Answer: Hellianthus tuberosus, Jerusalem Artichokes, also known as sun chokes, are grown from tubers. The plants grow 6'-7' feet tall, with bright yellow flower heads. It spreads readily and can become invasive unless the tubers are harvested every year and only a few are replanted. You can purchase the tubers from Nichols Garden Nursery, 1190 North Pacific Hwy., Albany, OR 97321-4580. Phone (541) 928-9280.
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