Just like people, our plants benefit from having the right partner at their side. The concept of companion planting has been around for thousands of years. The Native Americans practiced it actively. Most die-hard gardeners have heard of the concept of the “Three Sisters.” This is a common term used to describe the mutually beneficial relationship between beans, corn and squash. The corn acts as a natural trellis for the beans that love to climb. The beans add nitrogen to the soil, in return benefitting the corn. The broad leaves of the squash provide shade at the soil level, keeping weeds at bay and the soil moist on hot sunny days.