Guilds are intentional planting groups that reduce competition and increase helpful interactions. A guild asks how a small group of plants can work together because they each do different jobs well in the same space with similar growing conditions. A guild usually has one central plant or crop called the anchor, and then companions that help with things like pollination, soil cover, nutrient support, physical support, mulch, shade, or pest pressure. For example, the three sisters (corn, beans, and squash) can be seen as a guild. Corn gives structure, beans help with nitrogen, and squash shades the soil. The same logic can apply in any species grouping, for example blueberries. If blueberry becomes the anchor plant, we might plant lingonberry, cranberry, wintergreen, lowbush blueberry, and pine needle mulch within that guild creating a plant community. The highbush blueberry shrub gives the primary harvest and sets the pattern for the guild. Lowbush blueberry extends the berry layer closer to the ground. Lingonberry and cranberry help fill space near the soil surface while adding more edible yield. Wintergreen adds another low growing woodland plant that fits the same acidic and shaded conditions. Pine needle mulch helps hold moisture, protect the roots, and support the acidic conditions blueberries prefer. Each within the guild can survive in the conditions blueberries demand, low pH.