Wonderful for late summer bloom, true hyssop is an easy-care, first-year flowering perennial (USDA zones 311) that brings bees, beneficial insects, and butterflies to the garden. This ancient herb has been used by many cultures for its medicinal and culinary value as well as its beauty. Sow for a short hedge along paths or mix with other perennials. Ideal in rock and herb gardens and is a nice cut flower.