Oxygenating Hornwort Plant | Ceratophyllum demersum
Keeps your pond nice and healthy
Grown by Caroline
Enfield
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In stock
Order before 11pm for delivery within 3-5 working days
Order before 11pm for delivery within 3-5 working days
Plant diary
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Oxygenating Hornwort Plant
Ceratophyllum demersum
- A native oxygenating plant with dark green whorled leaves on stems up to 3m long
- The foliage resembles little horns, hence the common name Hornwort. The plant's Latin name comes from the Greek 'ceratos' meaning horn
- This submerged aquatic perennial can grow to great depths, making it ideal for large ponds and lakes
- Free floating, but weighting can help secure the plant in the desired location
- Helps to keep your pond healthy
What to expect
Supplied as
Height on arrival
Eventual height
Eventual spread
Habit
Hardiness
Spacing
Will this grow in my garden?
Can I grow this in a pot?
Yes, the Oxygenating Hornwort Plant can be grown in a submerged aquatic basket or pot placed within a larger water-filled container.
How big does it get?
Oxygenating Hornwort Plant can reach lengths of 1-2 metres, floating submerged in the water.
How much sunlight does this need?
The Oxygenating Hornwort Plant thrives in full sun to partial shade.
What kind of soil does this plant prefer?
Oxygenating Hornwort Plant thrives in heavy loam or clay-based aquatic soil, placed at the bottom of a pond.
How much watering does this plant need?
The Oxygenating Hornwort Plant is an aquatic plant that needs to be fully submerged in water to thrive.
Will this plant need pruning?
The Oxygenating Hornwort Plant may need thinning out by about a third in late summer if it becomes too dense.
How hardy is this plant?
Ceratophyllum demersum is fully hardy (H6), surviving temperatures down to -20°C across the UK.
The wider garden
Enfield
Meet Caroline
A deep dive into sustainable gardening
Nestled amongst wildlife meadows and resident ducks, Caroline’s award winning pond plant nursery in Enfield has been making a splash since 1965, when they invented the (recycled, obvs) aquatic basket. Sixty years and multiple RHS gold medals later, they’re still surprising us with new varieties every year!
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