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Potato

Solanum tuberosum

Easy

Bury a seed potato, come back in three months to a treasure hunt.

Sun

Full sun

Water

2.5 cm / week

Soil

Loose, slightly acidic, pH 5.0–6.5

Spacing

30 cm apart, rows 75 cm

Days to harvest

70–120 days

Hardiness

Zones 3–10

Seasonal Calendar

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S
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H
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Sow Harvest

The method

  1. 1

    Chit the seed potatoes

    Set them in a bright, cool room for 4–6 weeks until short green shoots appear.

  2. 2

    Plant in trenches

    Bury 10–15 cm deep with shoots up. Space 30 cm apart.

  3. 3

    Earth up

    As shoots reach 20 cm, mound soil around the stems. Repeat every few weeks.

  4. 4

    Harvest

    Early varieties: dig once flowers open. Maincrop: wait until foliage yellows and dies back.

Common problems

Blight

Grow resistant varieties; cut off affected foliage immediately, wait 2 weeks before lifting.

Green tubers

Sunlight exposure — earth up thoroughly and never eat green flesh.

Good neighbors

BeanCornCabbageHorseradish

Field tips

  • “Never plant potatoes in the same bed two years running — rotate.”
  • “Store in the dark; light turns them green and bitter.”
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