Description Hyssop's blue spires of bloom late in the summer are a great bee attractant. This herb is bitter very aromatic, almost spicy. Hyssop is a semi-evergreen perennial with a woody, bushy growth that grows to about 32 inches in height. It has either blue, white or pink blooms normally in July to September, and narrow lance-shaped leaves. Cultivation Hyssop likes full sunlight and a light, well-draining soil.
Seed is sown and germinated easily in the greenhouse or garden in early spring.
Thin seedlings to 2 inches apart, and when plants are six inches tall, thin again to two feet apart. Hyssop can grow to a height of 2 feet. The herb can also be grown in a container, as long as it is in good sunlight. Hyssop can make an excellent landscape plant as long as stems are trimmed to maintain a bushy appearance, or clipped to form a low hedge. New plants can also be started from branch cuttings.