Intercropping is a smart gardening technique that involves growing two or more plant species together to maximize space, improve soil health, and enhance productivity. Outdoor plant boxes are perfect for intercropping, as they provide controlled environments for optimal growth. Here are some of the best plants for intercropping in outdoor plant boxes:

1. Tomatoes and Basil: Tomatoes benefit from basil’s pest-repellent properties, while basil thrives in the shade provided by tomato plants.

2. Carrots and Radishes: Radishes grow quickly and loosen the soil, making it easier for carrots to develop deep roots.

3. Lettuce and Chives: Chives deter pests that commonly attack lettuce, and lettuce’s shallow roots won’t compete with chives for nutrients.

4. Beans and Corn: Beans fix nitrogen in the soil, benefiting corn, while corn provides support for bean vines to climb.

5. Spinach and Strawberries: Spinach grows well in the shade of strawberry plants, and both enjoy similar soil conditions.

By choosing the right companion plants, you can create a thriving, sustainable garden in your outdoor plant boxes. Happy gardening!