At 70 to 80°F, the plants flower and produce seed. Lettuce can tolerate a few days of temperatures from 80 to 85°F, provided that nights are cool. Lettuce seed will germinate at 35°F, but optimum germination is 70 to 75°F. If the plants are sufficiently hardened, they will withstand freezing.
What temp is too hot for lettuce?
Lettuce grows best in a temperature range of about 45 to 75 degrees. In weather hotter than that, the leaves become bitter to the taste. When leaf lettuce bolts—which means they begin to send up its flower shoots—it’s a signal that the production of edible lettuce is done for the season.
Can lettuce get too much 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.
Is 80 degrees too hot for lettuce?
Ideally, for tasty lettuce growing, you need to keep your soil temperatures between 45 and 80 degrees. Keeping below 80 degrees is hard to do here. Fortunately, there’s a trick to preparing a place to plant and even keeping it growing without bolting. Choose a shaded place and then moisten the ground.
Can I grow lettuce in July?
Summer varieties of lettuce will do great in July and August and seeds can be planted directly in the garden. Just be sure to keep the seeds moist till they germinate and get established. Most summer lettuce varieties resist bolting and tip burn.
How often should lettuce be watered?
Lettuce has shallow roots, so plants need consistent watering. Check at least twice a week and water if the soil is dry down to 1 inch deep. Containers of lettuce need to be watered more frequently than garden beds, especially in the summer.
How do you keep lettuce growing in the summer?
Lettuce doesn’t need full sun; in fact, it’ll perform better if you give it indirect light and cool shade. Plant summer lettuce underneath tall plants or arbors, or make your own shade structure. Some gardeners keep their lettuce in container gardens, which can be moved to shady spots in warm months.
How many hours of direct sun does lettuce need?
How much sun does lettuce need to grow? Most lettuce varieties enjoy full sunlight. For the best turnout, make sure you plant your lettuce in an area that receives approximately 6 to 8 hours of direct sunlight each day. Some varieties can also be grown in partial shade, receiving 4 to 6 hours a day.
What vegetables are heat tolerant?
15 Top Veggies to Grow in the Heat
- Sweet Potatoes. Sweet Potatoes grow well in summer and produce abundantly in as little as 90 days.
- Southern Peas. Southern Peas, also known as cowpeas are wonderfully versatile.
- Yard Long Beans.
- Hot Peppers.
- Green Beans.
- Okra.
- Zucchini Squash.
- Sunflowers.
How do greens grow in hot weather?
Tips for Hot Weather Greens
- Use shade cloth or plant in partial shade.
- Keep well watered.
- Mulch around plants to help keep the soil temperatures cool.
- Start plants that germinate better in cool soil (like lettuce) indoors and transplant out.
- Check out these other helpful posts:
- Also, check out our summer mesclun mix.
What is the best climate for growing lettuce?
between 60° and 65°F.
Lettuce does best in cool weather, temperatures between 60° and 65°F. To grow lettuce where temperatures are higher (especially 80°F or greater), make sure your planting bed gets afternoon shade.
What temperature can spinach tolerate?
20°F.
Spinach is a cool-weather crop that grows best when the daytime temperature remains consistently below 75°F–commonly in spring or fall. Young plants will bolt when exposed to temperatures below 40°F, but mature plants can withstand temperatures as low as 20°F.
What kind of lettuce grows in summer?
For summer growing, consider Skyphos, Adriana, Buttercrunch Bibb, Capitan Bibb, or Red Cross. Crisphead lettuces do not love warm temperatures. They tend to be more difficult to grow, despite being the most popular type of lettuce.
What does Overwatered lettuce look like?
Another indicator of overwatering your lettuce plant is browning leaves. If the leaves are brown and wilting, and the soil is wet, you’re likely overwatering. Brown leaves can also be a sign of underwatering, so before you add more water be sure to check the soil.
What is the best fertilizer for lettuce?
Feed lettuce plants every two weeks with a balanced water soluble or granular fertilizer, such as a 10-10-10 or a 5-5-5, diluted to half strength. Look for a fertilizer in which the three numbers separated by hyphens are equal or almost equal.
Can you use Miracle Grow on lettuce?
If you are looking for an all-around great option for lettuce then I recommend the Miracle-Gro All Purpose Plant Food. This is one of the Best Lettuce Fertilizers EVER! This fertilizer instantly feeds providing bigger, better lettuce. You can apply it every two weeks with a garden feeder.
Can you grow lettuce all year round?
lettuce (butterhead) ‘All Year Round’
You may never need another lettuce variety again. As the name suggests, this is one you can sow and grow at any time of the year: as a general rule expect to pick your lettuces around 10 weeks after sowing.
How many times can you harvest lettuce?
You can grow leaf lettuce in rows for nice bundles of loose leaf lettuce, or you can sow it thickly in a garden bed or container for harvest as young, tender lettuce. By harvesting leaf lettuce through trimming it a few inches above the soil, you can get two to three harvests from one planting.
Where does lettuce grow best?
Growing a lettuce garden
Lettuce 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).
Is afternoon sun good for lettuce?
Lettuce prefers a location with 5 to 6 hours of sun, but can benefit from afternoon shade when temperatures soar. Soil should be loose, well-draining, and moist but not soggy.
How do you keep lettuce from burning on the tip?
Avoiding inner leaf “tip-burn” in lettuce
- Fertilize with adequate amounts of calcium. First check that adequate calcium is supplied in the nutrient program.
- Calcium foliar sprays.
- Modify the growing climate.
- Avoid antagonistic effects from other fertilizer nutrients.
- Avoid high soluble salts.
- Select resistant varieties.
Gerardo Gonzalez loves cooking. He became interested in it at a young age, and has been honing his skills ever since. He enjoys experimenting with new recipes, and is always looking for ways to improve his technique.
Gerardo’s friends and family are the lucky beneficiaries of his delicious cooking. They always enjoy trying out his latest creations, and often give him feedback on how he can make them even better. Gerardo takes their input to heart, and uses it to continue refining his culinary skills.