Creating a woodchuck-resistant outdoor plant box requires selecting plants that naturally deter these persistent garden pests. Woodchucks, also known as groundhogs, are notorious for nibbling on tender greens, but certain plants can help protect your garden. Here are the best options to consider:

1. Lavender: Its strong fragrance repels woodchucks while adding beauty to your plant box.

2. Mint: Aromatic and invasive, mint is unappealing to woodchucks and other pests.

3. Marigolds: These bright flowers emit a scent that deters woodchucks and other animals.

4. Daffodils: Toxic to woodchucks, these spring blooms are a safe bet for pest control.

5. Rosemary: This hardy herb’s strong scent keeps woodchucks at bay.

For added protection, consider planting these in raised or enclosed plant boxes. Combining these plants with physical barriers like fencing can further enhance your garden’s defense. Happy gardening!