Groundnut/Hopniss (Apios americana) - Great Flowers - Edible Tubers

The Groundnut is a fascinating tuber from North America with versatile qualities. A fast-growing climber that enriches both garden and kitchen. Completely winter-hardy and easy to care for!

Scope of delivery: Plant in a 9cm pot. Currently still dormant for winter.

Growth & Appearance

• Lifespan: Perennial, frost-hardy herbaceous climbing plant.

• Growth height: As a strong-growing climbing plant, it easily climbs 2 to 3 meters (sometimes even higher) on trellises or fences.

• Habit: This legume impresses with attractive, pinnate foliage and dense growth. In autumn, the aerial parts of the plant completely die back.

• Bloom & Fruit: From July to September, beautiful, dense flower clusters appear in velvety purple to reddish-brown tones. A great bonus: the flowers emit a wonderful, intense scent (often described as a mix of violets and chocolate)! Edible tubers develop underground, strung together like pearls on a necklace.

Origin As the name suggests, Apios americana originates from eastern North America. There, it prefers to grow in moist forests, on riverbanks, and in thickets.

Ingredients The tubers are true powerhouses! They have three times the protein content of conventional potatoes. They are also very rich in calcium, iron, and valuable carbohydrates.

Use

• In the kitchen: A fantastic, nutritious root vegetable! Important: The tubers (as is typical for legumes) should not be eaten raw. Cooked, fried, or deep-fried, however, they are a delicacy. Their taste is sweet and nutty – like a fine mixture of sweet chestnut (Maroni), sweet potato, and regular potato.

• In the garden: A rapidly growing, flowering privacy screen for fences, pergolas, or obelisks in summer.

• Soil improver: As a legume, it lives in symbiosis with root nodule bacteria and naturally enriches the soil with nitrogen.

Historical context The "Hopniss" (as it was called by indigenous peoples) was one of the most important staple foods for Native Americans for centuries. Later, this very plant saved the lives of the first European settlers (the Pilgrims) in New England when they had to endure their first harsh winters and learned from the Native Americans to gather the nutritious tubers.

Curious facts Harvesting this plant is a real experience! When you dig, you won't find loose potatoes, but rather pull a whole "root-sausage" out of the ground. The tubers grow in a row on long strings through the soil – just like pearls on a necklace.

Location, Care & Harvest

• Location: Full sun to partial shade. The base of the plant can be a little shaded and cool (similar to clematis).

• Soil: Humus-rich, nutritious, and preferably a little moist. The looser the soil, the easier it will be to harvest the long tuber chains later!

• Climbing aid: It does not climb smooth walls on its own but needs strings, trellises, wire fences, or stakes to wind around.

• Harvest time: Ready for harvest in early winter (from approx. November), after the plant has withered. You can always harvest only as much as you need and leave the rest in the ground as "seed" for the next year.