2. Adequate illumination. Kale is a plant that likes light, and it is suitable for growing in a sunny environment. If the growing environment is too cloudy, it will affect the normal growth. The more sunlight there is, the brighter the color of the leaves will be, so you must choose a good position when maintaining and raise them in a sunny place.
3. Suitable temperature. Cold climate is more conducive to growth, and the suitable temperature is about 15℃-25℃, which can withstand cold and heat, and it is easier to maintain and cultivate.
4. Water in time. Kale is not drought-tolerant, so it can't grow normally when it is short of water. At the beginning of the period, the soil moisture is kept at about 70%. Sufficient water should also be given in the late growth stage, and the soil should be watered thoroughly as soon as it is dry. Although it likes to be wet, it can't accumulate water.
5. Precautions. Kale can't lack nutrients, and it needs a large amount of fertilizer. Fertilizing once every two months during the growing period can meet the growth demand by choosing compound fertilizer.