Quick Answer: What Temperature Can Lettuce Grow In?

What temperature is too cold for lettuce?

How to Grow: Lettuce is a cool-weather crop that thrives in the temperature range 60-65 degrees F, and if thoroughly hardened, most varieties survive temperatures as low as 20 degrees F.

Cold-adapted varieties survive much lower temperatures.

Seed germinates best at about 75 degrees F..

How do you grow lettuce in hot climates?

Meet the Heat ChallengeGrow loose leaf varieties that are heat-resistant or slow-bolting, rather than varieties that form heads. … Use transplants or germinate seeds indoors in containers away from heat.Provide shade. … Don’t skimp on water. … Mulch lightly with an organic mulch to retain soil moisture.

Does lettuce need full sun?

Although lettuce grows fastest in full sun, it is one of the few vegetables that tolerates some shade. In fact, a spring crop often lasts longer if shaded from the afternoon sun as the season warms. You can grow lots of lettuce in a small space, even a container.

What temperature will kill lettuce?

Colder temperatures (26-31F) may burn the foliage of, but will not kill, broccoli, cabbage, cauliflower, chard, lettuce, mustard, onion, radish, beets and leeks.

Why is my Buttercrunch lettuce tall?

Most lettuce varieties are cool season crops. When the hot weather comes, they send up tall stalks that will flower and set seed. You’ll notice that the leaves begin to taste bitter around the same time the stalks elongate. This is called bolting.

Why is my lettuce growing so slowly?

Summer Heat. Most lettuce varieties thrive during cool weather, growing best when temperatures are above freezing but below 75 degrees Fahrenheit. Warmer temperatures slow leaf production and can cause wilting. Lettuce may also bolt, or form a seed stalk, if temperatures become too warm.

What season does lettuce grow in?

springLettuce is a cool weather crop and is best grown in spring and fall. The seeds germinate in temperatures as low as 40 F (4 C) but its ideal germination and growing temperature is between 60 and 65 F (16 to 18 C). To grow great lettuce, find a site that offers at least six to eight hours of direct sun.

Will Frost kill leaf lettuce?

Lettuce is considered “hard frost hardy,” which means it can withstand frosts below 28 degrees. If the frost continues unabated, however, the cell walls may form ice, and the plant actually freezes.

How often should Lettuce be watered?

ANSWER: Lettuce should be watered not daily but instead about twice a week, or once every four or five days, for most of its growing period. It will need to be watered lightly but more frequently for the first two weeks after planting, perhaps daily, depending on your climate.

Does lettuce need a lot of water?

Keep Lettuce Plants Well Watered Water your lettuce plants every day—and even more often if it is extremely hot and dry. The lettuce leaves are mostly water and will desiccate and wilt in strong sunlight and dry soil. Lettuce roots tend to be shallow, so frequent watering is more important than deep watering.

How long does lettuce take to grow?

6 to 8 weeksHow Long Does It Take Lettuce to Grow? Lettuce grows fairly quickly. Leaf varieties reach maturity in 30 days but can be harvested as soon as they reach the desired size. Other types of lettuce require 6 to 8 weeks to reach full harvest size.

How many hours of sun does lettuce need?

12 hoursAll types of lettuce are short-day plants, which means the plants only need 10 to 12 hours of sunlight daily.