Creating a thriving mint garden in outdoor plant boxes requires careful selection of companion plants that complement mint’s vigorous growth and aromatic qualities. Mint is a hardy herb that spreads quickly, so pairing it with plants that can coexist without competition is essential.

1. Basil – A perfect companion, basil shares similar sunlight and watering needs, enhancing flavor and deterring pests.

2. Lemon Balm – This citrus-scented herb thrives alongside mint, creating a refreshing and pest-resistant combination.

3. Chives – Their slender growth habit makes them ideal for sharing space with mint, while their pungent aroma repels insects.

4. Marigolds – These colorful flowers act as natural pest deterrents, protecting mint from aphids and other invaders.

5. Thyme – A low-growing herb, thyme complements mint without overcrowding, and both prefer well-drained soil.

For successful container gardening, ensure your outdoor plant boxes have adequate drainage and are placed in partial to full sun. Regular pruning of mint prevents it from overtaking other plants. By choosing the right companions, you can create a lush, aromatic mint garden that thrives in outdoor plant boxes.