Home > leeks square foot gardening

The Ultimate Guide to Leeks Square Foot Gardening


We will explore how to grow leeks using square foot gardening techniques. We also provide some tips to ensure you have a successful harvest.

Setting Up Your Square Foot Garden for Leeks

Choosing the Right Location

When choosing the location for your square foot garden, make sure it receives 6-8 hours of sunlight daily. This is essential for leeks to grow tall and strong. Additionally, the location should have good drainage. This avoids waterlogging which can lead to root rot.

Building the Square Foot Gardening Box

The size of your gardening box will depend on how many leeks you want to grow. A 4x4 feet box is ideal for leek plants. Ensure that the box has at least 6 inches depth and proper drainage holes.

Selecting the Appropriate Soil Mix

Leeks prefer well-draining, sandy soil. The soil pH 6-7 is best. Equal parts of compost, peat moss and vermiculite will provide the necessary nutrients for your leeks to grow healthy.

Planting Leeks in Square Foot Garden

Sowing Leek Seeds

The first step in planting leeks is sowing the seeds. You can either start the seeds indoors or sow them directly in the garden. If you choose to start them indoors, make sure to use a well-draining and sterile seed starting mix. Sow the seeds about 1/4 inch deep. Keep them moist until they germinate.

Transplanting Leek Seedlings

When your seedlings are about 6 inches tall, transplant them into the leek square foot garden. Carefully remove them from their containers. Gently separate any root tangles before planting them.

How Many Leeks Per Square Foot?

You can grow 5–9 leeks per square foot. This will provide enough space for the leeks to grow and prevent overcrowding.

Leek Spacing Square Foot Garden

Leeks are a tall vegetable with long roots. Therefore, leave enough space between each plant to avoid overcrowding. A 12-inch spacing between each plant is recommended.

square foot gardening leeks

Companion Planting for Leeks

Plants that Complement Leeks in a Square Foot Garden

One of the best leeks companion plants is carrots. These two vegetables grow well together. They require similar soil conditions and do not compete with each other for nutrients. Additionally, their different root depths help loosen the soil. It is easier for both plants to grow.

Celery is another beneficial companion plant for leeks. It has a strong scent which can deter pests. It is a natural pest repellent for leeks. Celery also provides shade which helps to retain moisture in the soil.

Companion Plants for Pest Control and Nutrient Enhancement

You can plant leeks with herbs. For example, thyme, basil, and sage. These aromatic herbs can enhance the flavor of leeks. They also attract beneficial insects that prey on pests.

Lettuce is another excellent companion plant for leeks. Lettuce has shallow roots. It does not compete with leeks for nutrients and moisture. It also helps to trap moisture in the soil. This keeps the leeks well hydrated.

Marigolds and nasturtiums are also beneficial to square foot gardening leeks. These flowers act as natural pest repellents and attract pollinators. The leeks will be healthier and increase yields.

Leeks Square Foot Gardening Maintenance Tips

Watering Guidelines

Leeks require consistent moisture to thrive. This means regular watering is crucial, especially during hot and dry weather. Keep the soil evenly moist, but not waterlogged. Overwatering can lead to rot and disease in leeks. You should water your leeks every 2-3 days, or when the top inch of soil feels dry.

Fertilizing Techniques

To ensure healthy growth, it is important to fertilize your leeks regularly. You can add a good organic fertilizer to the soil before planting. For example, compost or manure. Then, again during the growing season. You can use a liquid fertilizer every 2-3 weeks. Avoid using chemical fertilizers. They can harm beneficial microorganisms in the soil.

Controlling Weeds and Pests

Weeds can quickly take over a square foot garden if left unchecked. Regularly inspect your plants for any signs of infestation. Mulching with organic materials can also help suppress weeds. For example, straw or shredded leaves.

Pests are also a problem in square foot gardening leeks. To control pests, regularly inspect your plants for any signs of infestation. Remove affected leaves or plants immediately. You can also use natural pest control methods. For example, companion planting and introducing beneficial insects to your garden.

Harvesting and Storing Leeks

Signs of Leeks Being Ready for Harvest

Leeks take about 120-150 days to reach maturity. But there are a few signs that indicate they are ready for harvest:

Outer leaves start to turn yellow or brown. Leeks have reached a desired size (about 1 inch in diameter). They feel firm and solid when gently squeezed. Not to wait too long to harvest your leeks. They can become tough and woody if left in the ground for too long.

Proper Harvesting Techniques

Gently loosen the soil around the base of the plant using a hand trowel. Graspe the leek at its base and pull it out of the ground. Pulling upwards while wiggling slightly. You may need to trim the roots off at this point.

Storage Tips for Freshly Harvested Leeks

You can store freshly harvested leeks in a cool, dry place for 3 weeks. Remove any damaged leaves and gently brush off excess dirt before storing.

You can also blanch and freeze your leeks for longer storage. Blanch the leeks in boiling water for 2-3 minutes. Then, immediately transfer them to an ice bath. Once cooled, drain and dry the leeks before storing in freezer-safe bags or containers.


Consider trying leeks square foot gardening if you're new to gardening or have limited space. Get started now and you will see results quickly.

Processed in 0.004852 Second.