Sensitive Fern Plant Care
Onoclea sensibilis L.
Updated · Sources · How we source care data
Onoclea sensibilis, the sensitive fern, also known as the bead fern, is a coarse-textured, medium to large-sized deciduous perennial fern. The name comes from its sensitivity to frost, the fronds dying quickly when first touched by it.
Every 3–7 days
Shade to partial shade
50–75°F
60–80%
At a glance
How do you care for Sensitive Fern?
Plant Sensitive Fern in shade to partial shade (USDA zones 12a) and water a young shrub every 3–7 days until it is established. It tolerates temperatures of 50–75°F (10–24°C).
What Is the Sensitive Fern?
Sensitive Fern (Onoclea sensibilis) belongs to the Onocleaceae family within the Onoclea genus. Sensitive Fern is also known as Cinnamon Fern.
Sensitive Fern displays a spreading, rhizomatous growth habit, reaching up to 2 ft tall with a spread of approximately 3 ft. Sensitive Fern produces non-flowering.
Leaf size: approximately 18 inches.
How Often Should You Water a Sensitive Fern?
Water a young or newly planted Sensitive Fern every 3–7 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 3–7 days
Until established; then in dry spells
What Light Does the Sensitive Fern Need?
Sensitive Fern thrives in shade to partial shade. Avoid placing Sensitive Fern in direct, harsh sunlight for extended periods, as this can scorch the foliage.
Light Requirement
Shade to partial shade
What Temperature and Humidity Does the Sensitive Fern Prefer?
Onoclea sensibilis tolerates temperatures of 50–75°F. Sensitive Fern prefers humidity levels of 60–80%. A pebble tray or humidifier helps maintain adequate moisture around the plant.
Temperature
50–75°F
Humidity
60–80%
What Soil Mix Works Best for a Sensitive Fern?
Rich, moist soil with good drainage. Good drainage is essential for Sensitive Fern to prevent waterlogging, which leads to root rot and fungal issues.
Where Should You Plant a Sensitive Fern?
Choose a spot with shade to partial shade and rich, moist soil with good drainage. Avoid low spots where water collects after rain.
Sensitive Fern is suited to USDA Zone 12a.
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 Sensitive Fern?
Sensitive Fern can spread to about 3 ft (0.9 m) and reach about 2 ft (1 m) tall. Space plants about 3 ft (0.9 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 Sensitive Fern?
Prune Sensitive Fern 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 Sensitive Fern in Winter?
Sensitive Fern is frost-tender (hardy to USDA zone 12). 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 Sensitive Fern?
Sensitive Fern can be propagated through spores.
Is the Sensitive Fern Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Sensitive Fern, 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 Sensitive Fern?
Sensitive Fern is susceptible to slugs, snails. 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 Sensitive Fern Need?
Sensitive Fern grows outdoors in USDA Zone 12a. It survives winters down to planting zone 12a. In cooler regions, grow Sensitive Fern as a houseplant or bring it indoors before the first frost.
Hardiness Zone
Zone 12a
Keep exploring plants
Sensitive Fern 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 Onoclea genus (family Onocleaceae) — search all Onoclea species in the plant lookup.
Sensitive Fern copes with lower light than most plants — browse the full list of low-light plants.
Related Plant Care Guides
Closely related plants with similar care requirements:
Sources
- Scientific name & taxonomy: Onoclea sensibilis L., family Onocleaceae (first published in Sp. Pl. 2: 1062. 1753 [1 May 1753]) — World Flora Online record, IPNI name record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Sensitive Fern, 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 12a, 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.
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