Balcony potted cucumbers: one vine with ten cucumbers dangling and swaying all over the balcony, no need to buy cucumbers anymore

Cucumber is an essential vegetable on our dining table. Eaten raw, it is crisp and refreshing; whether cold-tossed or stir-fried, everyone has their own preference. In summer, the climate and temperature are both suitable, so you can grow a few plants on your own balcony, beautiful and practical.
If the cucumber leaves grown on the balcony turn yellow, what causes it? Let's take a look together:
1. Overwatering
If you are too impatient and always hope it will grow faster, you end up watering too much! However, if the amount of water is too much, the roots cannot absorb it and it cannot drain out either. The excess water stays in the potting soil, and the root system is stuffy, wet, and unable to breathe, so it gets damaged and rots. At this point, the plant's leaves will turn yellow, and more and more leaves will turn yellow. In more serious cases, the cucumber plant will wilt and even die.
Therefore, you cannot water it many times. Just keep the soil moist, or water it by the "dry-wet" cycle, so that the plant's root system can stretch and absorb normally, work properly, and the plant can grow vigorously.
2. Excess fertilizer or insufficient nutrients
During its growth, cucumber has a high demand for fertilizer, but you still cannot increase the amount of fertilizer at will. If too much fertilizer is applied, the excess fertilizer cannot be absorbed by the plant and will remain in the potting soil. Under high-temperature transpiration, it will scorch the plant's root system, burning the roots! Once the roots are damaged, they cannot absorb nutrients normally, and insufficient nutrients will lead to yellow leaves.
Therefore, fertilization must be done in the right amount. During the bud stage and the fruiting stage, you can use fertilizer mainly based on phosphorus and potassium, two to three times a month. This kind of fertilizer is good for the plant's root system to absorb and can also increase yield.
On the other hand, if too little fertilizer is used, and after planting you never fertilize it again, letting it develop on its own, the nutrients in the potting soil will be almost used up. The cucumber plant's nutrition will be insufficient, and the leaves will also turn yellow. At this point, the plant grows thin and spindly, sallow and emaciated with no energy, and the cucumbers it produces, with big heads and small tails, are even harder to look at.
3. Lack of trace elements
During the growing period, cucumber also needs many trace elements, such as magnesium, iron, zinc, calcium, etc. If these are lacking during growth, the leaves will also turn yellow. It is recommended to spray a foliar fertilizer specially made for cucumbers during the growing period to supplement these trace elements and improve the quality of the cucumbers.
4. Pests and diseases
When cucumbers are infested with insects, they mostly gather on the leaves, causing the leaves to become mottled yellow-green, with yellow leaves, variegated leaves, or leaf drop.
Usually, observe the plant's growth status more often, and if you find insects, control them promptly. If there are not many insects, you can use spicy vegetables such as garlic, chili peppers, and ginger, chop and mash them, mix with water, and then spray the whole plant, or dilute high-proof white liquor with water and spray it. The results are both quite good. If the pest infestation is severe, you will have to use a dedicated insecticide to spray and control it.
There is also another possibility: it is a natural phenomenon during the growing period, just like human metabolism. When new leaves grow, the old leaves at the bottom of the plant, because they cannot get light and do not have enough nutrients, will slowly turn yellow and fall off. This is normal and you do not need to worry about it.
These situations of yellow cucumber leaves are all relatively common. Discover them early, correct them early, and the cucumbers can return to a normal state! When your balcony is full of cucumbers, one after another, with thick green growth, don't you also feel very delighted?