The eryngos genus prefers full sun and well-draining soil. To plant, dig a wide hole, around twice the root-ball's diameter. Insert the plant in the hole so that it's level with the soil surface. Backfill the hole, gently pressing the soil in place. Water it well initially, then moderately, ensuring not to overwater. While eryngos plants are generally adaptable, specific species may have unique needs. Thus, get familiar with your particular variety to cater to its requirements effectively.