Beautiful aromatic perennial border plant that produces spikes of indigo flowers, traditionally used for coughs and colds. Hyssop has effective anti-viral properties in addition to being diuretic. Can be planted with rosemary and lavender for a colorful and fragrant effect. Its aroma stimulates alertness and mental clarity. Was used as a strewing herb, thrown on floors to mask odors. Add slightly bitter leaves to salads, soups and stews, or use as an expectorant tea. Especially attractive to pollinators. Easy to grow and drought tolerant. People with epilepsy and pregnant women avoid use.