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Ceratophyllum demersum Coontail
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Coontail

Also Known As:

Hornwort

Botanical Name:

Ceratophyllum demersum
  • Submerged aquatic perennial producing slender, often rootless stems
  • Forked brittle dark green leaves are often borne more densely near the growing points
  • Tiny cupped white male flowers
  • Green female flowers
  • Evergreen perennial that sinks through the winter to provide cover for aquatic wildlife
  • Bloom Time: Summer to early fall
  • Flower Size: 3 mm (male), 1 mm (female)
Globe_Asia

Hardiness Zone

3

Invert_Colors

Flower Colour

  • Non-flowering
height

Height

30 cm-60 cm

Width

Spread

2 m-4 m

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Size Definitions

*All sizes are container only - we do not carry seeds. Please refer to size guide link above.

*All plugs are sold individually. Contact us for full tray pricing. Please click here for tray sizing guide.

Quantity

In Stock

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Coontail

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$7.95

Plant Characteristics

Info

Definitions

Sunny

Exposure

  • Full Sun
  • Partial Sun/Shade
Water_Drop

Soil Moisture

  • Aquatic (submerged)
Trending_Up

Growth Rate

  • Medium
Palette

Foliage Colour

  • Green (dark)
Potted_Plant

Attributes

  • Evergreen
  • Native to Ontario
Local_Florist

Flowering Time

  • Summer
Outdoor_Garden

Garden Uses

  • Bog or water garden
  • Naturalizing

Additional Details

Psychiatry

Growing Tips & Maintenance

  • Plant in full sun and relatively clear water with adequate levels of nutrients.  More tolerant of shade than the species. Will adapt to sites with slow-moving or stagnant water where there is some protection from wind and waves. It can be aggressive. 
Note

Additional Notes

  • Native to Ontario and most of North AmericaCalled "coontail" because its tight whorls resemble a racoon's tail. An active photosynthesizer, it releases oxygen into the water, while absorbing excess nutrients such as nitrogen and phosphorous, limiting algae growth. It also exhibits allelopathic properties (releasing natural substances that inhibit the growth of blue-green algae.) It can also absorb trace minerals like cadmium and lead. Ducks enjoy the seeds, but we hope they do not contain too much poison.
Ceratophyllum demersum Coontail
Coontail

Size: Bareroot

Ceratophyllum demersum Coontail

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