Garlic likes cool climate. The suitable temperature for aboveground stem and leaf growth is 12- 16℃, and the optimum seedling age for overwintering is 4-6 leaves. It takes 40-50 days from sowing to growing 4-6 leaves. If the average daily temperature is below 7℃, the growth will stop.
The weather is cool at this time in September, which is suitable for the emergence and growth of garlic seedlings. Garlic planting time is very important. If sowing is too early, garlic seedlings will grow too vigorously before overwintering, which will consume health and reduce overwintering ability.
Therefore, sowing in the Yangtze River valley around mid-September can make the plants grow to 5-6 leaves before overwintering. At this time, plants have the strongest cold resistance and will not freeze to death in cold winter, which can lay a good foundation for plants to survive vernalization smoothly.
However, if garlic is sown too late, it will have weak roots, small seedlings and low cold resistance, leading to more winter deaths. Therefore, the sowing date of garlic must be strictly controlled.
garlic
Garlic is the underground bulb of Liliaceae and Allium. The whole garlic plant has a strong pungent garlic smell. Garlic, garlic leaves (green garlic or garlic seedlings) and flower stems (garlic stems) can all be used as vegetables, not only for seasoning, but also for medicine. It is a famous medicinal and edible plant.
Refer to Baidu Encyclopedia-Garlic above.