Creating a thriving outdoor plant box while keeping chipmunks at bay can be a challenge. These small, curious creatures often dig up or nibble on tender plants, but selecting the right varieties can deter them naturally. Here are the best chipmunk-resistant plants for your outdoor plant box:

1. Daffodils – These cheerful spring blooms contain lycorine, a compound that chipmunks find unpalatable. Plant them around the edges for a protective barrier.

2. Alliums – With their strong onion-like scent, alliums repel chipmunks and other garden pests while adding striking spherical blooms.

3. Lavender – Its fragrant oils are unappealing to chipmunks, making it a beautiful and functional choice for sunny spots.

4. Marigolds – The pungent aroma of marigolds deters chipmunks, and their bright flowers attract pollinators.

5. Rosemary – This hardy herb’s strong scent keeps chipmunks away, and it thrives in well-drained plant boxes.

For extra protection, consider mixing these plants with gravel mulch or installing a wire mesh barrier beneath the soil. By choosing chipmunk-resistant varieties, you can enjoy a lush, pest-free garden without harsh chemicals. Happy gardening!