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A picture of a Jerusalem Artichoke

Jerusalem Artichoke

Helianthus tuberosus

Also known as

Sun Root, Earth-Apple, Sunchoke, Topinambur, Artichoke, Iroquois Potato, Jerusalem Sunflower

Full Sun
Easy care
Moderate watering
Frost Hardy

H6

RHS hardiness

-20°C

Minimum temperature

Expected size

Height
Spread

2.5m

Max

60cm

1.5m

Min

30cm

Flowering

  • spring
  • summer
  • autumn
  • winter

This plant has a mild fragrance

More images of Jerusalem Artichoke

A photo of Jerusalem Artichoke
A photo of Jerusalem Artichoke
A photo of Jerusalem Artichoke
A photo of Jerusalem Artichoke

Jerusalem Artichoke Overview

Potatoes aren’t the only terrific tuber out there. Jerusalem artichokes, related to the sunflower, are a root vegetable grown for its edible tubers. They have a crisp texture and when cooked, they become a soft, nutty alternative to potatoes.

Common problems with Jerusalem Artichoke

Sclerotinia (white mould), which can cause early wilt, stalk rot and degradation of the tubers, crops should be rotated to avoid rot.

Jerusalem Artichoke Companion Plants

Sweetcorn

How to harvest Jerusalem Artichoke

Tubers are harvested from late summer through to early winter. Set aside some of the tubers for re-planting in early to mid summer. Ready for harvest 120 to 150 days after planting.

How to propagate Jerusalem Artichoke

Tubers

Cut tuber into two or three sections with an “eye”. Cover the tubers with soil to a depth of 10 cm. Plant in rows 70 cm apart, 25 cm spacing. Any small piece left in the soil after harvest will shoot and grow into a new plant.

Seed

Sow seeds in the Spring at a depth of 7.5 - 13 cm. Keep moist.

Division

Seed or division in autumn or spring.

Special features of Jerusalem Artichoke

Attracts birds

Birds love the seed

Pot plant

Clever to keep these bound, because they can become invasive and a pot is a great option to contain them!

Hedge plant

Quick growing during summer it makes an effective screen that will disappear in winter.

Other uses of Jerusalem Artichoke

Culinary

culinary

The edible rhizomes are harvested in winter when the plant is dormant and the leaves all died back. Use them roasted, cooked or like potato in soups and stew.

Edibles to Plant Outside in February.

Provided the ground isn't frozen or waterlogged, these can be planted.

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Vegetables to Grow Through Winter

These crops will keep growing throughout the winter if provided with some protection from the worst of the winter weather.

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