What to do if the cactus leaves turn yellow
Compared to the experience of most people with cactus leaves turning yellow and the methods to remedy yellowing leaves in flower cultivation, let's understand and learn together.
Cacti can survive strongly in the desert, which is enough to show that they have a tenacious vitality. Many novice flower growers will choose such a plant with strong self-survival ability. However, there is still a big difference between the growth environment of cacti at home and in nature, which causes cacti to often encounter some problems during cultivation. Today let's take a look at the reasons for cactus turning yellow and the solutions.
What to do if the cactus turns yellow (causes and treatment methods)
1. Overwatering. The potting soil is in a moist state for a long time, extremely hypoxic, the cactus gradually rots, obstructing the normal absorption of nutrients and water, so the leaves turn yellow and fall off. At this time, watering should be stopped, and fertilization should be paused, maintaining soil ventilation.
2. Drought and dehydration. Opposite to the above, this is caused by the wetting of the top and drying of the bottom of the flowerpot, affecting the absorption of water by the cactus, causing the leaves to become dark and yellow without luster, gradually turning yellow and falling off from the bottom up. Stop watering or spraying water at this time, and maintain an appropriate environment to gradually recover.
3. Long-term lack of fertilizer. If the soil has not been changed for a long time, it is necessary to repot and gradually increase the compound flower fertilizer.
4. Over-fertilization. Due to excessive fertilization, the old leaves gradually fall off. At this time, stop fertilizing, and increase water appropriately, immediately repot, and rinse the soil clump with water.
5. High temperature and heat. It is necessary to move the cactus to a cool and ventilated place in time.
6. Excessive shading. Due to long-term placement in a shaded area, insufficient sunlight absorption is needed, so it should be moved to a ventilated and sunny place in time.
7. Soil and water bias towards alkalinity. In the northern regions with alkaline soil and water, the lack of soluble iron elements causes the needle leaves to gradually turn yellow. It is necessary to water the alum fertilizer solution.
8. Poor ventilation. Reasonably prune to make it light-transmitting. Due to the lush branches and leaves, it is easy to cause leaf drop, so pay attention to ventilation and light transmission.
9. Dry air. Excessively dry air requires attention to spraying water to appropriately increase air humidity.
10. Improper temperature. With the change of seasons, the indoor temperature also changes accordingly, so it is necessary to adjust the appropriate room temperature in time.
11. Soil acidity. The loss of chemical elements in the soil causes the soil to become acidic, and it is necessary to apply alkaline solutions such as calcium magnesium phosphate.
12. Diseases and pests. Due to the invasion of pathogens, it is easy to cause leaf spot disease, resulting in yellowing of branches and leaves. It is necessary to spray pesticides for prevention and control.
13. Strong stimulation. Excessive concentration of pesticide spraying leads to the generation of toxic gases and pollution, causing overall withering. It is necessary to use pesticides reasonably, prevent air pollution, and make correct judgments and symptomatic treatment.
Complete guide to cactus propagation methods
1. Cactus cutting propagation
For cactus cutting propagation, it is necessary to cut 1 to 4 nodes or large branches that can branch as cuttings. Before cutting, the cuttings should be dried in the sun for three days until they are completely dry.
Prepare cutting substrates: Use nutrient soil or river sand, peat soil, etc., as the materials for cutting. After selecting a good substrate, directly insert the dried cuttings into the soil. After inserting, place them in a warm, well-lit place for maintenance, be careful to water less, and wait for root germination.
2. Cactus seed propagation
First, you can pollinate the cactus flowers. With your help, just use a cotton swab to transfer the pollen to the pistil. After a period of growth, the fruit will mature, and then the seeds inside the fruit can be taken out and cleaned.
After cleaning, wrap the seeds in gauze; then prepare a pot of soil, water it well, and sprinkle the seeds on the potting soil, placing them in a shaded place for maintenance. After the seedlings sprout, they can be transplanted and cared for.
3. Cactus grafting propagation
When grafting propagation, first select a strong and disease-free ball seed, cut off the tip, and then peel off the outer skin. Then prepare a healthy leaf cactus plant as an auxiliary rootstock, cut off the bottom of the ball seed, and expose the core.
What to do if the cactus leaves turn yellow
Can cactus fruit be eaten
Cactus fruit can be eaten; it tastes cool and crisp. However, not all cactus fruits are edible. It depends on whether they are edible varieties. Therefore, when you see cactus fruit and don't know its type, it's better not to eat it randomly.
The functions of cactus fruit
1. The flesh contains many rich trace elements, proteins, amino acids, vitamins, polysaccharides, flavonoids, and pectin, all of which are beneficial to the human body.
2. The fruit can be eaten as food, peeled and eaten directly, or made into dishes.
3. It also has medicinal effects, such as eliminating dampness and heat, promoting qi and blood circulation, and promoting muscle growth.
4. The fruit can promote the normal expansion and regeneration of fibroblasts in the human body, help injured people heal wounds, and clear bacteria that cause inflammation of the wound.
5. Substances that can speed up wound healing, make the skin soft and delicate, prevent skin dryness, and reduce wrinkles can be extracted from the fruit, which can treat wounds and beauty at the same time.
Although cacti have a relatively strong vitality, they still need more attention during cultivation. After all, water, soil, and sunlight are essential conditions for any plant to survive. Giving the cactus a suitable growth environment might even grow fruit, which has very high edible and medicinal value.
The above (Green Plant Enthusiast Network) introduces how to deal with yellowing cactus leaves, a detailed description of the remedial methods for yellowing leaves, hoping to bring you help!