Hyssop (Hyssopsus officinalis) is an Old World herb with a long history of medicinal and culinary use. Native to Southern Europe, the Middle East and Northern Africa, Hyssop is a perennial usually in the 18- to 24-inch range with small, glossy aromatic leaves and deep blue to violet flower spikes from mid-summer until frost. It prefers fertile, well drained soil and full sun, with a little shade in the hottest part of the afternoon. Hyssop's water needs are average until established, but then fairly drought tolerant. The plant is hardy in zones 4-9, and will be evergreen in a mild winter. For best results, prune in early spring to rejuvenate. It takes well to shearing. Hyssop has few pest or disease problems and is very attractive to pollinators, particularly bees.

While useful as an herb, hyssop should not be overlooked as an excellent, low-maintenance ornamental plant. It's very useful along the front of a border, in a cottage garden or tucked between boulders in a rock garden. It also does well in containers and can be used as a low hedge.

When shopping, be aware that several species of Agastache are also called hyssop, usually giant hyssop. Also attractive, these are much larger plants, often reaching 4 feet tall. So, know what you’re buying and don’t be surprised.

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Written by UC Master Gardener Susan Rosenthal