Temperature
55–85°F
Keep away from winter window glass and heating vents.
Air plant
Tillandsia ionantha
Air plant wants bright indirect light and water every 5 to 10 days, once the leaves feel light and the tips start curling. Non-toxic to cats and dogs.
Light
Bright indirect
LowMediumBright indirectDirect
Within three feet of an east or south window. Bright light without direct midday sun.
Water
Every 5–10 days
Baseline for a 6-inch pot indoors. Check first: water when the leaves feel light and the tips start curling, not on a schedule.
Humidity
50% and up
Wants 60%. Struggles in dry winter air.
Difficulty
Moderate
Scores 3 of 5: Scores 3 of 5: it needs no pot and no soil, and it is killed by the two things people do — sitting it in a closed glass globe with no airflow, and leaving water in the crown after soaking. Soak for half an hour, then shake it out and dry it upside down.
Habit
Rosette
Grows to 2–6 inches. No support needed.
Non-toxic to cats and dogs
Eating a large amount of any plant can still cause mild stomach upset.
Detail for cats → Detail for dogs →
What each authority says
- ASPCA
- No record page found under any name tested.
- NC State Extension
- Entry exists and records no poison data.
Light
Bright indirect light. Within three feet of an east or south window. Bright light without direct midday sun.
Water
Every 5 to 10 days in a 6-inch pot, when the leaves feel light and the tips start curling.
Treat the interval as a starting point and the test as the actual instruction. Pot size, light level and season all move the number.
| Method | soak and dry |
|---|---|
| Test before watering | the leaves feel light and the tips start curling |
Soil and potting
No soil at all. Grown bare, on wood or in a dish.
Repot roughly every 0 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. Each links to a diagnosis page with the causes ranked for this species.
- Brown crispy edges monitor
- Root rot act today
- No offsets monitor
Pests
Recorded for this species. Each links to identification and treatment.
- Mealybugs this week
- Scale insects this week
Propagation
Offsets in bark. Roots in 42 to 90 days.
| Preferred method | offsets |
|---|---|
| Medium | bark |
| Time to root | 42–90 days |
| Node required | No |
| Best season | Spring and summer |
Sources
- North Carolina Extension Gardener Plant Toolbox — Tillandsia ionantha (consulted; entry exists and records no poison data.) Checked 2026-09-12.
- Wikidata entity Q1937140 — taxonomy and entity identity.
- Royal Botanic Gardens Kew, Plants of the World Online — Tillandsia ionantha Accepted name; family Bromeliaceae. Checked 2026-09-12.
- Photograph: Daderot, Wikimedia Commons , Public domain.
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