Plant Passport
Boston Fern
Nephrolepis exaltata
LightBright
Water7-10d
PetCheck
PP NEPH ROLE PISE
Issued 2026 · Valid while cared for
Boston Fern
Krulvaren
Nephrolepis exaltata
“I am lush when the air is kind.”
pet safehumidity lovingbathroom planttropicalhanging plant
- Light
- Medium light
- Water
- Keep lightly moist
- Pet safety
- Pet safe
- This month
- Finish the strongest growth flush with one more light feed. Review support or pruning needs for the spreading shape before tired leaves hide pests Cue: Arching feathery fronds made of many narrow leaflets.
August care tip
Finish the strongest growth flush with one more light feed. Review support or pruning needs for the spreading shape before tired leaves hide pests Cue: Arching feathery fronds made of many narrow leaflets.
Quick Care Summary
- Light
- Medium light
- Water
- Keep lightly moist
- Placement
- Best in bright indirect light with steady humidity, such as a cool bathroom; outside in the Netherlands, harden it off and protect it from cold nights.
- Temperature
- 13–27°C
- Humidity
- high
Free printable Plant Passport card
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Plant Passport
Boston Fern
LightBright
Water7-10d
Botanical stake card
- Format
- 150 x 25mm
- Best for
- Slim plant stakes and gift pots
Use the card section above when you are ready to download or add a printed card.
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View holders →Detailed Care Guide
Watering Method
Water when the upper mix starts to dry, then drain fully so roots get air again.
Soil Mix
peat-free moisture-retentive mix that still drains freely
Repotting
Repot or refresh the top layer in spring when roots are active.
Pruning
Prune lightly during active growth and remove damaged leaves promptly.
Pot Preference
Use a pot with drainage; choose weight and size to match the plant's top growth.
Fertilizing
Feed lightly from March to September; skip fertilizer in winter or during cool rest.
Draft Sensitivity
Keep above 13 C and away from sharp cold draughts.
Sources consulted
- powo.science.kew.org
- www.aspca.org
- www.rhs.org.uk
Room Placement
Window Direction
East or west filtered light, or a bright spot set back from south glass.
Best Room
bright indirect light with steady humidity, such as a cool bathroom
Monthly Care Calendar
Aug (now)
Finish the strongest growth flush with one more light feed. Review support or pruning needs for the spreading shape before tired leaves hide pests Cue: Arching feathery fronds made of many narrow leaflets.
Sep
Start reducing fertilizer and stretch watering as nights cool. Move Boston Fern closer to bright filtered light before autumn light drops Cue: Arching feathery fronds made of many narrow leaflets.
Oct
Stop feeding and prepare for heating season. Set up humidity before edges crisp Cue: Arching feathery fronds made of many narrow leaflets.
Nov
Winter risk check: test soil before watering, inspect arching feathery fronds made of many narrow leaflets, and keep the pot draining freely while growth slows Cue: Arching feathery fronds made of many narrow leaflets.
Watering Schedule
- Summer
- Every 5 days
- Winter
- Every 10 days
Feel the upper third of the mix and water when it is just starting to dry.
Common Problems
Propagation
stem cuttings in soileasyspring
Propagate during active growth, keep the material warm and lightly moist, and wait for new growth before potting on.
Pests & Diseases
Spider mites
Early signs
Fine speckling, sticky residue or webbing on stressed new growth.
Treatment
Rinse or wipe leaves, isolate the plant and repeat treatment weekly until clear.
Mealybugs
Early signs
Cottony clusters, scale-like bumps or sour smell near the crown and leaf joints.
Treatment
Remove visible pests, improve airflow and check roots if the problem returns.
Buying Tips
Choose Boston Fern with clean growth, firm stems and no pests in the leaf joints.
Frequently Asked Questions
Fun Facts
The classic Boston fern look comes from long arching fronds, not flowers; ferns reproduce by spores.
Origin & Natural Habitat
Native through tropical and subtropical regions, often in humid forest margins, swamps and shaded banks.
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