Border plant is a term used to describe plants that are suitable for planting along the edges of gardens, lawns, and other outdoor spaces. Two examples of border plants are hosta and avens. Hosta is a genus of plants in the family Asparagaceae, with large, heart-shaped leaves and tall flower stalks. Avens is a genus of flowering plants in the rose family, with small, five-petaled flowers and long, narrow leaves. Both hosta and avens are popular choices for border plants due to their attractive foliage and flowers.