How to Garden with Grow Bags: A Practical Guide for Every Gardener

20 Gallon Grow bag with tomatoes

Gardening is rewarding, whether growing fresh vegetables, fragrant flowers, or leafy greens. However, not everyone has access to large garden plots or heavy pots.

Enter grow bags—an innovative solution for urban gardeners, space savers, and anyone looking for flexibility in their gardening routine.

I live in a rented urban duplex where space is limited and permanent garden beds are not feasible. Yet, I have successfully grown various types of vegetables, fruits, and flowers using grow bags.

In this blog post, we’ll explore everything you need to know about gardening with grow bags, from their advantages to how to use them effectively.


This post contains affiliate links, which means I’ll receive a commission if you purchase through my links, at no extra cost to you. Please read full disclosure for more information



Advantages of Grow Bags

Empty Fabric Grow Bag
  1. Lightweight and Portable
    Grow bags are incredibly lightweight, even when filled with soil, making them easy to move around. This portability allows you to adjust the placement of your plants based on sunlight or seasonal changes.

  2. Cost-Effective
    Grow bags are more affordable than traditional pots, especially if you’re planning to set up a large garden. Many are reusable, offering excellent value over time.

  3. Improved Drainage and Aeration
    The fabric of grow bags promotes better air circulation to plant roots and prevents waterlogging, which can lead to healthier, more robust plants.

  4. Space-Saving
    Grow bags are perfect for small spaces. They can be used on balconies, patios, or rooftops, allowing gardening in places where traditional methods might not be feasible.

  5. Environmentally Friendly Options
    Many grow bags are made from recycled or biodegradable materials, making them a greener alternative to plastic pots.



Types of Grow Bags

Plastic Grow Bags with potatoes planted

Grow bags come in a variety of materials and sizes. Common options include:

  • Fabric Grow Bags: Durable, breathable, and suitable for all types of plants.

    Find fabric grow bags here.

  • Biodegradable Grow Bags: Made from materials like coconut coir or jute, these can be planted directly into the ground.

    Find biodegradable grow bags here.

  • Plastic Grow Bags: Lightweight but less breathable. Best for temporary use.

    Find plastic grow bags here.

    *I have found that the plastic only last one season, yet they are a great budget option if funds are limited.

Choosing the Right Size

The size of your grow bag depends on the type of plant you’re growing. Here are some general recommendations:

Lemon Tree in 1 gallon grow bag
  • 1-3 Gallons: Herbs like basil, cilantro, and thyme.

    *Keep reading to see the products I recommend.

  • 5-7 Gallons: Beans, peppers, or small root vegetables like radishes and carrots.

  • 10 Gallons: Potatoes, large plants like zucchini, or small fruit trees.

  • 20 Gallon: Tomatoes, larger fruit trees.

    *Though many sources may say growing tomatoes in 5-10 gallon containers is fine, I have had the best success growing in 20-gallon grow bags. The difference in crop production is astounding.



Soil for Grow Bags

Grow bags require a light, well-draining potting mix. Avoid using regular garden soil, which is too heavy and can compact in a grow bag. Here’s an ideal mix:

Hand holding grow bag soil
  • 50% Potting Soil, Coco Coir, or Peat Moss: Provides structure and nutrients.

  • 25% Compost: Boosts organic matter and feeds your plants.

  • 25% Perlite, Vermiculite, or Sand: Ensures good drainage and aeration.

Find my preferred soil mix products here.


Does making your own mix sound too overwhelming? Here is a reputable quality soil mixed with the proportions you need.



Plants Suited for Grow Bags

Grow bags are versatile and can accommodate a variety of plants. Some great options include:

Potato Plant in Grow Bag
  • Vegetables: Tomatoes, peppers, lettuce, spinach, potatoes, and eggplants.

    *Find vegetable seeds here.

  • Herbs: Mint, parsley, oregano, chives, and rosemary.

    *Find herb seeds here.

  • Fruits: Strawberries and dwarf varieties of citrus or blueberries.

    *Find Free Seeds here

  • Flowers: Marigolds, Zinnias, and Nastursiums.

    *Find flower seeds here.




Watering Needs

Proper watering is crucial for grow bags, as their breathable material can cause soil to dry out faster than traditional pots.

This is perhaps the most significant drawback of using grow bags. These tips can help set you up for success:

Water coming from hose
  1. Water Regularly: Check soil moisture daily, especially in hot weather. The soil should feel moist but not soggy.

  2. Mulch the Surface: Adding a layer of mulch can help retain moisture.

    I use straw, pine bark, or dried grass clippings.

  3. Self-Watering Systems: Consider grow bags with built-in reservoirs for low-maintenance hydration.

    Find one here.

    Alternatively, a drip system such as this can help save you time and keep your plants thriving.




Conclusion

Peppers in Grow bag

Grow bags offer a flexible, affordable, and sustainable way to enjoy gardening, whether seasoned or just starting out.

They can yield beautiful blooms and bountiful harvests with the right soil, plant selection, and care.

So why not give grow bags a try? Transform your balcony, patio, or backyard into a lush oasis and experience the joy of growing easily.

Click here to browse my list of grow bags and gardening accessories I use and love.

What will you grow in your first (or next) grow bag? Comment below. 🌱

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