The most important and commonly used method in the propagation of kale is sowing propagation, and the sowing time must be controlled when sowing propagation. The sowing time is very important for the growth of kale. In general, we'd better choose to plant the seeds of kale from mid July to early August every year, which is conducive to seed germination and healthy growth. However, the amount of rainwater in this period is relatively large, so we should pay attention to the drainage work in the process of cultivating kale. After sowing, it's about late August when we can plant kale. In this way, kale can grow at a suitable temperature, with good growth condition and high ornamental value.
If the seeds of kale are sown before July, the leaves of kale will turn yellow in the long-term later stage of its growth. Kale with this phenomenon is not only unsightly, but also very difficult to manage, which will prolong the management period, time-consuming and labor-consuming. If the seeds of kale are sown later than the best time, it is already in late autumn. The weather is getting cold gradually. The growth temperature of kale is not enough, and the growth condition is not good enough. The leaves of kale grown in this climate will be smaller, so the ornamental value of the cultivated kale will be greatly reduced, showing the appearance of poor growth condition, affecting the beauty.