Japanese Bird's Nest Fern
Asplenium antiquum
Also known as: Japanese Bird's Nest Fern, Antiquum Fern, Osaka Fern
Aspleniaceae
Last reviewed: June 2026 · Source: ASPCA Animal Poison Control
More upright than standard bird's nest fern with strap-like wavy fronds. Easier to grow in home humidity levels.
Toxicity
Source: ASPCA Animal Poison Control Center. Always consult a veterinarian if your pet ingests any plant.
Care Guide
Pot Size
Frequently Asked Questions
Is Japanese Bird's Nest Fern toxic to cats?↓
No, Japanese Bird's Nest Fern is not toxic to cats and is considered pet-safe according to the ASPCA. It is generally safe to keep in homes with cats.
Is Japanese Bird's Nest Fern toxic to dogs?↓
No, Japanese Bird's Nest Fern is not toxic to dogs. It is listed as non-toxic by the ASPCA and is safe to have around dogs.
How often should I water Japanese Bird's Nest Fern?↓
Water Japanese Bird's Nest Fern every 5–7 days. Water when the top inch of soil feels dry to the touch.
How much light does Japanese Bird's Nest Fern need?↓
Japanese Bird's Nest Fern thrives in medium indirect light — bright enough to read by, but no direct sun rays. Providing the right light level is important for healthy growth.
What size pot does Japanese Bird's Nest Fern need?↓
Use a pot between 6″ and 10″ in diameter. When repotting, choose a pot only 1–2″ larger than the current one — too much space retains excess moisture and can lead to root rot.