What to Do When the Leaves of a Coral Cactus Turn Yellow? Causes and Solutions
The Coral Cactus (Euphorbia neriifolia var. cristata) is a plant native to eastern India. It was originally a variant of the Indian spurge tree, but later people found that this variety was also very distinctive, so it was gradually propagated. The fleshy stem of the Coral Cactus is an irregular flat fan shape, and its branches and leaves are a dripping verdant green, but during cultivation you sometimes encounter yellowing leaves, which brings many adverse effects on the ornamental value of the Coral Cactus. What causes this? Below, Qinnong Web will introduce it to everyone.
1. Temperature
The place of origin of the Coral Cactus is near the equator, so the Coral Cactus cannot tolerate cold. Generally, it should be moved indoors for cultivation in late autumn, and the temperature should be kept above 15°C, so that the leaves are less likely to turn yellow. If the temperature is below 10°C, the leaves may appear withered and yellow, so temperature is very important. It must not be too low, and of course too high a temperature is also not advisable.
2. Light
The Coral Cactus likes an environment with sufficient sunlight. Apart from needing appropriate shading in summer, it needs to be given enough light in the other seasons. Even in winter, the supply of sunlight must be ensured so that photosynthesis can provide the basic nutrients for the plant's growth. If the light is insufficient, over time the leaves will turn yellow and fall off.
3. Water
The Coral Cactus is a relatively drought-tolerant plant. Usually, as long as it is not left unattended for a long time and allowed to wither to death, there will not be any major problems. For daily watering, follow the principle of preferring dry over wet, and especially in winter watering must be strictly controlled, otherwise yellow leaves are very likely to occur.
4. Fertilization
The Coral Cactus does not have a great demand for fertilizer. The main principle is to fertilize less and apply diluted fertilizer. When potting, some base fertilizer can be applied, such as some crushed solid fertilizer. When fertilizing, avoid raw fertilizer and concentrated fertilizer, otherwise it would be bad if it causes leaf drop. Fertilizer supply should also be stopped in winter, and fertilization should be started again after the beginning of spring the following year.
The above is what Qinnong Web has introduced to everyone about the causes and solutions for yellowing leaves of the Coral Cactus, and we hope it can be of some help to everyone. In addition, Qinnong Web would like to remind everyone here that the Coral Cactus itself is a toxic plant. Its sap is highly toxic. It must not be eaten, and it must not be splashed into the eyes, as there may be a risk of blindness.