Maidenhair fern
Adiantum raddianum
Also called Delta maidenhair
Houseplant · Ferns & palmsIt will not forgive one dry day. A bathroom sill is where these actually survive.
Care at a glance
- Ease
- Very hard
- Water
- Every 3 daysKeep it moist — water at the first hint of dryness — don't wait for a dry pot.
- Light
- Medium indirect, never direct
- Feed
- Every 30 days
- Humidity
- Very high
- Hardiness
- Indoors, or out in high summer RHS H1B, to 10°C
- Size
- 0.4 m tall · 0.4 m across
- Lifecycle
- Perennial
- Origin
- Tropical Americas
Is it safe for pets and people?
PetsNothing recorded against it
No animal-poison authority lists this plant either way.
PeopleNot checked yet
Nobody has checked this one against a source for us yet, so treat it as unknown rather than safe.
Checked against ASPCA and RHS on 2026-07-31. Where a source says nothing, we say nothing.
A guide, not veterinary or medical advice. If a pet or a person has eaten a plant and you are worried, call your vet or doctor now — don’t wait for signs to appear. Spotted a mistake? Tell us.
First signs of trouble
- A whole frond goes papery from the tip back inside a day while its black wiry stalk is still springy — cut it to the base; it will not green again.Crisping from one dry-out · disorder