Growing a thriving garden in urban planter boxes is rewarding, but pests can be a challenge. Instead of reaching for chemicals, try companion planting—a natural method where certain plants grown together help repel insects and improve overall health. Here are some of the best pairings for your containers.
For your vegetable crops, consider aromatic herbs. Planting basil alongside tomatoes not only enhances flavor but effectively repels flies, mosquitoes, and tomato hornworms. Chives or garlic near lettuce and greens can deter aphids. Rosemary's strong scent can help protect beans and carrots from various pests.
Flowers are powerful allies. Marigolds are perhaps the most famous companion plant. Their roots emit a substance that deters nematodes in the soil, and their scent repels aphids and whiteflies. Plant them near tomatoes, peppers, or herbs. Nasturtiums act as a "trap crop," attracting aphids and cabbage worms away from your prized vegetables like kale or cucumbers.
When planning your planter box, group plants with similar light and water needs. Ensure the container is large enough to prevent competition for resources. This strategy, called intercropping, maximizes space and creates a biodiverse mini-ecosystem that is less appealing to pests. By strategically pairing these plants, you create a beautiful, productive, and naturally resilient urban garden.