Vegetable Container Size Chart (2024)

Use our Vegetable Container Size Chart (included within the body of this post below)to finally know what pot sizes you need for the vegetables you are planting. No more guessing! For new gardeners, especially those growing in pots and containers for the first time, knowing what size pot to grow your precious vegetables in can be hard to understand. Luckily, we have created this easy-to-use Vegetable Container Size Chart to help you make the best choice possible. Before reading through our Vegetable Container Size Chart, there are some things that you should know as a new gardener that will help you understand why the sizing chart is arranged as it is.

If you are planting a garden for the first time, especially in a warm climate like Zone 9 or 10, remember that the smaller the container, the quicker it will dry out. This happens because the container has more surface area than in-ground plantings, allowing hot, dry air to circulate around the pot to wick away moisture. Additionally, as shown in the Vegetable Container Size Chart, the larger the plant, the more soil it needs. Small pots can only hold a small amount of soil. The roots of a happy, healthy plant planted in a pot too small for it will quickly fill up the space and become root-bound, depriving the plant of receiving the water, oxygen, and nutrients needed.

For the reasons mentioned above, you can see that if you are unsure what size to choose when planting a vegetable, choose the larger one if given a choice between two pots! There will be more room for the plant’s roots to grow, and the pot will not dry out as quickly, resulting in a happier, healthier plant.

Plants grown in containers of any size, from small 6″ pots to large, raised beds, will dry out more quickly than in-ground plants. To help prevent excess moisture evaporation, add mulch around your plants inside the pot. The mulch will keep your container looking tidy and help your plants keep moisture in the soil.

When using our Vegetable Container Size Chart, keep in mind these are suggestions. We always encourage our growers to play around with what works for them using what materials they have on hand.

Vegetable Container Size ChartPlantMinimum SizePreferred SizeNumber of Plants Per PotCommentsArtichokes20 gallon or 16-18″ widewine barrel size1-2Artichokes are short-lived perennials and need deep rich soil.Basil1 gallon; 6-7 inch diameter2 gallon; 8-9 inch diameter3-4Basil can grow in clusters, but you will get larger leaves with properly separated plants.Beans, Bush2 gallon; 8-9 inch diameter5 gallon; 12 inch diameter2-4Beans such as OS Blues and other bush varieties grow on smaller, more compact vines.Beans, Pole2 gallon; 8-9 inch diameter5 gallon; 12 inch diameter2-4Pole beans require a trellis to grow up.Beets1 gallon; 6-7 inch diameter2 gallon; 8-9 inch diameter3-4Beets are an excellent plant for any container over one gallon. A long shallow container works great!Broccoli5 gallon; 12 inch diameter10-15 gallon; 16-18 inch diameter1Plants need deep rich soil to develop large broccoli heads.Cabbage5 gallon; 12 inch diameter10-15 gallon; 16-18 inch diameter1Plants need deep rich soil to develop large cabbage heads.Carrots1 gallon; 6-7 inch diameter2 gallon; 8-9 inch diameter3-4Excellent for any container over one gallon. A long shallow container works great!Cauliflower5 gallon; 12 inch diameter10-15 gallon; 16-18 inch diameter1Plants need deep rich soil to develop large cauliflower heads.Celery1 gallon; 6-7 inch diameter2 gallon; 8-9 inch diameter3-4Excellent for any container over one gallon. A long shallow container works great!Chard2 gallon; 8-9 inch diameter5 gallon; 12 inch diameter1-2Proper spacing helps with fungal disease management.Cilantro1 gallon; 6-7 inch diameter2 gallon; 8-9 inch diameter2-4Cilantro can be grown in crowded plantings.Collards2 gallon; 8-9 inch diameter5 gallon; 12 inch diameter1-2Proper spacing helps with fungal disease management.Corn20 gallon or 16-18″ widewine barrel sizePlant in blocks of 15+ plants to ensure pollinationPlant corn in raised beds or very large containers for best results if not planted in-ground.Cucumbers5 gallon; 12 inch diameter10-15 gallon; 16-18 inch diameter2-3Cucumbers must have a trellis to grow up.Eggplant2 gallon; 8-9 inch diameter5 gallon; 12 inch diameter1Eggplant is to grow in pots!Fennel1 gallon; 6-7 inch diameter2 gallon; 8-9 inch diameter1-2The more plants per container, the smaller the plant size.Garlic2 gallon; 8-9 inch diameter5 gallon; 12 inch diameter1-2Proper spacing helps with fungal disease management.Greens (Arugula, Leaf Lettuce, Spinach)1 gallon; 6-7 inch diameter2 gallon; 8-9 inch diameter3-4Greens prefer cool weather; harvest and water regularly.Kale2 gallon; 8-9 inch diameter5 gallon; 12 inch diameter1-2Proper spacing helps with fungal disease management.Kohlrabi5 gallon; 12 inch diameter10-15 gallon; 16-18 inch diameter1-2The more plants per container, the smaller the plant size.Melons5 gallon; 12 inch diameter10-15 gallon; 16-18 inch diameter1-2If growing one plant per container, move containers close for pollination.Okra5 gallon; 12 inch diameter10-15 gallon; 16-18 inch diameter5-10The container can be crowded for smaller plants.Onions1 gallon; 6-7 inch diameter2 gallon; 8-9 inch diameter4-5Allow more room when growing bulbing onions.Parsley1 gallon; 6-7 inch diameter2 gallon; 8-9 inch diameter2-4Parsley can be grown in crowded plantings.Peas2 gallon; 8-9 inch diameter5 gallon; 12 inch diameter3-4Peas must have a trellis to grow up.Peppers2 gallon; 8-9 inch diameter5 gallon; 12 inch diameter1The more plants per container, the smaller the plant size.Pumpkins5 gallon; 12 inch diameter10-15 gallon; 16-18 inch diameter1-2If growing one plant per container, move containers close for pollination.Radishes1 gallon; 6-7 inch diameter2 gallon; 8-9 inch diameter7-8A long shallow container works great!Squash5 gallon; 12 inch diameter10-15 gallon; 16-18 inch diameter1-2If growing one plant per container, move containers close for pollination.Tomatoes, Determinate5 gallon; 12 inch diameter10-15 gallon; 16-18 inch diameter1Determinate tomatoes are best suited for growing in pots.Tomatoes, Indeterminate20 gallon or 16-18″ widewine barrel size1-2Must have a trellis to grow up. See Blog: DIY Tomato Trellis SystemsTomatillos5 gallon; 12 inch diameter10-15 gallon; 16-18 inch diameter1Best to grow one plant per container.
Vegetable Container Size Chart (2024)

