Maidenhair fern care guide
Adiantum raddianum
Also known as: Delta maidenhair fern, Adiantum 'Fritz Luthi'
Pets and children
We haven't been able to confirm how this plant affects pets or small children. If any is eaten, consult a veterinarian or a doctor.
How often to water Maidenhair fern
- Spring–Summer (Mar–Sep)
- Every 2 days
- Keep the soil moist: water well as soon as the surface begins to dry, as a guide, since fronds that dry out once shrivel and do not recover.
- Autumn (Oct–Nov)
- Every 3 days
- Drying slows, so generally water once the surface is dry and keep misting.
- Winter (Dec–Feb)
- Every 5 days
- Do not let it dry out in winter: water a day or two after the surface dries, as a guide, sooner in a heated room.
Light and placement for Maidenhair fern
Bright shade out of direct sun is about right, ideally a humid, bright spot such as a north window or a bathroom window; sun and dry drafts shrivel the fronds.
Overwintering Maidenhair fern
Overwintering guide: 5°C (41°F) or above
It takes down to about 5°C but dislikes dry heated rooms; overwinter it in a bright spot out of drafts with regular misting, and if the fronds die back, cut them to the base, keep it moist, and wait for spring.
Fertilizing and repotting Maidenhair fern
Fertilizer
Diluted liquid fertilizer about once or twice a month from May to September; strong feeds damage the fine roots, so keep it weak, and none in winter.
When to repot
Spring–Summer (Mar–Sep)
Common problems with Maidenhair fern
- One drying out shrivels the fronds and turns them brown.
- Dry heater air crisps the delicate fronds.
- Direct sun bleaches and scorches the fronds.
Tips for growing Maidenhair fern
- Even after dying back, cut the fronds to the base and keep it moist; new growth often follows if the roots are alive.
- Bottom watering or a double pot slows drying.
- A large clump can be divided in spring.
These are AI-generated general guidelines. They vary with the variety, the placement and the pot size. For effects on pets or children, consult a veterinarian or a doctor.
Keep your plant log going
Greenery is a free app that keeps your plant care going, with watering reminders and photo records. Available on iOS and Android.
