What causes yellow leaves of Clivia? How to prepare soil for Clivia

Many friends like to grow Clivia, but they always find that it is becoming less and less vigorous. Today we will share with you the tips for growing Clivia, which is mainly related to its characteristics. Clivia is a moisture-loving plant and requires a relatively high humidity in the growing environment. Good light is an important condition to ensure that Clivia flowers are large and colorful. Do you understand?

Contents of this article

1. What causes the yellow leaves of Clivia?

2. Preparation method of Clivia miniata soil

3. What are the taboos for growing Clivia in winter?

What causes yellow leaves of Clivia

Reasons why Clivia leaves turn yellow:

1. Temperature

The suitable temperature for Clivia to grow is 15-25℃. The temperature difference between day and night is 8-12℃, which is most suitable for the growth of Clivia. In summer, when the temperature exceeds 30℃ for a long time, it will enter semi-dormancy. At this time, if the air humidity is lower than 60%, the leaves of Clivia will turn pale yellow and even wilt; if the humidity is higher than 90%, the stems and leaves will grow long. In winter, when the temperature drops below 8℃, Clivia basically stops growing. If the temperature drops below 6℃, frost damage will occur, causing the leaf tips and edges to turn green and yellow, and even yellow-white necrotic spots to appear.

2. Humidity

Clivia is a moisture-loving plant and requires a relatively high humidity in its growing environment. Its most suitable relative humidity range is 70% to 80%. In this humidity environment, the leaves of Clivia are tender green, with clear veins, short, wide, and neat leaves, and have high ornamental value. If the potting soil is too dry for a long time and the temperature is high, the leaves will easily turn yellow. However, long-term excessive watering can easily lead to hypoxia, hindering the normal breathing of the plant, causing the roots of Clivia to rot or even die.

3. Nutrition

Clivia likes loose and fertile sandy soil. Soil compaction and insufficient fertilizer supply will cause the leaves to turn yellow and affect flowering. Generally, fertilization is done in spring and autumn. Rot-resistant leaves must be fermented before use. If not fermented, the roots will easily burn. Clivia must be re-soiled once a year. Generally speaking, the potting soil should be leaf mold, which has good air permeability. Especially in summer, thin fertilizers should be applied frequently, and fertilizer water should not be dripped onto the leaves, so as to prevent the occurrence of peeling spot disease.

4. Lighting

Clivia is a semi-sun flower. It prefers relatively weak scattered light and cannot tolerate strong light. Excessive light can easily cause sunburn. In mild cases, the leaves turn from green to yellow, and in severe cases, the leaves become dehydrated and die. Short days in winter and spring are more conducive to flowering. Good light is an important condition to ensure that Clivia flowers are large and colorful. However, if the light in the place is too dark and the light is insufficient for a long time, the leaves will lose their luster, the old leaves will be dark green, and the new leaves will become thinner and yellow or yellow-green (yin yellow). At this time, the Clivia should be moved to a place with slightly stronger light or supplemented with light. The leaves of Clivia are phototropic and should be raised towards the light to maintain the shape of a line when viewed from the side and a fan when viewed from the front.

Clivia flower soil preparation method

1. Clivia's specific requirements for soil include fertility, looseness, good air permeability and water permeability, and comprehensive nutrition.

2. The main raw materials used are leaf mold, river sand, slag, horse manure, etc.

3. The specific preparation method is to mix larch needles, garden soil, compost, cake residue, river sand in equal proportions as its culture soil.

4. Leaf care: Use half leaf mold, add 30% of larch needles, and then add 10% each of bone meal, slag, etc.

5. Root care: use 30% leaf mold, 40% pine needles, 20% river sand, and 10% bone meal.

What are the taboos for growing Clivia in winter

1. Avoid constant temperature. When growing plants, a temperature difference is very important. Basically, plants without a temperature difference will not grow well. In winter, in order to keep warm, people often put Clivia in a room with a relatively stable temperature. In fact, this practice is not good for the growth of Clivia. In winter, when growing Clivia, the temperature should be controlled at around 23℃ during the day and 13℃ at night to maintain a certain temperature difference.

2. Avoid fire. In winter, because the temperature is relatively low, many people are worried about the growth of Clivia, so they try their best to keep it warm. People who have a stove often place it next to the stove. This is actually very detrimental to the growth of Clivia and may cause its leaves to turn yellow.

3. Avoid long-term light exposure. Clivia prefers light exposure. In winter, it requires sufficient light exposure, but it does not need long-term light exposure. Generally, it is sufficient to maintain an appropriate length of light exposure every day. Do not place it in a bright place for a long time, which will cause it not to bloom.

4. Avoid picking up arrows. In winter, be careful not to let the buds of Clivia be exposed to sunlight too early after shooting arrows, as this will easily cause the Clivia to bloom inside the leaves.

5. Avoid over-watering. In winter, you don’t need to water Clivia too much, because the temperature is low, evaporation is slow, and ventilation is poor, so water consumption is very slow. If you water too much, it will cause water accumulation and rot.

6. Avoid dry air. Dry air is very easy to occur in winter, so you should avoid this phenomenon. You can often spray water on Clivia to maintain air humidity. In addition, you can also often wipe the leaves with gauze.

7. Avoid using raw fertilizers. In winter, there is actually less fertilizer available, but some people think that it is okay to apply raw fertilizers. In fact, this is not the case. Although the temperature is relatively low in winter, it is enough for raw fertilizers to ferment, and the heat generated will burn the roots.

8. Avoid cold. In winter, Clivia should be protected from freezing, because it may be frostbitten when the temperature is below 4℃. When it is frozen, it should be allowed to recover slowly.