Red Fuseau Sunchoke is a perennial sunflower cultivated for its knobby, ginger-like tubers that deliver a sweet, nutty flavor with a whisper of artichoke. Also called Jerusalem Artichokes, these American natives were first domesticated by Indigenous peoples and later introduced to Europe, where their remarkable inulin content earned them a reputation as a traditional diabetes remedy. In your garden, they'll reach 8 to 10 feet tall in just 90 days, thriving in full sun across zones 3 and up. The tubers themselves resemble ginger root and shine sliced thin in salads or roasted until caramelized.
Full Sun
Moderate
3-3
120in H x 24in W
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Moderate
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These tubers taste like a conversation between sweet potato, artichoke, and chestnut, with an earthiness that deepens when roasted. At 90 days to harvest, they're remarkably fast for a perennial crop. They'll grow tall and architectural in your garden, reaching 8 to 10 feet, while demanding little more than full sun and moderate water. The plants themselves are frost-hardy down to zone 3, so they'll return year after year.
Slice the tubers thin and add them raw to salads for a crisp, slightly sweet crunch. Roast them until golden and caramelized to deepen their nutty character. Purée them into soups for a velvety texture and delicate flavor. Some gardeners ferment or pickle them for winter storage. The tubers can also be used as a gluten-free flour substitute when dried and ground, though their primary appeal lies in enjoying them fresh or lightly cooked to highlight their natural sweetness and subtle artichoke undertones.
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Plant tubers directly outdoors in spring once soil is workable and has warmed to at least 50 degrees Fahrenheit. Set tubers 12 inches apart in rows 18 inches apart, positioning them about 4 inches deep. They'll establish quickly and begin climbing toward their full 8 to 10 foot height.
Direct plant tubers into prepared soil in spring after the last frost date. Choose a location in full sun with soil pH between 5.5 and 7.5. Push tubers about 4 inches deep, spacing them 12 inches apart with 18 inches between rows.
Harvest tubers after 90 days, typically in fall after the first frost has killed back the foliage. The frost actually sweetens the tubers by converting some starches to sugars. Once the tall green stems have blackened, dig carefully around the base of each plant to extract the knobbly tubers. They'll store better if left in the ground until you're ready to use them, protected by soil from freezing temperatures. Dig what you need and leave smaller tubers in place; they'll regenerate next season.
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“Red Fuseau Sunchokes carry the legacy of North American agriculture. The sunchoke species itself was cultivated by Native Americans long before European contact, valued both as food and medicine. When colonists discovered these tubers and brought them back to Europe in the 17th century, they sparked fascination across the continent. The 'Red Fuseau' represents the continuation of this lineage, a cultivar preserved and refined through generations of gardeners who recognized the plant's resilience and nutritional wealth, particularly its high inulin content, which made it a staple remedy in traditional medicine for managing blood sugar.”