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5 Bunches of Hornwort Ceratophyllum demersum

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Hornwort Ceratophyllum demersum - 5 bunches

This pond perennial remains submerged beneath the surface of your pond, colouring your pond with its forked green leaves. Tiny flowers bloom in the summer from the leaf axils, decorating the greenery with tiny white blooms.


  • Foliage Colour: green
  • Flower Colour: white and green
  • Max. spread: 10cm
  • Flowering Time: summer
  • Uses: beds and borders, containers
  • Exposure: sheltered or exposed
  • Habit: spreading
  • Hardiness: hardy
  • Rate of Growth: moderate

Please note: where your plant is supplied with a pot, your plant's 'Height on Arrival' includes the pot

Clip stem cuttings during propagation.

A perennial is a plant that lives for more than two years. Perennials are flowering plants which grow and bloom over the spring and summer and then die back every autumn and winter. They typically grow structures that allow them to adapt to living from one year to the next through a form of vegetative reproduction rather than seeding. Perennial plants often have deep, extensive root systems which can hold soil to prevent erosion, capture dissolved nitrogen before it can contaminate ground and surface water, and outcompete weeds. They grow very well in conditions that are poor in resources due to their earlier emergence in the spring, and the development of larger root systems which can access water and soil nutrients deeper in the soil.

Advice on hot and droopy plants

If your plants are looking a little wilted right now, don’t worry! Plants like to be filled with water to keep their structure, and when it’s hot that water evaporates.

Just give them an off-schedule watering and they’ll be right as rain in no time! Be careful not to flood them - plants don’t like extremes.

  • Light Requirements: full shade, partial shade, full sun
  • Moisture Requirements: pond/in water

Grow in water 30-90cm deep in full shade to full sun. The plant floats freely so baskets are not requires. Dies back in winter but stem buds overwinter in bottom mud and grow in spring.

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More Information
Common Name Hornwort
Features Oxygenating Pond Plants, UK Native
Flower Colour Green, White
Flowering Month May, June, July
Is Collection/Mix? No
Needs Ericaceous Compost? No
Colour Green, White / Cream
Eventual Spread Under 0.3m
Foliage Colour Green
Type Pond Plants
Latin Name Ceratophyllum
Shop By Category Pond Plants