Jerusalem artichoke (Helianthus tuberosus) - The diabetic tuber

Jerusalem artichoke – a nutrient-rich tuber vegetable with a nutty flavor and valuable ingredients.

The plants grow over 3 meters tall and delight in autumn with their blossoms as short-day plants. Thanks to their high inulin content, they are ideal for a conscious diet and particularly suitable for diabetics. The harvest takes place from early winter onwards, once the foliage has died back. Available in two varieties: white and red tubers.

Sold as planting stock. From 500 grams.

Available from November 2026

The Jerusalem artichoke (Helianthus tuberosus), also known as the sunchoke, earth apple, or sunroot, belongs to the daisy family and is closely related to the sunflower.

Almost all parts of the plant are usable, with the underground tubers being especially valued for culinary purposes.

Edible plant parts & usage

1. Tubers

• Flavor: Sweet, nutty, and subtly aromatic (reminiscent of a mixture of artichoke, chestnut, and parsnip).

• Usage: The tubers are extremely versatile. They can be used raw (shaved paper-thin) in salads, but are also excellent for cooking, baking, frying, or for creamy soups and purees. Since the skin is very thin, they usually only need to be thoroughly scrubbed before preparation.

2. Blossoms and above-ground parts

• Usage: The lovely yellow blossoms that appear in autumn are also edible.

• Preparation: The petals can be used as a decorative addition to salads or as a garnish. While the stems and leaves are not toxic, they are rarely used in the kitchen due to their rough texture, but can be dried to serve as a tea base.

⚠️ Important health note: Inulin

Unlike potatoes, Jerusalem artichoke tubers do not store their energy as starch, but in the form of inulin, a soluble fiber.

• Good for blood sugar: Since inulin hardly affects blood sugar levels, Jerusalem artichoke is particularly popular with diabetics (hence the nickname "diabetic potato").

• Mind your digestion: Inulin can cause flatulence in sensitive individuals or when consumed in unusually large quantities, as it is only fermented in the large intestine. It is recommended to start with small portions or to prepare the tubers with digestive herbs such as caraway or fennel.