Hyssop - Key Growing Information
SOWING: Direct seed (recommended): In spring, direct seed about 1/4" deep, one seed per inch in rows 18" apart. Plants should eventually be given 6-12" spacing.
Transplant: Sow several seeds 1/4" deep in flats in early spring. Thin or transplant to one seedling per cell when they are big enough to handle. When the plants are several inches high they can be transplanted outside 6-12" apart.
LIGHT PREFERENCE: Sun/Part Shade. Full sun is best. Hyssop will grow under part shade, but it will get quite leggy.
SOIL REQUIREMENTS: A light rocky soil is preferable to one that is rich and moist.
PLANT HEIGHT: 16-24".
PLANT SPACING: 6-12".
HARDINESS ZONES: Zones 3-9. If managed as an ornamental and trimmed to a shrub habit, Hyssop does better to Zone 6.
HARVEST: Flowering tops or whole plant in flower are harvested just as blooming begins, usually in midsummer. Tie in bunches and hang under shade to dry.
SCIENTIFIC NAME: Hyssopus officinalis