True Watercress Seeds
While traditionally grown along stream banks or in other moist areas as an aquatic or semi-aquatic plant, watercress can also be successfully grown in containers set in a saucer of water (change the water regularly). Watercress has a creeping growth habit and develops broader leaves than extra curled cress. The dark green leaves and stems have a crisp, pungent flavor when young. Well suited to hydroponic gardening. Watercress becomes bitter when it starts to flower. Reliably hardy outdoors to Zone 6, possibly to Zone 5 as well.