Also known as:
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Jerusalem artichoke (Helianthus tuberosus) is a species of plant in the genus Helianthus. This perennial is grown in the vegetable garden for its root tubers: Jerusalem artichokes. Blooms with yellow flowers in warm summers; grows into sturdy plants of over two meters (depending on the species).
Strong crop, little susceptible to diseases and pests.
Fungi & diseases
Gray brown colored rotten spots on the roots: White mold (sclerotinia).
Wet, rotten spots at the bottom of the stem: Root rot (Fusarium solani).
Jerusalem artichoke might be a weed problem. It spreads by rhizomes, and is also self-seeding. Once in the garden it proves difficult to remove. Any tiny piece of the root left in the soil produces new plants.