Hornwort (Ceratophyllum demersum)

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Hornwort (Ceratophyllum demersum)


Size: Stems can grow up to 24 “ long
Hardiness zone: 4-11
Fertilization: Absorbed from your water!
Habit: Submerged, non-rooting oxygenating plant with leaves packed tight in whorls that form plumes at the end.
Cultivation: Submerged, non-rooting plant placed 6-10” below the water’s surface. It needs to get some sunlight to work properly, as they help to prevent “pea-soup” green water.


  • Oxygenating Pond Plant
  • Submerged Pond Plant
  • Helps prevent 'pea-soup' green water
  • Helps prevent algae
  • Prefers full sun-partial shade
  • Winter hardy


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