The most suitable months for sowing lettuce are March and April.

The temperature in spring is stable, the climate is cool, and the light is sufficient but not too intense, so it is most suitable for sowing lettuce. In addition, lettuce can also be sown in summer, but it requires shading and cooling.

When sowing lettuce, spread the seeds evenly on the soil surface, cover it with a thin layer of soil, and then compact it gently with your hands. Water after sowing to keep the soil moist, and avoid overwatering. Otherwise, the newly planted seeds will be washed out by the water flow.

Lettuce likes light, so make sure it receives sufficient light after sowing. During the growth period, you also need to mix nitrogen fertilizer, phosphorus fertilizer, and potassium fertilizer to give the lettuce enough nutrients. When you find that the soil turns white, water it in time. Water thoroughly every time you water.

Growth habits of lettuce

Lettuce likes a cool environment and is neither cold nor heat-resistant. The suitable growth temperature is 15℃-20℃, and the growth period is 90-100 days. The seeds are more tolerant of low temperatures and can germinate at 4°C. The suitable temperature for germination is 18-22℃, and almost no germination occurs when the temperature is higher than 30℃.

During the growth period of the plant, it likes a cool climate, and is most suitable for growth at 15-20℃, with high yield and excellent quality; if it is continuously higher than 25℃, the growth will be poor, the leaves will be thick and old, and have a slightly bitter taste. However, it is also quite cold-tolerant, and even short-term low temperatures of 0°C and sub-zero will not significantly hinder growth.

Lettuce has a well-developed root system, waxy leaves, and strong drought tolerance. However, when cultivated on fertile and moist soil, it has high yield and good quality. The optimum soil pH value is 5.8-6.6.