What size grow bag for Tomatoes? Know the Tricks

Growing Tomatoes in containers, pots, and grow bags is a common practice. Those who don’t have a lawn or garden can use a container as an alternative for gardening. When it comes to growing tomatoes, it is quite easy to grow in a container. Before starting the plantation you have to decide what size of container or grow bag you need for a tomato plant.

Indeed the selection depends directly on the choice of tomato variety. There are certain factors that you should care about in this process.

What size grow bag for Tomatoes
What size grow bag for Tomatoes?- minimum 8 inches maximum 14-inch containers.

I have another article published: Which fruit is the King of Fruits? Interesting facts

What size of grow bag is best for tomatoes?

Between 8-inch(15-17 cm) up to 14-inch(30 cm or bigger) grow bags are suitable for Tomato plantations.

Minimum 10-15 inch diameter grow bag or pot is best for any Tomato Plant. The depth should be at least 8-12 inches.

First of all, why we are discussing only grow bags. Is it necessarily a grow bag for tomato, can’t we grow it in a standard clay or plastic pot?

The answer is Yes, we can grow tomatoes in any pots and containers. The only difference is the cost, comfort, and portability of grow bags- It gives an advantage.

What size grow bag for tomatoes?– A 5-7 gallon or minimum 8-10 inch grow bag is best for any tomato variety. Although you can grow some varieties of tomatoes in just 1 gallon or 6-8inch pot or grow bag. In fact, I have grown 3 tomato plants in a 7-inch plastic bag, One of them is still fruiting. So Who knows It may survive the hot summer this year and still fruit the next season. hoping for the best.

You can grow multiple tomato plants in Grow bags with size 20-30 gallons or at least 14inch diameter.

Interesting fact: You can grow a Tomato plant successfully in a soda bottle or even in your old water bottle. Also, beautiful hanging pots or planters can be prepared with tomatoes. You need some knowledge and extra care that’s it.

Learn More: Are Tomatoes Fruits or Vegetables?- True Answer with Facts.

Best Grow Bags for Tomatoes

  1. Tvird Potato Grow Bags 2 Pack 10 Gallon.
  2. Garden4Ever Grow Bags 5-Pack 7 Gallon.
  3. ACRUI 5 Pack 3 Gallon Grow Bags.
  4. CicoYinG 4-Pack 10 Gallon Potato Grow Bags.
  5. Smart Pots 10020 Smart Pot 20 gallon.
12-inch-round-grow-bag for tomato
12-inch grow bag ideal for all tomato varieties

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Factors for choosing Grow bags or pots for Tomatoes

  • Variety of Tomato: It is an essential consideration. The requirement of a pot or grow bag greatly depends on the variety of tomato you have selected. Smaller varieties like cherry tomatoes need smaller containers to grow than any of the standard kitchen tomato varieties.
  • Soil condition: It is the second and an important consideration for growing tomatoes. Every tomato variety needs a highly nourished soil mix. If your garden soil lacks potassium or nitrogen then you should definitely use a bigger grow bag or pot for tomato. Else Using a smaller grow bag for tomato will yield the same.
  • Indoor or Outdoor tomato Plantation: Tomato is an ideal fruit vegetable for indoor as well as outdoor. You will need a bigger grow bag for the outdoor plantation of Tomatoes. Tomato plants do well inside a greenhouse. But it creates another factor- whether you have a greenhouse or not?
  • Temperature requirements for Tomato: Tomato loves warm temperatures. We can grow tomato year long within a greenhouse. you have to be little care full while growing tomatoes outdoors. Always remember it cannot survive frost and burning sun. So if the temperature in your region is always high or too cold, then use a bigger grow bag for tomatoes.
  • Availability of Water for tomatoes: Smaller the pot more water you need. You have to water your tomato plants at regular interval especially if the pots are smaller than recommended. A tomato needs lots of water still it cannot survive in soggy soil. So this is a tricky part. If you are growing tomato in a pot smaller than 8 inches then you may have to water the plants twice or even more times every day.
  • Portability for Tomato plants: If you need to move the tomato plants more often then a grow bg with a handle is best for you. Plastic or clay pots have a significant disadvantage for this consideration. It can be quiet troublesome to move the standard pots. I think this is why I like to grow bags over standard pots and containers.
  • Location for Tomato Plants: Selection of a specific size grow bag certainly depends on the location factor where you want to place the plant. Think of a situation, If the base is of concrete then in summer days it will bake the root. Opposite to that a bigger pot or grow bag in the rainy season can create the problem of root rot. So planing for tomatoes in spring should consider the environment in the monsoon and fall.
  • Storage: This is certainly nothing to do with plantation. Instead, it is important especially if you have less space for plants. Also in this situation a grow bag is the best option. you can fold it and store it anywhere you want. An unused grow bag does not require the entire spot as a standard pot. Still big or small is nothing to do with this purpose.

Before leaving you should read this: Do Banana have seeds?

A 5 gallon grow bag with at least an 8-inch diameter should be enough for your little tomato plant. If you need some extra help then do let me know. I am here to help you out. Write down your valuable comment below for today’s topic- What size grow bag for Tomatoes? I am waiting for your reply.

Live the Green!


Hi, My name is Sukant. I am an I.T professional. Gardening for me is not just a hobby, it's a way of living life with nature. My Ancestors were Commercial farmers: So I personally feel attached to the green. I am not an expert, I'm here only to share my gardening experiences. It's always Refreshing.

2 thoughts on “What size grow bag for Tomatoes? Know the Tricks

    1. Yes, definitely you can. In fact, the plants will grow fine. The only problem you will face is with the size and number of fruits. A good quality fruit of beefsteak tomato can weigh 450-600 grams or 1-1.3 lb. In a small space the size of tomato fruit can reduce up to 40% and nearly 60% of flowers will fail to fertilize. So for a try, it is possible but for best results give them a separate grow bag. And Yes, Please share your growing experience to help others.

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