What Vegetables Can Grow in 6 Inches of Soil? The Ultimate Guide

Growing a vegetable garden is a satisfying activity: being able to harvest the fruits of your efforts is a feeling only gardeners know!  Most plants need at least 12 inches of soil to stretch their roots and grow. But some require much less. Let’s look at what vegetables can grow in 6 inches of soil. 

What Vegetables Can Grow in 6 Inches of Soil?

While there are several ways to grow veggies in your yards, many people still prefer to plant seeds directly in the ground. Of course, each method has its benefits and drawbacks, and by placing your veggies in the soil, you’ll need to determine the proper type for your plants (loamy, sandy, well-draining, rich in nutrients, and so on).

However, some vegetables can grow even in six inches of soil! All you have to do is choose the suitable varieties and take proper care of your plants. If you are looking for veggies that don’t take lots of space and that will grow well even in shallow containers, you are in the right place.

Does that sound like something you would be interested in in your garden? Read on! In this essential guide, you’ll get to explore what vegetables can grow in 6 inches of soil and how to make the most out of them.

What Vegetables Can Grow in 6 Inches of Soil?

Don’t forget that planting your veggies (or flowering plants) in a smaller container with little substrate means you’ll probably have to water your plants more frequently. Adapt your watering schedule to your local weather conditions.

For instance, if you live in a hot and dry area, increase the extra moisture you give your plants. Also, consider amending the soil with vermiculite to improve drainage and retain moisture for longer.


This cool-season vegetable grows well in partial shade and won’t require much attention from your side, provided that you ensure it gets enough water. Use these tasty leafy green veggies in soups, salads, on sandwiches, or even as a topping on your pizzas. Don’t forget that this plant is susceptible to heat: only add it to your garden if you live in an area with mild summers.

Asian Greens

Asian greens like Bok Choi, Tatsoi, Choy Sum all tolerate well growing in shallow soil. They are not too demanding in terms of conditions (they will adapt to various environments), but you’ll have to keep them constantly moist.

Also, make sure you place your veggies under the full sun in a location that receives at least four hours of sunlight each day. Don’t forget to add a layer of mulch around your plants to maintain moisture for longer and regulate the soil temperature.


What Vegetables Can Grow in 6 Inches of Soil?

Garlic is another option if you are looking for a vegetable to grow in 6 inches of soil. It is a relatively easy-to-grow veggie with several uses in the kitchen. Place it under a sunny spot in well-draining soil.

If your substrate is heavy, consider adding some sand to encourage drainage. Also, try to amend it to get it to a pH level between 6.0 and 8.0. If you are planting more than one garlic, don’t forget to space them at least six inches apart. The soil must be moist but not wet. Overwatering your garlic may result in root rot and cause fungal diseases.


What Vegetables Can Grow in 6 Inches of Soil?

Kale will grow well in shallow containers, but it might never reach the sizes you’ll get when planting your veggie in deeper soil. Make sure the substrate is rich in nutrients for the best results.

Consider adding compost or manure (if necessary) to ensure your plants get the nitrogen they need to grow dense. Kale must receive at least five hours of direct sunlight to be healthy. Harvest your leaves when they get to the size of your hand to boost production.


What Vegetables Can Grow in 6 Inches of Soil?

Also, consider planting lettuce in your shallow containers: these veggies don’t need much space and will give you plenty of satisfaction (if you know how to take care of them). Consider adding a balanced fertilizer for even better results.

Don’t forget to keep the soil moist, especially when the plants are young. However, keep in mind that lettuce has a shallow root system, making it susceptible to overwatering, even though lettuce needs a lot of water in full sun. As with kale, you must choose a sunny location to grow this leafy green.


Radishes are easy-to-grow veggies that won’t mind growing in six-inches deep soil. Make sure you choose a sunny location for them and add organic material to the potting mix to encourage higher yields. The ground must stay soil but shouldn’t be soggy.

Related Article: When to Plant Garlic Zone 6