Ceratophyllum demersum

Also called Hornwort

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 fish and other aquatic wildlife
Great oxygenator for controlling algae in ponds
Bloom Time: Summer to early fall
Flower Size: 3 mm (male), 1 mm (female)

ZONE:
3

COLOUR:
Non-flowering

HEIGHT:
30-60 cm

SPREAD:
2-4 m

Currently Unavailable

Growing and Maintenance Tips:

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.

Additional Notes about Coontail:

Native to Ontario and most of North America.

Called "coontail" because its tight whorls resemble a racoon's tail.

Characteristics & Attributes

SOIL MOISTURE:
Aquatic (submerged)

GROWTH RATE:
Medium

FLOWERING TIME:
Summer

FOLIAGE COLOR:
Green (dark)

LANDSCAPE USES:
Naturalizing