Holly Fern
Cyrtomium falcatum
A tough, attractive fern with glossy, dark green fronds composed of stiff, holly-shaped leaflets.
The essentials at a glance
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Watering
Every 7 days
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Light
Medium light
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Humidity
40–60 %
-
Temperature
10–25 °C
How to care for your Holly Fern
Everything you need to keep your Holly Fern healthy: watering, light, humidity, feeding, repotting and pruning.
The Holly Fern is a robust and adaptable fern admired for its distinctive, leathery, dark green fronds. Each frond bears leaflets that resemble holly leaves, giving the plant its common name. It is more tolerant of dry air and cooler temperatures than many other ferns, making it a good choice for less-than-ideal indoor conditions. It prefers consistently moist, well-draining soil and low to medium indirect light, and can be grown outdoors in mild climates.
Watering your Holly Fern
Every 7 days
Water when the top inch of soil feels dry. Allow good drainage.
How to know it needs water
- Topsoil dry to the touch
- Fronds appearing slightly dull
How much light a Holly Fern needs
Medium light
Low to medium indirect light. Tolerates deeper shade than many ferns.
- Direct sun tolerated
- 0 to 1 h a day
- Orientations that suit it
- North, North-east, East, North-west, West
Humidity and misting
40–60 %
Medium (40-60%). More tolerant of average household humidity than other ferns. Mist occasionally if air is very dry, but generally not as demanding as other ferns.
Feeding and fertiliser
Every 60 days
Fertilize sparingly during spring and summer; once every 2 months is sufficient.
- Recommended feed
- Half-strength balanced liquid fertilizer. · 1-1-1
Repotting your Holly Fern
Every 24 months
Repot into a slightly larger pot with a well-draining, humus-rich potting mix.
- When
- Spring
- Potting mix
- All-purpose potting mix
- Mix in
- perlite, coco fibre
The tell-tale signs
- Roots circling the pot
- Growth becoming stunted
- Soil depletion
Pruning your Holly Fern
As needed. Remove old, yellowed, or damaged fronds at the base with clean, sharp shears.
Through the year
Watering is not set once and for all: it follows the light and the growth. Allow 8 days between waterings in the depth of winter, against 6 in the growing season.
- 8 J
- 8 F
- 7 M
- 6 A
- 6 M
- 6 J
- 6 J
- 6 A
- 7 S
- 7 O
- 8 N
- 8 D
Active growth · Days between waterings
Good to know
- Its dark green, stiff leaflets resemble holly leaves, giving it its common name.
- One of the more drought-tolerant ferns, also tolerating cooler temperatures.
Frequently asked questions about the Holly Fern
How do you care for a Holly Fern?
Water it every 7 days. Give it medium light. Ideal humidity: 40–60 %. Ideal temperature: 10–25 °C. Water when the top inch of soil feels dry. Allow good drainage.
How often should you water a Holly Fern?
Every 7 days Water when the top inch of soil feels dry. Allow good drainage. How to know it needs water : Topsoil dry to the touch ; Fronds appearing slightly dull.
How much light does a Holly Fern need?
Medium light Low to medium indirect light. Tolerates deeper shade than many ferns. 0 to 1 h a day
Is the Holly Fern toxic to cats and dogs?
No, the Holly Fern is not listed as toxic to cats and dogs. That is still no reason to let your pets chew on it.
Why are my Holly Fern leaves turning yellow?
Yellowing most often comes from too much water: the mix stays wet and the roots suffocate. Check that the pot drains, empty the saucer, and let the mix dry before watering again. Too little light or a cold draught cause the same symptom.
When should you repot a Holly Fern?
Repot every 24 months, ideally in spring. Repot into a slightly larger pot with a well-draining, humus-rich potting mix.
At a glance
- Family
- Dryopteridaceae
- Category
- Fern
- Placement
- Indoor and outdoor
- Mature height
- 60 cm
- Growth
- Moderate
- Temperature
- 10–25 °C
- Pot materials
- ceramic, plastic
- Growth
- Reaches maturity in 3 years
These figures are for an average plant. In the app they are recalculated for yours, based on your room, its orientation and the season.
And for your plant, in your home?
In the app this plant becomes yours: a watering schedule tuned to your home, health tracking from photos, and reminders at the right moment.









