Helianthus tuberosus

Helianthus tuberosus

Jerusalem artichoke

A table displaying which months are best to sow, plant and harvest.
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Flowers
Flowers

Plant does not flower in January

Plant does not flower in February

Plant does not flower in March

Plant does not flower in April

Plant does not flower in May

Plant does not flower in June

Plant does flower in July

Plant does flower in August

Plant does not flower in September

Plant does not flower in October

Plant does not flower in November

Plant does not flower in December

  • Botanical name: Helianthus tuberosus
  • Common name: Jerusalem artichoke
  • Family: Asteraceae
  • Plant Type: Vegetable

The Jerusalem artichoke, Helianthus tuberosus, is a perennial sunflower native to North America, grown for its knobbly, white- or red-fleshed tubers, which can be eaten raw or cooked. Better suited to cooler regions, it’s well suited to the British climate. Tolerant of a wide range of soils, Helianthus tuberosus is a popular choice for difficult areas of the garden or allotment, and if planted en masse, it makes an excellent windbreak. In late summer, pretty yellow sunflower-like flowers are produced.

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Grow Helianthus tuberosus in moist but well-drained soil in full sun to partial shade. Harvest the tubers in autumn, leaving some in the ground to grow the following year.

How to grow Helianthus tuberosus

  • Plant size

    3m height

    50cm spread

  • Aspect

    East facing, south facing, west facing

  • Sun exposure: Full sun, dappled shade, partial shade
  • Soil type: Well drained / light / sandy / clay / heavy / moist / chalky / alkaline / acidic

Plant calendar

A table displaying which months are best to sow, plant and harvest.
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Plant
Plant

Do not Plant in January

Do not Plant in February

Do Plant in March

Do Plant in April

Do not Plant in May

Do not Plant in June

Do not Plant in July

Do not Plant in August

Do Plant in September

Do Plant in October

Do not Plant in November

Do not Plant in December

Flowers
Flowers

Plant does not flower in January

Plant does not flower in February

Plant does not flower in March

Plant does not flower in April

Plant does not flower in May

Plant does not flower in June

Plant does flower in July

Plant does flower in August

Plant does not flower in September

Plant does not flower in October

Plant does not flower in November

Plant does not flower in December

Divide
Divide

Do not Divide in January

Do not Divide in February

Do not Divide in March

Do not Divide in April

Do not Divide in May

Do not Divide in June

Do not Divide in July

Do not Divide in August

Do Divide in September

Do Divide in October

Do not Divide in November

Do not Divide in December

Harvest
Harvest

Do not Harvest in January

Do not Harvest in February

Do not Harvest in March

Do not Harvest in April

Do not Harvest in May

Do not Harvest in June

Do not Harvest in July

Do not Harvest in August

Do Harvest in September

Do Harvest in October

Do not Harvest in November

Do not Harvest in December

Helianthus tuberosus and wildlife

Helianthus tuberosus is known for attracting bees. It has nectar/pollen rich flowers.

Attractive to Bees

Does not attract Beneficial insects

Does not attract Birds

Does not attract Butterflies​/​Moths

Does not attract Other pollinators

Is Helianthus tuberosus poisonous?

Helianthus tuberosus has no toxic effects reported.

No reported toxicity to:

No reported toxicity to Birds

No reported toxicity to Cats

No reported toxicity to Dogs

No reported toxicity to Horses

No reported toxicity to Livestock

No reported toxicity to People