Ferry-Morse 1800 Artichoke Seeds, Emerald (400 Milligram Packet) This Ferry-Morse seed packet contains emerald artichoke which will produce a thornless, glossy, buttery flavored artichokes Guaranteed to grow 180-360 days to harvest Plant 1/2-inch deep, 3-foot row spacing, and 3-foot plant spacing; cool weather crop Includes one, 400-milligram packet