Edibles > Vegetables

hornwort

Ceratophyllum demersum

Low Maintenance

Genus: Ceratophyllum
Family: Ceratophyllaceae
Common Names: cedar moss, coon tail, fish blankets, horn weed, morass weed, rigid hornwort

About this plant

C. demersum is a submerged perennial with forked, dark green leaves, with tiny flowers in summer

Growing Information

Height

Up To 10 Cm

Spread

1-1.5 Metres

Hardiness

H4

Foliage

Deciduous

Growing Conditions

Sunlight

Full ShadeFull SunPartial Shade

Soil

ChalkLoam

pH

AcidAlkaline

Not Currently Available

This plant is not currently stocked at any garden centres on our platform.

Neutral

Moisture

Moist But Well Drained

Aspect

East FacingWest FacingNorth FacingSouth Facing

Exposure

ShelteredExposed

Care Guide

Cultivation

Grow in water 30-90cm deep in full sun to shade. Plants float freely. Plants die back in winter but modified stem buds, turions, overwinter in bottom mud and re-grow in spring

Pruning

No pruning required

Propagation

Propagate by stem cuttings and allow to float in water

Pests

Generally pest free

Diseases

Generally disease free

Garden Uses

Season of Interest

SpringSummerAutumn

Size & Characteristics

Height

Up To 10 Cm

Spread

1-1.5 Metres

Habit

Mat Forming

Time to Full Height

Ten To Twenty Years