture in the soil is difficult to evaporate for a long time, resulting in poor air permeability. The roots are soaked in water for a long time, causing the roots to discolor and rot.

Improper fertilizing

Too much fertilizer: if the fertilizer in the nutrient soil is not fully fermented, it generates heat and burns the roots, causing root rot. Improper fertilizing during the growing season, with too large a fertilizer amount, causes the fertilizer to contact the roots, leading to root burn, affecting the roots' absorption capacity. The root tissue is destroyed and the roots rot. Note that you should apply thin fertilizer frequently.

Root injury

When roots are injured externally, during repotting or division, collisions may cause roots to break or rot. The rotten fleshy roots must be thoroughly removed, then coated with charcoal or fine stove ash and dried, and then earthed up and potted, to prevent the injured roots from directly contacting pathogens in the nutrient soil and rotting.

Unsuitable pot soil

Poor air permeability: using ceramic pots, plastic pots, etc. leads to poor air and water permeability of the pot soil and root rot.

Poor soil quality: bacterial diseases erode the fleshy roots, causing decay.

Symptoms of Clivia root rot

Root rot symptoms in large Clivia plants

In adult large Clivia plants, if individual roots rot, it shows as dry tips on a certain leaf, blackened leaves, or scorched and falling leaves. Corresponding to the above causes of Clivia root rot, only by finding out why the Clivia has become like this can root rot treatment be carried out.

Root rot symptoms in small Clivia plants

Young small Clivia plants have few and extremely delicate roots. If root rot occurs, the roots will quickly rot completely and the leaves will droop. Therefore, small Clivia plants need extra care from everyone.

How to deal with Clivia root rot

Adjustments in water and fertilizer management

Clivia should not be watered too much; watering should be moderate. Too much watering makes the nutrient soil's water content too high, with poor air permeability, and root growth cannot get enough oxygen, producing root rot. When watering, also note not to pour water into the center of the Clivia, to avoid water running along the stem to the roots and causing water accumulation. Watering is usually once every 2 weeks, along with fertilizing.

Treatment of pot soil

Nutrient soil bought from the market has poor air permeability, and the soil is either too raw or too decomposed. If the soil contains incompletely decomposed components, long-term watering and fertilizing in the pot soil will generate heat and easily cause root rot. Or home-mixed flower soil is rather sticky, with high water content and not easy to evaporate, and poor air permeability, so bacteria invade the plant through wounds, causing root rot. Therefore, the choice of flower soil before planting is very important.

For the flower pot used to grow Clivia, if its air permeability is poor, consider changing to a ceramic pot or a coarse pottery pot.

1. Take the Clivia with rotten roots out of the flower pot, gently remove the soil, then rinse the roots clean with water, and use scissors to clean away the rotten root system. Then coat the wounds with plant ash or fine stove ash.

2. Soak the cleaned roots in a 0.1% potassium permanganate solution for 5 minutes, then dip in a little sulfur powder or plant ash or carbendazim, all of which are acceptable.

3. Control water, place the Clivia in a shady place to dry for 1-2 [days], do not let direct sunlight hit the leaves, and it is best to cover the leaves with newspaper.

4. After drying, plant the Clivia in coarse river sand or sphagnum moss. Huahua used sphagnum moss~ After 15-50 days, plump white new roots can grow.

5. Note: Clivia root rot situations differ; in some cases the root system rots slightly, while in others the entire root system rots away (as shown below). If the entire root system has rotted, there is still a chance to save it. Refer to the root rot cleanup; after disinfection, insert it into plain sand to promote sprouting. Generally, after about 2 months it can still regrow roots.

What to Do About Root Rot in Clivia? Causes and Solutions for Clivia Root Rot

Clivia flowers are bright and colorful and have high ornamental value, but growing Clivia is not so easy and requires solid cultivation skills. If Clivia is not cared for enough, its leaves easily turn yellow. In addition, Clivia may also develop root rot. What to do about Clivia root rot? Below is an introduction to the causes and solutions for Clivia root rot.

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What to Do About Root Rot in Clivia? Improve the quality of the nutrient soil

Nutrient soil has poor permeability; the soil is either too decomposed or too raw. The oak leaves used before preparing nutrient soil must be neither too decomposed nor too raw. If raw oak leaves that have not been decomposed are used to prepare nutrient soil, after being put into a pot and fermented they will generate heat; however, if the oak leaves used are too decomposed and too little river sand is added, the soil will quickly turn to mud after being put into the pot. Under such conditions of sticky soil, high water content that is not easy to evaporate, and extremely poor permeability, root rot easily occurs. Many times bacteria enter through wounds, so when repotting, be careful not to damage the leaves or rhizomes. All the above factors will cause the root system to begin to discolor and rot locally, and in severe cases the entire root system rots completely in a very short time.

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What to Do About Root Rot in Clivia? Adjust the fertilizer amount and water moderately

Clivia should not be fertilized too much, otherwise heat is generated and the root system is burned, causing rot. Watering should also be moderate; too much will make the nutrient soil's water content too high, with poor permeability, and the root system will have difficulty breathing, producing root rot. Be careful not to water into the heart of the Clivia.

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What to Do About Root Rot in Clivia? Nutrient soil carrying bacteria and multiplying

In a high-temperature and high-humidity environment, prevent bacterial reproduction and pathogen infection. In this environment bacteria multiply in large numbers, directly invading the root system and causing root rot. Therefore, in the high-temperature seasons of summer and autumn, excessive fertilizing and watering easily lead to root rot disease. Strengthen cooling and ventilation, control mechanical damage caused by humans during high-temperature seasons, and promptly spray chemicals to prevent pests from biting, reducing bacterial reproduction and spread. Sometimes pathogens overwinter with diseased residues in the soil, so when changing soil in spring the flower soil must be sterilized.

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Control methods for Clivia root rot

During the Clivia planting process, observe frequently, and if root rot is found it should be treated immediately. Take the plant out, remove the rotten roots, rinse the roots with a 1% concentration potassium permanganate water for disinfection, or apply some charcoal powder to the affected area, and in a greenhouse use sunlight to dry the roots for about 30 minutes. If more than 50% or all of the roots have rotted, after treatment by the above method use river sand to promote rooting. The rooting promotion temperature should be higher than the usual temperature, generally controlled at around 22-30°C. In this way, after about 2 months new roots will grow, and then it can be transplanted into a pot with nutrient soil.

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