How to Grow Mint in a Large Container (Step-by-Step Vertical Garden Guide)

Mint is one of the easiest herbs to grow, but it can quickly take over your garden if left uncontrolled. That’s why growing mint in a large container—especially a vertical planter like the one shown here—is the perfect solution. This smart gardening method saves space, increases yield, and creates a beautiful green display.

In this guide, you’ll learn exactly how to grow mint in a big container using a simple DIY vertical system.

Why Grow Mint in a Large Container?

Mint spreads aggressively through roots, making it difficult to manage in traditional garden beds. A large container keeps it contained while still allowing it to grow abundantly.

Using a vertical barrel planter offers several advantages:

  • Maximizes space by growing mint on all sides

  • Produces a higher yield in a small area

  • Improves airflow and reduces pests

  • Makes harvesting easier

This method is perfect for small gardens, patios, and urban farming setups.

What You Need

To build a mint-growing system like the one in the images, you’ll need:

  • A large plastic container or barrel

  • A drill (to make planting holes)

  • A PVC pipe (for central watering system)

  • Rich, well-draining soil mix

  • Mint cuttings or seedlings

Step-by-Step: How to Grow Mint Vertically

1. Prepare the Container

Start by drilling evenly spaced holes around the sides of the barrel. These holes will hold your mint plants. Make sure they are large enough for the roots but not too big to lose soil.

2. Install a Watering System

Place a PVC pipe in the center of the container and drill small holes along it. This allows water to reach all layers evenly, ensuring consistent moisture throughout the container.

3. Add Soil and Plant Mint

Fill the container gradually with soil. As you add layers, insert mint plants into the side holes. Keep the roots inside and the leaves outside. Continue until the container is full, then plant more mint on top.

4. Choose the Right Location

Mint grows best in partial to full sunlight. Place your container where it gets at least 4–6 hours of sunlight daily.

5. Water Properly

Pour water into the central pipe to distribute it evenly. Mint loves moist soil, but avoid overwatering to prevent root rot.

Tips for Faster Mint Growth

  • Prune regularly: This encourages bushier and healthier plants

  • Harvest often: Frequent cutting boosts new growth

  • Use organic fertilizer every few weeks

  • Ensure good drainage to keep roots healthy

When Will You See Results?

Mint grows quickly. Within a few weeks, you’ll notice it spreading through the holes and forming a lush green container—just like the final result in the images. In about 4–6 weeks, you can start harvesting fresh mint leaves.

Final Thoughts

Growing mint in a large vertical container is a game-changer for home gardeners. It’s space-efficient, easy to maintain, and incredibly productive. Whether you’re a beginner or an experienced gardener, this method helps you grow fresh, organic mint with minimal effort.

Start your own vertical mint garden today and enjoy endless fresh herbs right at home.