Lettuce is one of the easiest plants to grow in a spring or fall garden. Learn to grow lettuce indoors or outdoors, from plants or seeds.
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Have you ever wondered how to grow lettuce for your own salad greens? Few things taste better than homegrown vegetables, including lettuce.
This post is about how to grow lettuce indoors or outdoors in a home vegetable garden.
Lettuce is one of the easiest garden vegetables to grow—so long as the weather cooperates. Lettuce needs cooler temperatures to grow compared to other types of vegetables. For this reason, lettuce is one of the best vegetables to grow in a cool weather spring vegetable garden or fall vegetable garden.
How do you grow lettuce at home?
Lettuce is very easy to grow at home. Simply purchase a packet of lettuce seeds and sow them in soil. Lettuce seed can be direct sown outdoors or sown indoors.
Plant lettuce seeds about ¼-inch deep. The best temperature range for lettuce seed germination is 55 to 65 degrees Fahrenheit. Lettuce seed should germinate in about 7 to 10 days. Thin to the strongest seedlings once the seedlings have 3 to 4 true leaves.
Use a heat mat to provide enough heat for seeds to germinate. Place seedlings under a grow light so that they have light to grow into plants that are large enough to transplant. Transplant seedlings to larger pots or to a raised bed or outdoor garden at 2 to 3 weeks or when the plants are approximately 4 to 6-in. tall.
Lettuce grows best at a temperature range of 55 to 75 degrees Fahrenheit, making it a great plant to grow in a fall or spring garden. If your outdoor weather is not cool enough to grow lettuce outdoors, than consider growing lettuce indoors using a hydroponics system.
Stagger plantings, or plant new lettuce seeds every few weeks, for a continuous harvest throughout the growing season. This allows you to have lettuce at different levels of maturity for harvesting.
Lettuce can be grown in containers, and lettuce can also be grown indoors. Use plant grow lights to provide adequate light when growing lettuce indoors. One of the easiest ways to grow lettuce indoors can be to use a hydroponics system.
How long does it take to grow lettuce?
Lettuce is one of the fastest growing vegetables to grow in a home vegetable garden. For many types of lettuce, baby lettuce can be harvested at 30 days, while mature lettuce is harvested at 55 to 70 days.
For faster crops, look for “baby greens” or “baby lettuce” blends that are meant to be harvested at 30 days. These mixes can be grown in containers or indoors for a fast lettuce harvest.
Does lettuce need full sun?
Lettuce is one of the few vegetables that does not need 6 to 8 hours of full sun each day to grow.
Lettuce can grow in partial shade, so long as the plants receive at least a few hours of sunlight each day. Lettuce grown during spring and summer may benefit from being grown in partial shade when sunlight is intense.
Can you grow lettuce all year round?
It may be possible to grow lettuce all year round in certain conditions.
For example, lettuce can be grown indoors in many places, so long as plant grow lights are used to provide the full spectrum of light that plants need. In addition, temperatures should be kept within the optimal range for the plants to grow, about 55 to 75 degrees Fahrenheit.
To grow lettuce outdoors, sow lettuce seeds during the optimal cool weather temperatures of spring and fall.
To grow lettuce outdoors during colder winter months, look for lettuce varieties that are cold hardy, like Rouge d’Hiver lettuce or Winter Density lettuce.
Lettuce that is grown outdoors in winter may need extra protection to project the plants from frost. Use a frost blanket to cover plants or grow plants in an unheated greenhouse.
To grow lettuce outdoors during summer months, grow summer lettuce varieties, like Jericho lettuce, Nevada lettuce, or Sierra lettuce.
If you are growing lettuce in warm environment, look for lettuce that is described as being “tip burn” and “bolt” resistant to help prevent some of the problems that come with growing lettuce in warmer weather.
What is the best time to grow lettuce?
Outdoors, lettuce grows best during the cooler months of spring and fall. Lettuce grows best between temperatures of 55 and 75 degrees Fahrenheit.
Lettuce can be grown indoors all year round, so long as optimal environmental factors are met. Use a plant grow light to provide an adequate spectrum of light if you plan to grow lettuce inside your home. Your plants will thank you for it.
What pests and diseases affect lettuce?
Lettuce pests include aphids, cutworms, snails, slugs, and caterpillars. Lettuce diseases include tip burn and rot.
How do you harvest lettuce?
Harvest lettuce first thing in the morning, when the leaves are crisp. Use a pair of scissors or clippers to remove individual leaves from leaf lettuce or cut-and-come-again lettuce plants. Use a garden knife to remove head lettuce (like Iceberg lettuce or Ice Queen lettuce) at the base near the soil line.
Once picked, wash and dry the lettuce leaves thoroughly. A salad spinner can be used to rinse and dry leaves. Lettuce may be stored in the refrigerator for up to 3 days.
If you want to harvest lettuce so that it keeps growing, look for “cut-and-come-again” lettuce blends. Continually harvesting lettuce may help to keep it from bolting.
How do you store lettuce so that it stays crisp?
Store lettuce in bins that allow adequate airflow. Options for storing lettuce in the refrigerator include produce bins and produce bags.
A great tool for lettuce and other salad greens is the salad spinner, which will wash and spin lettuce leaves dry.
The salad spinner can also be used to store lettuce in the refrigerator for up to 3 days. If you eat a lot of salad, or plan to start eating more salad, a salad spinner is a great tool to have.
What are good companion plants for lettuce?
Good companion plants for lettuce include:
- Beans
- Beets
- Broccoli
- Carrots
- Cilantro
- Cucumbers
- Dill
- Nasturtium
- Onions
- Radishes
- Strawberries
- Thyme
- Tomatoes
What are some popular varieties of lettuce?
There are five main types of lettuce. Types of lettuce include butterhead lettuce, crisphead lettuce, loose leaf lettuce, and romaine lettuce. Stem lettuce, or celtuce, is very popular for use in Asian cooking.
- Butterhead lettuce—forms round heads with buttery soft, green leaves. Varieties include Buttercrunch lettuce, Bibb lettuce, Boston lettuce, and Optima lettuce.
- Crisphead lettuce—forms a light green, cabbage-like head at maturity. Crisphead lettuce produces crispy lettuce with light green leaves. Varieties include Hanson Improved lettuce, Ice Queen lettuce, and Iceberg lettuce.
- Loose leaf lettuce—Loose leaf lettuce does not form a round head. Instead, the leaves grow straight up from the center. Pick the outer leaves from the plant to keep it growing and producing lettuce throughout the season. Popular varieties include Tango lettuce.
- Romaine (Cos) lettuce—Romaine lettuce plants form a loaf or football-shaped head. The leaves are crispy and delicious in salads. Romaine lettuce is used to make classic Caesar salad.
- Stem lettuce—Also known as Celtuce, stem lettuce is widely grown in China. Both the stem and leaves are eaten.
This post was all about how to grow lettuce.
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Credits
- Photo by Stephanie Moody / Unsplash
- Photos are for illustrative purposes only.