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Vegetables

Rhubarb

Rheum × hybridum

Rhubarb
Photo: Dieter Weber (User:Uellue) · CC BY-SA 3.0 · Wikimedia Commons

A perennial with sour red stalks for pies and compotes; needs cold winters. The leaves are toxic.

Light
Partial shade
Height
0.6–1 m
Watering
Moderate: 2–3 times a week in summer
Soil
fertile, rich in organic matter
Edible?
Yes: the white stem
How to plant
Plant pieces with 2–3 eyes 3–5 cm cm deep, 1 m apart.
Care
Plant the crown in winter with plenty of manure. No harvest in year one; then pull stalks April–June, never more than a third.

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

  • Well-rotted manureFeb4–6 kg / m²

Pest prevention and doses

Mild Mediterranean

Not needed.

How easy to grow by climate

  • Warm coastNot recommended outdoorsToo warm a climate
  • Mild MediterraneanDifficultHot, dry summers
  • Southern interiorNot recommended outdoorsExtreme summer heat
  • Continental interiorEasy
  • Cold interior and uplandsEasy
  • AtlanticEasy
  • Canary Islands (subtropical)Not recommended outdoorsNo winter chill

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