How to care for clivia in summer? These methods you need to master
In summer, temperatures are high and sunlight is intense. If care and management are improper, it is very easy to cause clivia to grow weakly, such as small and few flowers, thin and narrow leaves, and dull, lusterless foliage, resulting in poor ornamental effect. When caring for clivia in summer, the following points should be noted.
1. Deal with high temperatures and small temperature differences. Clivia prefers a warm, cool climate, and its suitable growing temperature is 15°C to 25°C. If the temperature exceeds 30°C, the leaves become thin and elongated, and the flowering period is short with pale color. If it remains in a constant-temperature state for a long time, respiration speeds up and consumption increases. Not only will it fail to grow well, but it will instead show phenomena such as leaves becoming thin, drooping, dull and lusterless, and slow growth, affecting flower stalk emergence and blooming. To grow clivia well, be sure to maintain a temperature difference between day and night. But the day-night temperature difference should not be too large. During the day when the temperature is high, the plant produces energy through photosynthesis; at night when the temperature is low, the plant's respiration is weak and energy consumption is low, so energy synthesis exceeds consumption. Conversely, if the nighttime temperature is high, the plant consumes more energy through respiration, less energy is accumulated and stored, affecting the growth and development of clivia and causing thin, weak leaves.
2. Do not let light be too strong or too weak. Clivia prefers semi-shade. Summer sunlight is intense, and if shade is not provided to avoid direct strong light, the intense sunlight will scorch the leaves. If clivia is kept under too-weak light for a long time, it will also show slow growth and thin, weak leaves. This is mainly because weak light leads to insufficient photosynthesis and less accumulation of nutrients. Therefore, in summer, clivia should be given a certain amount of light.
3. Do not lack nutrients. If you usually do not pay attention to fertilizing, do not change the soil for a long time, and provide long-term malnutrition, clivia will not grow well. To make clivia leaves thick and plump, sufficient nutrients should be provided through reasonable fertilization.
4. Avoid root rot in clivia. Clivia requires a fertile, loose, and well-aerated substrate. If the soil used for planting has poor permeability, the watering interval is too short, the root system is deprived of oxygen for a long time, or the fertilizer water is not fully fermented or is too concentrated, it will cause root rot in clivia, directly shown as yellow spots appearing on the leaves first and then large areas turning yellow until the leaves fall off. After clivia root rot occurs, new leaves stop growing, old leaves rapidly wither and yellow from bottom to top, and the plant wobbles unstably.
5. Pay attention to repotting and changing soil. Weak growth in home-grown clivia may be related to not repotting or changing the soil. Repotting and changing soil can provide clivia with sufficient growing space and nutrients. Generally, clivia seedlings need repotting once a year, and clivia over four years old need repotting once a year or once every two years. Repotting is best done in spring and autumn. In conjunction with repotting, first the original root system should be properly thinned and old roots cut off; the soil should be completely changed and sufficient base fertilizer applied; at the same time, it is best to replace the pot with a new one or scrub the old pot to improve the pot's aeration. Wang Hexiang, Zhang Zhenning, Chen Xidan