How to grow lettuce so you can pick a salad all spring

Sow a little lettuce every couple of weeks and you can keep salad greens coming for months. Start early and learn how to pick the leaves so the plant keeps producing. You do not need much space to keep picking.

Plant seeds early in the spring

Start your seeds while the weather is still cool. Lettuce can withstand light frosts, so you may not need to wait for the last frost to pass. Leaf and butterhead lettuce can be sown as soon as the soil can be worked in spring or in late summer.

Grab a handful of dirt from your garden bed and squeeze it. It should crumble apart easily. Do not plant if the dirt stays in a muddy clump because that means the ground is still too wet. Wait a few days for the sun to dry it out.

Clear the area of weeds and rocks. Lettuce roots are shallow and struggle to push past large obstacles. Work some compost into the dirt once the soil dries out enough to rake flat.

You can plant directly in the ground. You might also try filling a raised garden bed to help the soil drain faster. Smooth the surface carefully with a metal rake. You want a flat bed so small seeds do not fall too deep into cracks.

Give each plant room to spread

Lettuce seeds are tiny and look like splinters of wood. It is easy to accidentally dump a thick pile of them into one spot. Sprinkle them lightly over the soil surface. Cover them with a very thin layer of dirt.

The plants will fight for space and stop growing if they stay too close together. You have to thin them out once they start to crowd each other. Pull the weakest seedlings and leave the strongest ones behind.

You can eat the tiny leaves you pull during this thinning process. They make a great fresh salad. Give the remaining plants enough space to reach full size.

According to the University of Maryland Extension, leaf, cos and butterhead lettuce are spaced 4 to 10 inches apart in the row. Give head lettuce the wider end of that range. Loose leaf varieties can handle a tighter squeeze. Proper spacing also lets air flow between the plants which may help limit mold.

Plant a new batch every two weeks

A single big planting means all your salad will be ready on the exact same day. You will have more than you can eat at one time. Mature plants can turn bitter and bolt as days lengthen and heat rises.

Avoid that rush by staggering your seeds. Plant a short row or a small patch first. Wait two weeks and plant another patch right next to it. Repeat this process through the spring months.

This method gives you a continuous harvest. New plants will finish growing right as the older ones fade. You can pick fresh leaves from the garden most days.

Lettuce takes 40 to 80 days to mature depending on the type. The timing depends on the type.

Check the back of your seed packet for the specific timeline. This helps you know exactly when to expect your first bowl of greens. You can also mix different varieties in the same row.

Growing lettuce in containers

You do not need a traditional garden plot for this crop. Growing lettuce in containers works well because the roots are shallow. A shallow pot provides plenty of room.

Make sure the container has clear drainage holes in the bottom. Fill it with a standard potting mix from a garden center. Garden soil dug from the yard can be too heavy and may pack hard inside a pot.

Containers dry out much faster than the ground. You have to check the moisture every single day. Stick your finger into the soil. Water the pot thoroughly if the surface feels dry to the touch.

You can also grow vegetables in grow bags on a sunny patio or balcony. Fabric bags drain excess water quickly. They help keep the roots from sitting in cold mud. Place your pots near the kitchen door so you remember to harvest them often.

Harvest outer leaves to keep plants producing

You do not have to pull up the whole plant to make a salad. You can pick just a few pieces and let the rest keep growing. This simple harvesting method works best with loose leaf varieties.

Wait until the leaves are large enough for a salad. Take a clean pair of scissors out to the yard. Snip the oldest leaves on the outside of the plant. Cut them just above the soil line.

Leave the small inner leaves and the center crown completely intact. That center point is where all new growth happens. The plant will push out fresh leaves to replace the ones you took.

You can usually return to the same plant for several harvests before it wears out. Wash the leaves in cold water and dry them in a salad spinner. Store any extra leaves in a plastic bag in the refrigerator.

Head lettuce varieties require a different approach. You usually wait for the entire head to feel firm before harvesting. Cut the whole head off at the base with a sharp knife. Head varieties usually do not regrow well once cut.

Provide water and shade as weather warms

Lettuce thrives in cool spring air and gentle rain. It struggles heavily once summer heat arrives. The leaves turn tough and the flavor turns bitter. The plant will stretch upward and prepare to drop seeds.

You may be able to delay this bolting process by keeping the roots cool. Spread a thin layer of straw mulch around the base of the plants. This traps moisture in the soil and blocks the hot sun from baking the dirt.

Water the bed deeply at the base of the plants. Overhead watering with a sprinkler can encourage fungal diseases. Leaves that stay wet into the night are more prone to rot. Use a watering can or a drip hose instead.

Give the patch a good soak early in the morning. The plants can drink up the moisture before the afternoon heat sets in. Try to keep the soil consistently damp but never flooded.

Consider planting your seeds next to taller crops like tomatoes or pole beans. The larger plants can cast a shadow over the lettuce during the hottest part of the day. You can also drape a shade cloth over wire hoops to protect the bed from harsh sunlight.

Keep garden pests away from tender leaves

Slugs and snails love to eat tender young greens. They hide during the day and chew large holes through the leaves at night. A floating row cover helps cut down on slug and other pest feeding.

Rabbits can also be a problem for spring gardens, and a physical barrier is the usual answer.

Wrap chicken wire around your garden bed. Make sure the wire is tall enough to block a jumping rabbit. Bury the bottom edge into the dirt so they cannot dig underneath.

Aphids sometimes gather on the undersides of the leaves. These tiny green insects suck the sap out of the plant. Wash them off with a strong blast of water from the garden hose. Check the leaves carefully before you bring them into the kitchen.

Sow seeds again for a fall harvest

Summer heat will eventually win out. Your spring plants may bolt and fade despite your best efforts. Pull them out and toss them in the compost pile. You can use that empty garden space for warm weather crops.

The growing season is not over yet. You can start the whole process again for a fall harvest. The soil cools down as summer ends, which suits fresh seeds.

Wait for the most brutal summer heat to pass. Sow a new batch of seeds in late summer. Keep the soil very moist while the seeds germinate.

The plants will grow happily as the days grow shorter and the air turns crisp. Lettuce can withstand light frosts. Throw a frost blanket over the bed to protect it from heavy frosts.