Fragrant perennial plants enhance gardens with their sweet perfume. Like other perennials, these plants come back year after year. Usually, they produce fragrant flowers, but in some cases, their foliage may also be fragrant, especially with walked on or crushed. Fragrant perennials, like lavender, phlox and many others, also lure butterflies and pollinators to the garden. While fragrant perennials can be planted in containers, perennial beds and borders, many gardeners like to plant them near walkways and entrances where their fragrance can be enjoyed by passersby. Because many fragrant perennial plants are also good for cut flowers, they're suitable for cutting gardens, too. When buying fragrant perennials for sale online, make sure they're suitable for your grow zone. Other considerations include their light requirements (full sun, partial shade or full shade), soil requirements, mature height and spread, bloom time and flower colors.