Despite the misleading name, this hardy North American tuber has no connection to Jerusalem.
In short: Often called sunchokes, these knobbly tubers are actually a type of sunflower. They are incredibly easy to grow, thrive in poor soil, and offer a sweet, artichoke-like flavor. Once established, they can persist in your garden for years, providing a reliable, cost-effective winter harvest that defies the cold.
The Jerusalem artichoke (Helianthus tuberosus) is a native North American perennial that belongs to the Asteraceae family, sharing a lineage with the common sunflower. Its confusing name is likely a linguistic evolution of the Italian word girasole, meaning sunflower, which English speakers corrupted over time. Despite the name, it is not an artichoke, though the French explorer Samuel de Champlain noted its flavor resembled one when he first encountered it in Massachusetts in the early 17th century. The term sunchoke was a 1960s marketing invention designed to revive interest in the vegetable.
Cultivation of the plant dates back to Indigenous peoples of the Americas, who grew it long before European arrival. The tubers are remarkably hardy and proliferate easily in temperate climates. Unlike potatoes, which store poorly indoors, Jerusalem artichokes are best left in the ground throughout winter, where they remain protected from freezing. They are vigorous growers, reaching heights of up to 3 meters, and can be grown from tubers rather than seeds. Because they are so resilient, they can become a permanent fixture in a garden, sprouting again each spring from any tubers left behind during the previous harvest.
Nutritionally, the tuber is unique for its high content of inulin, a carbohydrate polymer of fructose. Because inulin is not assimilated in the human intestine, the vegetable has historically been cited as a folk remedy for diabetes, as it avoids the glycemic spikes associated with starchier crops like potatoes. As tubers age, they convert this inulin into fructose, which is about 1.5 times sweeter than sucrose, giving the vegetable its characteristic underlying sweetness. While it fell into relative obscurity in North America for a time, its ease of growth and culinary versatility—whether raw, cooked, or pickled—have kept it a staple in European gardens for centuries.
Opens the Intellect+ feed with this card first. Swipe up for the next one.
Sources
- Summary by Intellect · source: How to grow Jerusalem artichokes | RHS Guide
- Also: Jerusalem artichoke
To cite this card, link to https://intellectplus.co.uk/app/food-jerusalem-artichoke.
How we source, check and correct cards: Editorial standards.
General information, not professional advice. Spotted an error? Flag the card or see corrections and complaints.
Intellect Plus is a visual educational discovery platform for exploring fascinating facts and ideas. Brain Food, Not Brain Rot. What is Intellect Plus?
Related
More in Cooking, food and drink · More in Food & Drink · Latest · A–Z · All topics
