Adiantum raddianum

Delta Maidenhair Fern

Expert careTerrestrialNon-toxic15–45 cm

A fern with thin, wiry black stems supporting fans of small, delicate leaflets. The fronds have an airy, layered structure that looks intricate up close. It needs consistently high humidity and evenly moist soil. If the air dries out, the fronds brown quickly and may not recover.

Build a terrarium with this plant
Maidenhair Fern image

Photo by Photo by Forest & Kim Starr·CC BY 3.0 US

Care

Prefers very high humidity, indirect light, with 15–24 °C, and reaches 45 cm at maturity.

Light

Indirect light(preferred)

Humidity

Very high (80%+)(preferred)

Temperature

10°C25°C40°C
15°C – 24°C

Soil

Well draining(preferred)

Moisture

Moist(preferred)

Soil pH

6.5 – 8

Propagation

No description available.

Native range

Native to Northern South America and Brazil.

Appearance

Growth habit

ClumpingBushy

Leaf shape

Fan

Leaf texture

Fine

Frequently asked

Can Delta Maidenhair Fern grow in a closed terrarium?

Yes. Delta Maidenhair Fern prefers very high (above 80%) humidity, which is what a closed terrarium provides, and tolerates indirect-light-loving conditions.

Does Delta Maidenhair Fern need drainage?

Delta Maidenhair Fern prefers a moist substrate. Drainage is helpful but not critical; consistent moisture matters more.

What humidity does Delta Maidenhair Fern need?

Delta Maidenhair Fern does best in very high (above 80%) humidity.

Is Delta Maidenhair Fern pet-safe?

Delta Maidenhair Fern is considered non-toxic to common household pets.

How tall does Delta Maidenhair Fern grow?

Delta Maidenhair Fern typically reaches 15–45 cm at maturity.

How do you propagate Delta Maidenhair Fern?

Delta Maidenhair Fern can be propagated by division or spores.

References

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