Giant Hyssop is a hardy, upright perennial known for its dense spikes of fragrant purple flowers that bloom from mid-summer into early fall. Its anise-scented foliage adds another sensory dimension, making it a standout in pollinator gardens, herbal borders, and prairie plantings. The tall, showy blooms are rich in nectar and act as a magnet for native bees, butterflies, and hummingbirds, offering extended seasonal support for pollinators.

Naturally found in dry prairies, open woodlands, and well-drained slopes, Giant Hyssop is highly drought-tolerant once established. It pairs beautifully with other sun-loving wildflowers and ornamental grasses, adding vertical interest and fragrance to naturalized landscapes. Its strong scent and aromatic foliage deter deer, giving it reliable resistance to grazing.