FAQs

What size container for each vegetable? ›

Vegetable Container Size Chart
PlantMinimum SizePreferred Size
Radishes1 gallon; 6-7 inch diameter2 gallon; 8-9 inch diameter
Squash5 gallon; 12 inch diameter10-15 gallon; 16-18 inch diameter
Tomatoes, Determinate5 gallon; 12 inch diameter10-15 gallon; 16-18 inch diameter
30 more rows

How many vegetables can I grow in a 5 gallon container? ›

In a 5-gallon bucket you can grow: • 1 tomato, pepper or zucchini, or • 3-4 lettuce, or • 1 cabbage or broccoli (with 15 radishes or 8 spinach), or • 15 carrots or beets, or • 6 bulbing onions, garlic or leeks, or • 8 mustards or turnips for greens.

What is the best container for vegetable gardening? ›

Select An Adequate Container

Plastic or clay pots, buckets, baskets, and wooden boxes are suitable for most vegetables. Plastic tubs and garbage barrels provide space for roots of rank-growing vegetables, such as cucumbers and tomatoes.

How deep do pots need to be for vegetables? ›

Some types of plants, such as lettuce and herbs, have shallow roots. So, they can thrive in a gardening container that's only 6 inches deep. Other plants like tomatoes, carrots, and potatoes require more rooting depth. They need a planting box that's at least 12 inches deep.

What size container do I need for tomato plants? ›

For maximum production, the ideal pot size is 18-inch diameter for determinate tomatoes and 24-inch diameter for indeterminate tomatoes.

What size containers to grow cucumbers? ›

Ideal pots are a foot or more in depth, and that size will increase your harvest. A pot that's 20 inches wide can accommodate four to six plants. Two or three plants will fit in a five-gallon bucket or grow one cucumber in a 10-inch-wide container.

How many tomatoes can you grow in a 5 gallon bucket? ›

The standard size of these buckets allows for at least two tomato plants per bucket. This makes them an efficient use of space in small gardens or balcony spaces.

How many potatoes will grow in a 5 gallon bucket? ›

A: A five-gallon bucket will give you about two pounds of potatoes. It's a fun and no-fuss method of gardening!

Is a 5 gallon grow bag big enough for tomatoes? ›

Choose a grow bag size that will accommodate the number of tomato plants you want to grow. A 5-gallon bag is suitable for one plant, while a 10-gallon bag can accommodate two plants.

What is the easiest vegetable to grow in a container? ›

Lettuce. Lettuce is one of the easiest vegetables to grow in a container. It grows quickly and has shallow roots.

Can you use potting soil for container vegetables? ›

Use Premium Potting Soil

To grow a successful container vegetable garden, start with great soil - not soil from your yard, but what's known as a potting mix. These mixes, like Miracle-Gro® Potting Mix, contain the right blend of materials to create an ideal growing environment for roots inside a pot.

How much space does each vegetable need? ›

Vegetable Spacing Guide
VegetableInches between plantsInches between rows
Cabbage18-2424-36
Cardoon18-2436-48
Carrot2-412-24
Cauliflower18-2424-36
55 more rows
Mar 27, 2007

Can you grow multiple vegetables in one container? ›

Keep It Simple. "Don't mix too many veggies in a pot. Keep it simple, like one tall vegetable in the center surrounded by a few flowers. Or, some big bold vegetables like okra and squash do better alone."

What vegetables grow well together in a container? ›

Best Container Plant Companions
  • Beans, Carrots, and Squash. Jung Favorites: Top Crop Beans, Adelaide Hybrid Carrots, and Sunburst Hybrid Squash.
  • Eggplant and Beans. Jung Favorites: Epic Hybrid Eggplant and Provider Beans.
  • Tomatoes, Basil, and Onions. ...
  • Lettuce and Herbs. ...
  • Spinach, Chard, and Onions.
May 6, 2020

What size container for zucchini? ›

How to Plant Zucchini in Pots. A container with a diameter of at least 24 inches (61 cm.) and a minimum depth of 12 inches (31 cm.) is best for container grown zucchini. Any type of container works well as long as it has at least one good drainage hole in the bottom.

Top Articles
Latest Posts
Article information

Author: Catherine Tremblay

Last Updated:

Views: 6468

Rating: 4.7 / 5 (67 voted)

Reviews: 82% of readers found this page helpful

Author information

Name: Catherine Tremblay

Birthday: 1999-09-23

Address: Suite 461 73643 Sherril Loaf, Dickinsonland, AZ 47941-2379

Phone: +2678139151039

Job: International Administration Supervisor

Hobby: Dowsing, Snowboarding, Rowing, Beekeeping, Calligraphy, Shooting, Air sports

Introduction: My name is Catherine Tremblay, I am a precious, perfect, tasty, enthusiastic, inexpensive, vast, kind person who loves writing and wants to share my knowledge and understanding with you.