Eryngium yuccifolium, also known as Rattlesnake Master, has sword-shaped, silver-green leaves up to 3’ long that are edged with small spines. In midsummer Eryngium yuccifolium produces tall, stiff flower stems topped by small clusters of unique prickly, greenish-white globes, which are surrounded by longer pointed bracts. Rattlesnake Master is native from the eastern Great Plains to the Atlantic Coast. Eryngium yuccifolium prefers full sun and well-drained soil, but is also tolerant of clay soil. It also is good in coastal conditions. Eryngium yuccifolium will self-sow where happy. A wonderful architectural accent plant! For drying, cut stems before flowers are fully open.