Creating a mole-resistant outdoor plant box requires selecting plants that naturally deter these burrowing pests. Moles dislike strong scents and certain textures, so incorporating these traits into your garden can help keep them at bay. Here are some of the best plants to include:

1. Daffodils (Narcissus) – These vibrant flowers contain toxic compounds that moles avoid. Plant them around the edges of your box for added protection.

2. Alliums (Garlic, Onions, Chives) – Their pungent smell repels moles and other pests. Alliums are also easy to grow and add flavor to your kitchen.

3. Marigolds (Tagetes) – Known for their strong fragrance, marigolds deter moles while attracting beneficial insects.

4. Fritillaria Imperialis (Crown Imperial) – This striking plant emits a musky odor that moles find unpleasant.

5. Castor Bean Plant (Ricinus communis) – While toxic if ingested, its roots release a scent that repels moles. Handle with care.

For extra protection, combine these plants with physical barriers like wire mesh beneath the soil. Regularly rotating crops and maintaining healthy soil can also discourage mole activity. By choosing the right plants, you can enjoy a beautiful, mole-free outdoor plant box all season long.