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Vegetables

Jerusalem artichoke

Helianthus tuberosus

Jerusalem artichoke
Photo: Luigi Chiesa · CC BY-SA 3.0 · Wikimedia Commons

A perennial sunflower with sweet tubers; very easy and productive with almost no care.

Light
Full sun (6 h or more)
Height
2–3 m
Watering
Low: every 7–15 days, drought-tolerant
Soil
undemanding
Edible?
Yes: the tuber. Berries and leaves are toxic
How to plant
Plant pieces with 2–3 eyes 10 cm cm deep, 50 cm apart.
Care
It spreads: any bit of tuber resprouts, so give it its own corner. Dig as needed through winter.

Calendar by climate

Warm coast
Mild Mediterranean
Southern interior
Continental interior
Cold interior and uplands
Atlantic
Canary Islands (subtropical)
SowPlantHarvestPruneFeedTreat

Dates are for growing outdoors, based on the local climate. In a greenhouse or tunnel everything comes earlier.

Feeding and doses

Mild Mediterranean

Not needed.

Pest prevention and doses

Mild Mediterranean

Not needed.

How easy to grow by climate

  • Warm coastNeeds regular careToo warm a climate
  • Mild MediterraneanEasy
  • Southern interiorNeeds regular careExtreme summer heat
  • Continental interiorEasy
  • Cold interior and uplandsEasy
  • AtlanticEasy
  • Canary Islands (subtropical)DifficultNo winter chill

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