This popular Chinese specialty herb is a vigorous perennial. It is grown for its young flower buds, long stems and slender flat deep-green blades that grow up to 14". All of these parts are edible including mature flowers and have a delicate garlic-onion flavor. This variety is suitable for harvest from mid spring to early fall when grown in a greenhouse, and from late spring to late fall when grown in the field. Sufficient vegetative growth (1-2 years) plus low temperatures in winter and long summer days are needed for flowering. Generally, Chinese leek will not flower in the first growing season.