Jerusalem Artichoke (Sunchoke)
Helianthus tuberosus · Herbaceous Perennial (Note: Plant shown is a tall herb, not a woody tree)
Plant Family
Asteraceae
Tree Category
Edible Ornamental / Flower
Variety / Cultivar
Wild type
Hardiness Zones
USDA Zones 3-9; highly adaptable to various temperatures.
About This Tree
A tall, upright herbaceous perennial that can reach sizes comparable to small trees. It has a rough, hairy stem and produces sunflower-like yellow blooms in late summer. It is known for its edible underground tubers.
Leaf Characteristics
Opposite on lower stem, becoming alternate higher up. Leaves are ovate-lanceolate, rough-textured (sandpapery), with serrated margins and visible veins.
Bark Characteristics
Not a woody bark; the stem is green to reddish-purple, stout, and covered in stiff, bristly hairs.
Growing Information
Origin Region
Central North America, widely naturalized across the continent
Growing Season
Active growth in spring and summer; flowers in late summer to autumn (August-October); goes dormant in winter
Sunlight & Water Needs
Full sun to partial shade; prefers moist but well-drained soil; moderately drought tolerant once established.
Mature Size
Height: 6-10 feet; Spread: 3-5 feet; fast growth rate via rhizomes; herbaceous lifespan.
Special Characteristics
Produces edible tubers with a nutty flavor; contains inulin; very invasive in gardens due to rapid rhizomatic spreading; high pollinator value.
Wildlife & Ecology
Attracts bees, butterflies, and other pollinators; seeds provide food for birds; tubers are eaten by small mammals; provides dense cover.