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How to Grow Lettuce

by a Friendly Gardener
Watering lettuce growing in garden beds

Lettuce is a vegetable plant that belongs to Asteraceae, a daisy family. Although it is mainly grown and used for its leaves, there are some varieties whose stems and seeds are also eaten.

It is essential to pick the right variety that you want to grow since some of them can give you different results and require different conditions. Overall, however, the process of growing lettuce is quite manageable.

Lettuce is ideal to grow if you have a backyard. To understand more about the process, you can go through the following growing and care requirements and steps.



Lettuce varieties growing in greenhouse

There are several varieties of lettuce that you can grow at home. Some of these include looseleaf, crisphead (or iceberg), romaine, butterhead, oakleaf, and redleaf among several others.

These varieties mainly vary based on their head sizes, tightness levels, shape and color of the leaves, growing patterns, and temperature and watering conditions. You can grow any of these varieties as long as you provide the proper care conditions, although some varieties are easier and quicker to grow such as looseleaf and crisphead.


Planting Season

Planting lettuce in a greenhouse

When you should sow and plant lettuce can slightly vary depending on not only the variety but also the climate that you live in as well as how and where you want to grow the plant.

Ideally, you should sow the seeds and grow the plant in early spring so that the temperature conditions can favor the growth. Too much heat is not something that the lettuce requires.

In addition, since lettuce can withstand a bit of frost, you can sow the seeds around the end of winter as well to start them off. You can then keep sowing the seeds a few at a time for a constant supply that can give you these vegetables in your backyard nearly all year round.

There are also a few lettuce companion plants that you could start growing at the same time, such as carrots, parsnips, eggplants, and many more.



Where you grow the lettuce is also important. A backyard can be quite ideal for this since you can provide the plant with enough space as well as sufficient light, heat, and shade throughout the day.

It is also best to grow the lettuce around vegetables and plants that tend to grow in the summer so that by the time you harvest the lettuce, you can simply allow the other plants to grow in its stead.

An interesting and effective method is also to change the location every time you grow the lettuce so that you can prevent pests and diseases.


Planting Method

Growing lettuce in pots

You can go through the following steps involved in planting and growing lettuce.


  • Use either seeds or seedling transplants for growing lettuce.
  • If you are growing them in the soil in your yard, prepare the soil first by adding old manure to it.
  • For seeds, sow them in the soil up to ¼ of an inch deep so that you can ensure enough light for the seeds to germinate properly.
  • Sow the seeds up to a foot apart.
  • If you are using seedlings or transplants, then you should ensure that they have around 4 leaves on them along with some established roots. You can then thin them out a bit.
  • Grow these transplants or seedlings up to a foot or 12 inches apart depending on the variety. Some might even need lesser space.
  • Cover the seeds with a thin layer of soil and provide the essential care conditions (see below) to ensure healthy growth.


Lettuce Care Conditions

You will need to provide proper care conditions to ensure healthy growth and to maintain the plant well. Some of these requirements are as follows.



Lettuce requires bright and direct sunlight for around six hours a day along with a bit of shade when it is particularly hot, so make sure you choose a spot in your yard accordingly. Temperatures around 45°F-65°F (or 7°C-18°C) are ideal or in USDA hardiness zones 2-11.



Growing lettuce in soil

The soil should be cool, moist, fertile, and full of organic matter, well-draining, and with a soil pH that is slightly acidic to neutral.



You should water your lettuce plant regularly and consistently. Once a week is a good measure, although warmer seasons can require more frequent watering. A good rule of thumb is to look for dry soil or wilting leaves and water it immediately if you notice this.



You should add organic matter to the soil before you sow the seeds so that you can ensure healthy growth while also preventing weeds. After around 3 weeks, you can start adding a fertilizer that is rich in nitrogen and of a slow-release kind to maintain the conditions and effects.



Bolting is a condition that your lettuce plant may experience if the temperatures go beyond 70°F or 20°C. Lettuce does not withstand hot temperatures too well, resulting in the development of a stalk and stem which can ruin the taste of the lettuce leaves.

A good way to prevent this is by giving the plant some shade, keeping the soil cool, and providing enough water.


Pests and Diseases

Some common pests and diseases that lettuce plants tend to experience include aphids, earwigs, mildew, cutworm, woodchucks, rabbits, lettuce mosaic virus, mold, whiteflies, slugs, and others. Ensure proper circulation and care conditions while also avoiding overwatering.

Replant the lettuce or remove the damaged parts if it is still possible to save the plant.



Red lettuce in earth soil

Harvest the lettuce in the morning once the leaves grow up to 6 or 7 inches long. Do not wait for the lettuce to fully mature since this will make it taste bitter. Pluck out the outermost leaves while leaving behind the inner ones so that they can grow out properly too.

For some varieties, ensure that the head is a bit hard and is not growing any longer otherwise it might lead to bolting.

Once you pluck the leaves, soak them in some cold water for 2-5 minutes.


Parting Words


Those were all the steps and considerations involved in growing lettuce. Pick a variety, go through its details, and start growing the lettuce in your yard (or even in a container in your home). Harvest when ready.

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