These fabric grow bags are also called fabric pots. Available in sizes from compact 1-gallon bags to massive 400-gallon containers. Ideal for home gardeners, greenhouse growers, nurseries, and farms.
Grow bags can support everything from herbs and leafy greens to fruit trees and commercial-scale crops. Different plants require different root space, soil volume, and moisture capacity. So choosing the right grow bag size is important.
You will learn what you can grow in grow bags. This complete guide will help you choose the right grow bag size for crops.
Before choosing what to grow in fabric pots, it helps to understand why they work so well.
✔️ Excellent aeration for stronger root systems.
✔️ Air pruning prevents root circling.
✔️ Better drainage than plastic pots.
✔️ Portable and space-efficient.
These fabric pots can support nearly every type of crop when matched with the correct size. Suitable for small and large-scale growing.
Small grow bags are best for compact plants with shallow root systems. These sizes are widely used for herbs, leafy greens, seed starting, and nursery propagation.
✅ Lettuce.
✅ Spinach.
✅ Arugula.
✅ Green onions.
✅ Basil.
✅ Cilantro.
✅ Parsley.
✅ Radishes.
✅ Small flowers and companion plants.
These crops grow quickly and do not require deep soil volume.
✔️ Balcony gardening.
✔️ Indoor growing.
✔️ Herb production.
✔️ Greenhouse seedling systems.
✔️ Retail nursery starter plants.
✅ Water more frequently because smaller bags dry out faster.
✅ Use lightweight, high-quality potting mix for better drainage.
✅ Plant densely for cut-and-come-again greens and herbs.
✅ Place in partial shade during extreme summer heat.
What to Grow in 1-2 Gallon Grow Bags
What to Grow in 3 Gallon Grow Bags
The 5–10 gallon range is the most versatile size category for home gardeners. These grow bags provide enough root space for many productive vegetable crops. They are also easy to move and maintain.
They are also commonly used by greenhouse growers and small-scale market farms for high-value crops. If you’re asking what to plant in grow bags, this size covers the widest variety.
✅ Tomatoes (determinate and indeterminate).
✅ Bell peppers and chili peppers.
✅ Eggplant.
✅ Bush beans.
✅ Carrots.
✅ Beets.
✅ Kale.
✅ Swiss chard.
✅ Cucumbers (compact varieties).
5–10 gallon grow bags offer:
✔️ Good root depth.
✔️ Stable moisture retention.
✔️ High productivity in small spaces.
✔️ Easy patio and backyard management.
This size range is commonly used for:
✔️ Patio vegetable gardens.
✔️ Raised-bed alternatives.
✔️ Greenhouse tomato production.
✔️ Small commercial container gardens.
✅ Use cages or stakes for tomatoes and peppers.
✅ Grow one large crop per bag for best airflow and yield.
✅ Add compost regularly during the growing season.
✅ Use drip irrigation for greenhouse or multi-container setups.
What to Grow in 5 Gallon Grow Bags
What to Grow in 7 Gallon Grow Bags
What to Grow in 10 Gallon Grow Bags
Large grow bags support larger root systems, heavier-feeding crops, and higher overall yields. These sizes are excellent for gardeners who want more production from fewer containers. They are also commonly used in nursery growing and intensive backyard food production.
✅ Potatoes.
✅ Zucchini.
✅ Cucumbers.
✅ Broccoli.
✅ Cauliflower.
✅ Dwarf blueberry bushes.
✅ Dwarf citrus trees.
✅ Large pepper plants.
15–25 gallon grow bags provide:
✔️ Better moisture stability.
✔️ More nutrient capacity.
✔️ Stronger root development.
✔️ Higher seasonal yield potential.
These sizes are ideal for:
✔️ Backyard food gardens.
✔️ Greenhouse vegetable systems.
✔️ Nursery container growing.
✔️ Compact fruit production.
✅ Add mulch to reduce moisture loss.
✅ Space plants properly to improve airflow.
✅ Feed regularly because larger plants consume nutrients quickly.
✅ Rotate crops between seasons to maintain healthy soil.
What to Grow in 15 Gallon Grow Bags
What to Grow in 20 Gallon Grow Bags
What to Grow in 25 Gallon Grow Bags
At this size range, grow bags function similarly to raised beds. They can support multiple plants in a single container.
These large fabric pots are increasingly used in:
✔️ Greenhouse systems.
✔️ Market gardens.
✔️ Nursery yards.
✔️ Urban farming projects.
