Lettuce Plant Cold Tolerance

Lettuce is considered hard frost hardy which means it can withstand frosts below 28 degrees. In general a frost 31-33 degrees F will kill beans cantaloupe corn cucumbers eggplant okra peas pepper potatoes sweet potatoes squash tomatoes and watermelon.

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Growing lettuce is relatively easy.

Lettuce plant cold tolerance. Cold-tolerant lettuce and the rest. In molecular terms researchers prioritize research into the. Digging compost into our cold frames in preparation for fall planting.

Half-grown lettuces are more cold-hardy than full-sized plants. 4 rows Lettuce grows best at temperatures of 55 to 65 degrees Fahrenheit. Up until around August you can still sow a wide range of lettuces.

Overexpression of Arabidopsis ABF3 gene enhances tolerance to droughtand cold in transgenic lettuce Lactuca sativa. Good survival of Green Forest and Revolution lettuce sown September 24 in our hoophouse after the Big Freeze on January 10. Frost tolerant plants can often be treated very similarly to cold hardy plants.

Some grow quickly and produce a crop for the fall even without the need for any special winter protection. Lettuce does NOT like hot weather. Niki Jabbour who grows vegetables and fruits year-round at her home in Nova Scotia offers these suggestions for cold-tolerant greens to grow in fall and winter.

Well as long as it is cool enough. Over the past ten years research on the process of adaptation and tolerance of plants during cold stress has been carried out. Lettuce can survive an occasional dip to 10F 12C with good rowcover outdoors but not 8F 13C as Ive seen.

Unfortunately lettuce is NOT a tropical plant. However the underlying mechanisms are complex and not well understood. Planting lettuce in a shady spot in the summer months keeps the plant cool so you can harvest into the hot months.

Adolescent lettuce are more cold-hardy than full-sized plants. Plant a few seeds every week and youll have a constant crop for fresh salads. Lettuce is a cool-season vegetable that thrives in the lower temperatures of spring and fall.

When To Plant Frost Tolerant Vegetables. Growing Lettuce Lactuca Sativa How To Grow Lettuce In Warm Weather. Meaning they can be placed outside when temperatures are consistently above freezing and preferably somewhat above it.

As with cold hardy plants we recommend bringing young plants inside or in a greenhouse in the event of a dip into freezing temperatures. Seedlings can germinate in temperatures as low as 40 4 C but germination gets spotty in temperatures over 75 24 C. In the tropics you can only grow lettuce during the cooler months.

Colder temperatures 26-31 degrees F may burn foliage but will not kill broccoli cabbage cauliflower chard lettuce mustard onion radish and turnip. Tatsoi is one cold-tolerant green that can be grown in fall and winter vegetable gardens. One of the vegetable gardens most versatile plants lettuce comes in an amazing array of colors shapes and flavors.

We had extremely cold weather at New Year -3F on Jan 2 and Jan 3 followed by -8F on Jan 6 and -9F on Jan 7. Temperatures over 70 degrees. Although it can withstand hard frosts if the root freezes the plant thaws into a.

Previous studies have reported that low temperature LT constrains plant growth and restricts productivity in temperate regions. A brief frost is unlikely to hurt romaine or any lettuce unless it becomes an extended event. Small and medium-sized plants of Marvel of Four Seasons Rouge dHiver Winter Density and Tango can take 15.

We keep a list of lettuce varieties for each season. Many varieties of lettuce will grow well into fall even with cooler temperatures. But I come from a cooler climate originally.

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