Watercress Heirloom Vegetable 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 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 flavour 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. Seeds/Package Untreated Non GMO