Where to Buy Sweet Leaf Lettuce Seeds? A Detailed Guide to Seedling Cultivation

Many people only know leaf lettuce and not sweet leaf lettuce. Sweet leaf lettuce is an improved variety with round leaf tips, oily green color, glossy surface, good taste and a slight sweetness. So where are sweet leaf lettuce seeds sold? How do you raise the seedlings? Let's find out below.

Where are sweet leaf lettuce seeds sold?

Sweet leaf lettuce seeds can be bought at local agricultural supply stores or online. At present, the wholesale price of sweet leaf lettuce seeds in Yingde City, Qingyuan City, Guangdong Province is 3 yuan/bag, the wholesale price of sweet leaf lettuce seeds in Shuyang County, Suqian City, Jiangsu Province is 3.8 yuan/bag, and the wholesale price of sweet leaf lettuce seeds in Jialing District, Nanchong City, Sichuan Province is 5 yuan/bag. These prices come from the place-of-origin wholesale prices on Nongxun Net and are for reference only!

How do you raise sweet leaf lettuce seedlings?

1. Sowing time

Sweet leaf lettuce can be planted all year round. In winter, greenhouses and conservatories should be used for production, and in summer, shade nets should be used for covered cultivation. Generally, for greenhouse production, it is best to grow strong seedlings before the cold winter arrives, that is, the seedling stage should avoid the cold winter season of January.

2. Sowing and seedling cultivation

The suitable temperature for sweet leaf lettuce seed germination is 15°C-20°C. Above 25°C or below 8°C, the seeds will not sprout. Therefore, for summer and autumn cultivation, germination must be promoted before sowing, otherwise it is difficult to ensure successful seedling cultivation. First soak the seeds in clean water for 4-6 hours, then scoop them out and drain them, and wrap them in gauze. In suitable seasons, direct sowing for seedling cultivation can be done; in winter and spring, seedlings can be raised in conservatories and greenhouses; in summer and autumn, shade nets are best used for shading and cooling during seedling cultivation and production.

3. Germination promotion methods

Thermos flask and ice cube germination method: hang the soaked seeds inside the flask, add clean water and ice cubes to the flask, keep the temperature at 15°C-20°C, rinse once every other day and keep changing the water and adding ice cubes. Refrigerator low-temperature germination method: put the soaked seeds into a refrigerator at 15°C-20°C, and rinse once every day. The above germination promotion takes about 2-4 days; once 60%-70% have sprouted, they can be sown.

4. Emergence and transplanting

When sowing, water the seedling bed thoroughly. Because the seeds are brown and very small, fine soil must be mixed in before sowing. Broadcast sowing: after sowing, cover with sifted fine soil; if the weather is hot, add a straw mat cover, and if the weather is cold, cover with a layer of plastic film. After the seedlings emerge, the covering must be removed. In summer, seedlings emerge relatively quickly, about 3-4 days; in winter, emergence is slow and takes about 7 days. When the seedlings grow to 3-4 true leaves, they can be transplanted to the field. To obtain a higher yield, appropriate dense planting can be used: 667 sq m can plant 25,000-30,000 plants.

The above is an introduction to sweet leaf lettuce seeds and seedling cultivation methods. Sweet leaf lettuce is rich in nutrients, and eating it has many benefits for the body. Everyone can buy seeds and sow them. Is there anything else you would like to add about sweet leaf lettuce?

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