Growing lettuce in spring: which varieties can be put in the ground and when. When you can sow lettuces outdoors depends on the variety and the climate in your region.
For some varieties, outdoor cultivation is unfavorable before the ice saints and they should be preferred on the windowsill. The advantage of bed cultivation: Since the lettuces grow more slowly, they do not tend to sprout. You should be more careful with cold-sensitive varieties such as Batavia, oak leaf or iceberg lettuce. If it is still frosty, foil protection makes sense.