Houseplantdex
Delta Maidenhair (Adiantum raddianum)

Delta Maidenhair

Adiantum raddianum C.Presl · Pteridaceae

Safe for cats and dogs Also known as Delta Maidenhair-fern, Delta maidenhair fern, Fine Maidenhair Fern

Pet safety

Safe for cats and dogs. Multiple authorities classify this plant as non-toxic to dogs and cats — see sources below.

Clinical signs: Large quantities may cause mild gastrointestinal upset due to fibrous texture.

Source: Multiple authorities .

Care

  • LightLow light – Medium / part shade
  • WaterKeep consistently moist
  • HumidityHigh
  • Temperature16°C – 21°C · 61°F – 70°F
  • DifficultyDifficult
  • SoilPeat-based
  • FertilizingLightly, growing season only

Size & habit

  • Mature height (indoor) 30–60 cm
  • Habit Rosette
  • Growth rateModerate

Common problems

  • Spider mites
  • Scale

Propagation

  • Division
  • Spore

Sources

  • Taxonomy GBIF #2651826
  • Toxicity Multiple authorities
  • Supporting sources
    • Veterinary consensus (true ferns) — Adiantum (true fern family Pteridaceae): Non-toxic to cats and dogs (True ferns are broadly non-toxic to pets in veterinary references.)
  • Care references Cross-checked — see methodology.