What to Grow in 7 Gallon Grow Bags: Complete Planting Guide

Introduction

A 7 gallon grow bag is a versatile container size for a wide range of crops. It balances space and productivity. In this guide, you’ll learn exactly what you can grow in a 7 gallon grow bag.

What Can You Grow in 7 Gallon Grow Bags?

7 gallon grow bags can handle medium to large plants. They support deeper roots, larger plants, and higher yields.

Fruiting Vegetables (Top Performers)

These plants benefit the most from the extra root space.

✅ Tomatoes (determinate or small indeterminate).

✅ Peppers (bell, jalapeño, chili).

✅ Eggplant.

✅ Kale (baby or compact varieties).

If you're wondering what can you grow in 7 gallon grow bags, this category delivers the best results.

Root Vegetables

The deeper soil allows proper root development.

✅ Potatoes.

✅ Carrots (full-size varieties).

✅ Beets.

✅ Turnips.

Leafy Greens (Higher Volume Harvest)

You can grow more per bag compared to 3 or 5 gallon sizes.

✅ Lettuce.

✅ Kale.

✅ Swiss chard.

✅ Spinach.

Herbs (Single or Mixed Planting)

More space = larger, bushier herbs.

✅ Basil.

✅ Rosemary.

✅ Mint (best grown alone).

✅ Parsley.

Small Fruits

Some fruits thrive surprisingly well in 7 gallon fabric pots.

✅ Marigolds.

✅ Petunias.

✅ Pansies.

✅ Alyssum.

Flowers can also attract pollinators, improving your overall garden.

What NOT to Grow in 7 Gallon Grow Bags

Even though 7 gallons is versatile, some plants still need more space:

✔️ Large indeterminate tomatoes (better in 10–15 gallon).

✔️ Fruit trees.

✔️ Pumpkins and large squash.

✔️ Corn.

How Many Plants Per 7 Gallon Grow Bag?

Here’s a quick guideline:

✅ Tomatoes: 1 plant.

✅ Peppers: 1–2 plants.

✅ Potatoes: 2–3 plants.

✅ Leafy greens: 4–6 plants.

✅ Herbs: 2–4 plants.

✅ Strawberries: 4–6 plants.

Spacing is critical. Overcrowding reduces yield and airflow.

How Many Potatoes in a 7 Gallon Grow Bag?

This is one of the most searched questions.

✔️ Recommended Planting: 2–3 seed potatoes per 7 gallon grow bag.

✔️ Expected Yield: About 5–10 pounds of potatoes per bag. This depends on variety and care.

✔️ Pro Tips: Use loose, well-draining soil. Hill (add soil) as plants grow. Keep evenly watered.

Soil, Watering & Fertilizing Tips

How Much Soil for A 7 Gallon Grow Bag?

A 7 gallon grow bag requires around 1 cubic foot of soil.

Combine: compost, coco coir or peat moss, perlite for drainage.

How Often to Water 7 Gallon Fabric Pots?

In warm weather, this usually means watering 2–4 times per week. Ensure even moisture.

Fabric grow bags dry faster than plastic pots. Check daily in warm weather.

Feed Regularly

Use liquid fertilizer every 1–2 weeks.

Or slow-release fertilizer at planting.

Why Choose 7 Gallon Fabric Grow Bags?

✅ Great balance of size and yield.

✅ Suitable for most home gardening crops.

✅ Excellent drainage and aeration.

✅ Prevents root circling (air pruning).

✅ Easy to move compared to larger containers.

Conclusion

So, what to grow in 7 gallon grow bags? The answer includes tomatoes, peppers, potatoes, root vegetables, leafy greens, herbs, and even small fruits.

Check What Can You Grow in Grow Bags for a complete crop list across all grow bag capacities.

Related Article:

What to Grow in 5 Gallon Grow Bags

What Can You Grow in 10 Gallon Grow Bags