Hornwort Plant Care
Anthoceros laevis L.
Updated · Sources · How we source care data
Phaeoceros laevis, the smooth hornwort, is a species of hornwort of the genus Phaeoceros. It is commonly found in areas where moisture is plentiful, such as moist soils in fields, the banks of streams and rivers or inundated beneath the surface of the rivers.
Every 3–5 days
Filtered sunlight
60–75°F
60–80%
At a glance
How do you care for Hornwort?
Plant Hornwort in filtered sunlight (USDA zones 13a) and water a young shrub every 3–5 days until it is established. It tolerates temperatures of 60–75°F (16–24°C).
What Is the Hornwort?
Hornwort (Anthoceros laevis) belongs to the Anthocerotaceae family within the Anthoceros genus. Hornwort is native to areas.
Hornwort displays a low rosette, spreading mat growth habit, reaching up to 0.5 ft tall with a spread of approximately 1 ft. Hornwort produces non-flowering.
Leaf size: approximately 1 inches.
How Often Should You Water a Hornwort?
Water a young or newly planted Hornwort every 3–5 days, soaking the whole root zone, until it is established — usually one to two growing seasons. Established shrubs mainly need water during long dry spells. In a container, water whenever the top few centimetres of soil are dry.
Watering Frequency
Every 3–5 days
Until established; then in dry spells
What Light Does the Hornwort Need?
Hornwort thrives in filtered sunlight. Avoid placing Hornwort in direct, harsh sunlight for extended periods, as this can scorch the foliage.
Light Requirement
Filtered sunlight
What Temperature and Humidity Does the Hornwort Prefer?
Anthoceros laevis tolerates temperatures of 60–75°F. Hornwort prefers humidity levels of 60–80%. A pebble tray or humidifier helps maintain adequate moisture around the plant.
Temperature
60–75°F
Humidity
60–80%
What Soil Mix Works Best for a Hornwort?
Well-draining loamy soil with high organic content. Good drainage is essential for Hornwort to prevent waterlogging, which leads to root rot and fungal issues.
Where Should You Plant a Hornwort?
Choose a spot with filtered sunlight and well-draining loamy soil with high organic content. Avoid low spots where water collects after rain.
Hornwort is suited to USDA Zone 13a.
Plant container-grown or balled-and-burlapped shrubs in spring or early autumn, setting the root flare at soil level, and water well after planting.
How Far Apart Should You Plant a Hornwort?
Hornwort can spread to about 1 ft (0.3 m) and reach about 1 ft (0 m) tall. Space plants about 1 ft (0.3 m) apart so mature crowns don't crowd each other, and plant at least half that distance from buildings, fences and paths.
Planning a row or hedge? Try the plant spacing calculator.
How Do You Prune a Hornwort?
Prune Hornwort while it is dormant in late winter: first remove dead, damaged and crossing branches, then thin lightly for shape.
If it flowers in spring, prune right after flowering instead so you don't remove next year's buds. Never take off more than about a quarter of the shrub in one year.
How Do You Care for a Hornwort in Winter?
Hornwort is frost-tender (hardy to USDA zone 13). In colder areas grow it in a container and move it to a bright, frost-free place before the first frost.
How Do You Propagate a Hornwort?
Hornwort can be propagated through spores.
Is the Hornwort Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Hornwort, so we can't confirm whether it is safe for cats and dogs. Keep pets from chewing it as a precaution.
This is a general caution, not veterinary or medical advice. If your pet ate a plant, contact your vet or animal poison control.
See all plants toxic to cats and plants toxic to dogs.
What Pests and Diseases Affect the Hornwort?
Hornwort is susceptible to not commonly affected by pests. Inspect the foliage regularly, especially along leaf undersides and stems. Treat infestations promptly with insecticidal soap or neem oil to prevent spread.
Yellow leaves, brown tips or drooping? See common plant problems and how to fix them.
What USDA Hardiness Zone Does the Hornwort Need?
Hornwort grows outdoors in USDA Zone 13a. It survives winters down to planting zone 13a. Hornwort is native to areas. In cooler regions, grow Hornwort as a houseplant or bring it indoors before the first frost.
Hardiness Zone
Zone 13a
Keep exploring plants
Hornwort is one of many species covered in the complete plant care and identification guide, which groups plants by genus, attribute, and popularity.
It belongs to the Anthoceros genus — compare its care with other Anthoceros species on PlantoScan.
Anthoceros is part of the Anthocerotaceae plant family — browse all Anthocerotaceae genera and species.
Hornwort produces blooms — browse other flowering plants.
Related Plant Care Guides
Closely related plants with similar care requirements:
Sources
- Scientific name & taxonomy: Anthoceros laevis L., family Anthocerotaceae (first published in Sp. Pl. 1139 1753) — World Flora Online record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Hornwort, so we can't confirm whether it is safe for cats and dogs. Checked against the ASPCA plant list; any other toxicity note on this page comes from PlantoScan's plant database.
- Hardiness zone: USDA Zone 13a, calculated from the plant's minimum temperature.
- Care values(watering, light, temperature, humidity, soil, fertilizing): PlantoScan's plant database, filtered by automatic plausibility checks — values that fail them are hidden. How we source and check plant data.
Spotted a mistake? Email info@upvision.media with the page link — we check and correct reported errors.