✅ Multiple tomato plants.
✅ Squash and pumpkins.
✅ Sweet corn.
✅ Watermelons.
✅ Large herb gardens.
✅ Dwarf and semi-dwarf fruit trees.
✅ Companion planting combinations.
✔️ Tomatoes + basil.
✔️ Cucumbers + dill.
✔️ Peppers + onions.
✔️ Corn + beans + squash.
✅ Treat large grow bags like mini raised beds.
✅ Install drip irrigation for consistent watering.
✅ Use nutrient-rich soil blends with compost and perlite.
✅ Place in full sunlight for maximum production.
What to Grow in 30–100 Gallon Grow Bags
Giant grow bags are built for large-scale growing systems and long-term crops. These oversized containers are widely used for commercial growing, greenhouse projects, orchards, and landscape applications.
✅ Full-size fruit trees.
✅ Grapevines.
✅ Large berry patches.
✅ Perennial crops.
✅ Mixed vegetable beds.
✅ Orchard container systems.
✅ Landscape shrubs and decorative plants.
Large grow bags are frequently used for:
✔️ Greenhouse tree production.
✔️ Nursery stock growing.
✔️ Vineyard container systems.
✔️ Urban landscaping projects.
✔️ Commercial fruit production.
✅ Position bags before filling because they become extremely heavy.
✅ Install irrigation systems for efficient watering.
✅ Use premium soil blends with long-term fertility.
✅ Monitor drainage carefully in permanent growing setups.
What to Grow in 150–400 Gallon Grow Bags
👉 Swipe the table left/right to view all size details.
| Grow Bag Size | What to Grow |
|---|---|
| 1–3 Gallon | Herbs, leafy greens, radishes |
| 5–10 Gallon | Tomatoes, peppers, carrots, kale |
| 15–25 Gallon | Potatoes, cucumbers, zucchini |
| 30–100 Gallon | Corn, squash, fruit trees |
| 150–400 Gallon | Trees, vines, mixed crops |
Deep-rooted plants need larger containers to reach full production potential.
Too many plants in one grow bag can reduce airflow. This increases disease pressure, and lower yields.
A balanced mix of: compost, coco coir or peat moss, perlite. It helps improve drainage, aeration, and nutrient retention.
Fabric pots dry faster than plastic containers, especially in: hot climates, greenhouses, commercial growing environments.
Nutrients leach more quickly from grow bags due to improved drainage. So regular fertilization is important for healthy growth.
👉 Swipe the table left/right to view all size details.
| Grow Bag Size | Soil Needed (Cubic Feet) | Approx. Quarts) |
|---|---|---|
| 1–2 Gallon | 0.15 – 0.30 cu ft | 5 – 10 qt |
| 3 Gallon | ~0.4 cu ft | ~15 qt |
| 5 Gallon | ~0.7 cu ft | ~25–28 qt |
| 7 Gallon | ~1.0 cu ft | ~35–40 qt |
| 10 Gallon | ~1.3 – 1.5 cu ft | ~50–60 qt |
| 15 Gallon | ~2.0 cu ft | ~75 qt |
| 20 Gallon | ~2.5 – 3.0 cu ft | ~95–110 qt |
| 25 Gallon | ~3.5 cu ft | ~130 qt |
| 30–100 Gallon | ~4 – 13+ cu ft | ~150 – 500 qt |
| 150–400 Gallon | ~20 – 54+ cu ft | ~750 – 2000 qt |
For best results, fill grow bags to approximately 90–95% of total capacity. Leave 1–2 inches of space at the top for watering and airflow.
So, what can you grow in grow bags? The answer is almost anything when you choose the correct size. From herbs and leafy greens to tomatoes, potatoes, fruit trees, and commercial crops.
Fabric grow bags provide a flexible and efficient growing solution for nearly every gardening style. Select the right grow bag size will help improve plant health, root development, and overall yield.
You can grow vegetables, herbs, fruits, flowers, and even trees in fabric grow bags. The ideal plant depends on the grow bag size and root depth requirements.
5–10 gallon grow bags are ideal for many vegetables. For example, tomatoes, peppers, eggplants, and leafy greens.
Yes. Root crops grow very well in fabric pots. For example, carrots, potatoes, radishes, and beets.
Yes. Fabric grow bags provide better aeration and drainage than traditional pots. They usually require more frequent watering, especially in hot weather or greenhouse environments.
Yes. Large grow bags are widely used in greenhouses, nurseries, orchards, and commercial container farming.
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