Gentiana (gentian) plants are striking perennial flowers prized for their bold, often intense blue trumpet-shaped blooms and ornamental appeal in rock gardens, borders, and alpine-style plantings. These hardy, herbaceous perennials thrive in well-drained soil with consistent moisture and perform best in full sun to part shade, depending on variety. Known for their vibrant flowers that can attract pollinators, gentians add seasonal color and unique texture to garden landscapes.