Harvest the tuberous roots of Jerusalem artichokes for a low-cal treat. The edible flower buds of globe artichokes are a good source of immunity-building folate and vitamin C needed to fight infections.
For Jerusalem, cut the tubers into pieces so that each knob has part of the main tuber attached. 4-6 weeks before the last frost date, plant the knobs 3-5 inches deep and 18-24 inches apart. Tubers are ready for digging after the tops are killed by frost. Cut or leave in the ground and harves throughout the winter. Freezing won't hurt the tubers, but a heavy straw mulch will keep the ground from freezing and make digging easier.
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