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Pros and Cons of Fabric Grow Bags for Vegetables

Some gardeners love fabric grow bags; others don’t. Here’s how to find out if they’re right for you.

fabric grow bags

In some universe, there’s an older version of me sitting in a rocking chair on a big farmhouse porch, looking in disbelief at the latest gardening catalog. I can hear myself now: “Fabric grow bags? What’s with all these newfangled things. Back in my day we just put seeds in the dirt.”

These “newfangled” things actually have a lot of benefits for gardeners, as it turns out. But what exactly are fabric grow bags? They’re also known as fabric pots, and they are pretty much what you think they are: fabric bags that you can grow plants in. They can be small, one-gallon containers, and you can get large, 200-gallon containers.

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How to make the right choice about fabric grow bags

Look up any gardening guide, and you’ll see that almost all plants need “well-drained soil.” That’s especially true in container gardening, where there’s limited space for too much water to go. One of the big advantages that many fabric grow bags offer is excellent drainage. This drainage also leads to healthier root systems.

Without getting too sciency, the porousness of fabric grow bags leads to dryer soil near the edges of the container, where there is more contact with the air. When the plant’s roots reach that drier soil and the air, they stop growing, so you don’t end up with root bound plants. That’s the claim to fame for these bags, but what other advantages do they offer?

The pros of fabric grow bags

  1. The breathable fabric allows heat to escape, keeping the soil cool on hot summer days.
  2. Fabric grow bags are easy to store. Simply clean them and fold them up when you aren’t using them and they can fit into compact storage spaces.
  3. They’re versatile. Built-in handles make them easy to move.
  4. They don’t require construction. Larger fabric grow bags can easily be used as a raised bed without the need for the tools to build one.
  5. Transplanting is simple and easy. Because fabric grow bags are so easy to move, you can start your seeds indoors. Then when the time comes to transplant them, you can just pick up the entire bag and “plant” it outdoors.

Image of vegetables in a fabric grow bag

The cons of fabric grow bags

One of the big advantages to using fabric grow bags is that they drain quickly and easily. That also happens to be one of the big disadvantages. Because there is so much exposure to the air, the soil can dry out much faster than it does in a terra cotta, wood, or stone container. This means your plants will use more water, which means you’ll need to water them more often. Here are more of the disadvantages.

  1. They aren’t always eco-friendly. Surprisingly, a large number of fabric grow bags are not biodegradable. They’re made with polypropylene, which is a petroleum-based thermoplastic.
  2. They won’t protect your plants when it’s cold. Just like the porousness of the material allows water to evaporate, it also allows heat to escape. This means you really need to pay attention to the weather if your plants are outdoors in early spring or late fall.
  3. They don’t last as long as other containers. While a stone container could last for decades you may only get four or five growing seasons from all but the best fabric grow bags.
  4. Large grow bags aren’t easy to move. Try picking up and moving a 50-gallon container full of soil. You’ll see what I mean.
  5. Fabric grow bags are not very stylish. Yes, I know beauty is in the eye of the beholder, but most of the bags are pretty drab. You certainly won’t get the variety of shapes and colors you get with ceramic planters.

Are fabric grow bags right for you in your garden? They definitely offer some advantages over container gardening. Ultimately, however, it depends on how you want to work with your vegetables. An attentive gardener could have great results with or without using these containers.

Have you used fabric pots in your garden? What would you say are the pros and cons of using them? I’d love to get your opinion in the comments below.

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Comments
  • Jennifer M.

    I used fabric bags for tomatoes last summer. It was great because I could make a garden in a sunny spot by the driveway without digging. I started my plants from seed in Jiffy pots, then put each one in its own 7 gallon fabric pot after the frost date and had a fantastic harvest all summer long.

    Reply
    • Amanda M.

      That’s great to hear! I haven’t tried tomatoes in them, but I’m sure they appreciate the drainage!

      Reply
  • I have an entire garden on my deck in grow bags. It is working beautifully! I have potatoes, peas, beans, tomatoes, squash, zucchini, cucumbers, carrots, peppers, cauliflower, broccoli, and onions. I am very happy with the results!

    Reply
    • Amanda M.

      That’s awesome to hear! I feel like they’re a bit of a hidden gem, they work really well for just about anything!

      Reply
  • I’ve started using them to keep the mint and some other herbs like chives contained. Allows me to keep them in the keyhole garden, but I don’t have to worry about mint runners taking over. And at the end of the season, I can bring them inside or move them all to one bed and cover with a greenhouse top and keep growing a little longer in our winter time.

    Reply
    • Amanda M.

      I love, love, love the idea of using them for things like mint. I love mint, but it’s such a bully in the garden, really needs to learn some manners 😉

      Reply
  • steve c.

    this is my first year using grow bags. so far the pros, no additions to the soil no rototiller no digging or crawling in my garden area no worry of over watering and now no limited space , sat in a chair while planting , easier using a good potting soil no PH testing, great mobility.
    cons, none so far.
    the bags allow me to have more plants and better variety. I am not limited to the size of my garden.
    the sides of my is rock. so I’ve placed 2×4’s parallel on the rock and put the bags on them.
    the only thing i have done was to raise the bags off of the ground so the fabric does not sit in the water unless there is any problem with the fabric rotting.

    Reply
    • Amanda M.

      So, so, so easy, right? You all are making me want to ditch by raised beds entirely and just grow in bags, ha!

      Reply
  • Nancy W.

    I’m growing a variety of plants in bags on my patio. I like the bags better than the 5 gallon buckets. The plants are thriving and if I had to move, I can take my garden with me!

    Reply

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