(1) Off the land there were mushrooms, snails in the dry-stone walls, watercress in the ditches, rock pigeon and hare - my brother had a lurcher dog called Jess.(2) Jobs in one of Hampshire's most distinctive industries, watercress growing, are under threat from government proposals.(3) Most aquatic plants prefer calm water, with the exception of watercress , which seems to prefer moving water.(4) Edible plants for your pond include watercress , water chestnuts, and arrowhead or Wapato.(5) The watercress plants would grow from seeds sprayed from the air.