Water pepper

  • Product number: 368050
  • Origin: Subtropics
  • Latin: Polygonum hydropiper

A spicy leaf, delicious in salads and very popular in Japanese cuisine. Water pepper belongs to the knotweed family and originally grows in damp places in the subtropics. This annual plant self-seeds in our climate and germinates the following year after some raking through the soil. Water pepper likes moisture and light shade. Eat young shoots at the beginning of the flowering season, and germinated seeds in salads. The leaves can also be dried. Although the plant is very healthy, it should not be eaten raw in large quantities; use it as a flavouring! However, larger quantities can be eaten after stir-frying. Water pepper contains a lot of vitamin C, iron, calcium, phosphorus, magnesium and rutin. The taste is quite peppery.

Names:
Latin: Polygonum hydropiper
Dutch: Waterpeper
English: Water Pepper

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Sowing method: Water Pepper sometimes germinates slowly and irregularly. Keep the seeds moist (preferably pre-soak for 24 hours), sow in cocopeat with sand, first a few days at 20-25°C, then 1 week at 0-4°C (refrigerator), then slowly warm up again. Sowing in March-April directly outdoors often also produces the desired effect (due to night frosts).

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Sowing/planting time:

  • March
  • April

Harvesting time:

  • June
  • July
  • August
  • September

Soil type:

  • All soil types

Cultivation location:

  • Outdoors

Position:

  • Partial shade
  • Flower colour: Inconspicuous small flowers
  • Origin: Subtropics
  • Average growth height: 30 to 60 cm
  • Annual or perennial: Annual
  • Attractive to insects: N/A
  • Winter hardy: Not frost hardy
  • Ease of cultivation: Moderate
  • Latin: Polygonum hydropiper
  • Dutch: Water pepper
  • Also known as: Not applicable / Not known
  • English: Water Pepper
  • All year round

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