Winter companion planting is a strategic approach to gardening that enables you to keep your garden productive even during the colder months. By carefully selecting and pairing plants that support each other's growth, you can significantly boost the resilience of your garden, enhance soil health, and maximize the use of limited space. Master gardeners often recommend specific plant combinations that are known to improve warmth retention in the soil, naturally repel pests, or enhance the exchange of essential nutrients between plants.