A “Guild” is a combination of plants put together which support each other. The most famous guild of all would be the Three Sisters of Mexico, comprising of beans, corn and squash.
The Corn supports the growing bean vines, which in return make sure the corn stalk is strong.
The Bean provides nitrogen to the Squash and the Corn.
The Squash shades the ground and retains water and control weeds.
Creating guilds in the garden allows us to have the ability to design and grow a highly productive garden as well as having a clear understanding of the win/win situation as opposed to a parasitic relationship.
Read more under Companion Planting.
(Source: Outdoor Classrooms by Carolyn Nuttall and Janet Millington)