The Giant Miscanthus (Miscanthus x giganteus) is a fast-growing, clumping grass that thrives in temperate climates. This ornamental grass is perfect for outdoor gardens, reaching heights of 6ft-12ft and featuring vibrant green foliage that adds a touch of color to any garden. With a growth habit of clumping and a growth rate that is considered fast, this perennial grass is ideal for those looking to add a unique and eye-catching element to their outdoor space. These are sold in clumps of live rhizomes.