ADULTPLANTS

Cast iron plant

Aspidistra elatior

Family Asparagaceae Native to Japan and Taiwan Habitat temperate forest floor

Cast iron plant wants medium light and water every 10 to 14 days, once top 2 inches dry. Non-toxic to cats and dogs.

Cast iron plant (Aspidistra elatior)
Aspidistra elatior. Photograph by frau-doktor, via Wikimedia Commons, Public domain.
Light
Medium
LowMediumBright indirectDirect
Named for surviving Victorian parlors lit by gas lamps. Direct sun bleaches the leaves.
Water
Every 10–14 days
Baseline for a 6-inch pot indoors. Check first: water when top 2 inches dry, not on a schedule.
Humidity
30% and up
Fine in normal household air. Prefers 50%.
Temperature
50–80°F
Keep away from winter window glass and heating vents.
Difficulty
Easy
Scores 1 of 5: Tolerates deep shade, cold, and neglect, and is non-toxic. The trade-off is that it grows very slowly.
Habit
Clumping
Grows to 18–30 inches. No support needed.
Non-toxic to cats and dogs

Eating a large amount of any plant can still cause mild stomach upset.

Listed as non-toxic by the ASPCA.

DISPLAY — in-content responsive

Light

Medium light. Named for surviving Victorian parlors lit by gas lamps. Direct sun bleaches the leaves.

Water

Every 10 to 14 days in a 6-inch pot, when top 2 inches dry.

Treat the interval as a starting point and the test as the actual instruction. Pot size, light level and season all move the number.

Methodtop-water until draining
Test before wateringtop 2 inches dry

Soil and potting

Standard potting mix with one part perlite added.

Repot roughly every 4 years, or when roots come through the drainage holes and water runs straight through without absorbing.

Common problems

Ranked by how often each turns out to be the cause for this species.

Propagation

Division in soil. Roots in 42 to 90 days.

Preferred methoddivision
Mediumsoil
Time to root42–90 days
Node requiredNo
Best seasonSpring

Sources

  1. ASPCA Animal Poison Control, Toxic and Non-Toxic Plant List — Aspidistra elatior
  2. Missouri Botanical Garden, Plant Finder — Aspidistra elatior
  3. Royal Botanic Gardens Kew, Plants of the World Online
  4. Wikidata entity Q3239567

Compiled and edited by Tony Valcarcel · 2026-09-02
Tony Valcarcel is the editor and publisher of this database, not a horticulturist or a veterinarian. Every fact above is drawn from the sources listed, and toxicity severity is reported only where one of them stated it. How this is sourced.
Last updated 2026-09-02