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Nutrient Accumulators

These herbs accumulate nutrients in their biomass which may be shared with other plants through fungi in the soil or by chopping and dropping the biomass as a mulch.

  • Borage - silica, phosphorus.
  • Chamomile - calcium, potassium, phosphorus.
  • Comfrey - silica, nitrogen, magnesium, calcium, potassium, iron.
  • Fennel - sodium, sulphur, potassium.
  • Horsetail - silica, magnesium, calcium, iron, cobalt.
  • Nasturtiums - sodium, fluorine, sulphur, magnesium, calcium, potassium, phosphorus, iron.
  • Nettles - sodium, sulphur, nitrogen, calcium, potassium, iron, copper.
  • Primrose - magnesium.
  • Spurges - boron.
  • Vetches - nitrogen, potassium, phosphorus, copper, cobalt.
  • Yarrow - nitrogen, potassium, phosphorus, copper.

(Sulphur is now spelt sulfur by international convention. This website may use either spelling).

Adapted from The Permaculture Home Garden by Linda Woodrow


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