Why Plants Die
Theme

Pink quill

Tillandsia cyanea, Bromeliaceae

Sources last read 14 September 2026.

Not yet rated How forgiving it is has not been judged here yet.

Pink quill (Tillandsia cyanea), the whole plant.
Manfred Werner - Tsui, CC BY-SA 3.0 · Wikimedia Commons

Toxicity is partly unassessed

  • Not assessed for cats. This plant is not on the ASPCA list. That is not a finding of safety: none of the sources read for this site gives an answer either way. Treat it as unknown.
  • Not assessed for dogs. This plant is not on the ASPCA list. That is not a finding of safety: none of the sources read for this site gives an answer either way. Treat it as unknown.
  • Not assessed for people. RHS publishes no harm statement for this plant. That is not a finding of safety: none of the sources read for this site gives an answer either way. Treat it as unknown.

What the sources say about its care

Light
Partial shade
RHS · read 13 September 2026
Humidity

No source read publishes a humidity figure for any plant on this site. What follows is general guidance for foliage plants.

ASHRAE recommends indoor relative humidity between 30% and 60% 30–60%
Penn State Extension · read 13 September 2026
Temperature

How cold this tolerates, not what it prefers. No source read for this site publishes a preferred range for a plant indoors.

H1C — 5–10°C 5–10 °C
RHS · read 13 September 2026
Toxic to cats
Not on the ASPCA list. That is not a finding of safety.
ASPCA · read 13 September 2026
Toxic to dogs
Not on the ASPCA list. That is not a finding of safety.
ASPCA · read 13 September 2026
Harmful to people
No statement of harm to people is published for this plant; that absence is not evidence it is safe.
RHS · read 13 September 2026

Routine care

Propagation
Raise from seed (see Air plants). Offsets can be separated when they are at least one third as big as the parent.
RHS · read 13 September 2026
Pruning
Take off any single rosettes that die after flowering.
RHS · read 13 September 2026
Pests and diseases
Can be troubled by mealybugs and aphids. Diseases: usually none.
RHS · read 13 September 2026

Move something and watch

Loading the simulator. It needs JavaScript; the care table above does not.

About the plant

Wallisia cyanea, or pink quill, is a species of plant of the genus Wallisia in the bromeliad family, native to the rainforests of Ecuador. An epiphytic perennial growing to 50 cm (20 in) high by 50 cm (20 in) wide, it has stemless rosettes of thin, recurved leaves and paddle-shaped spikes of 20 pink bracts with violet flowers, in spring and autumn.

From Wikipedia, CC BY-SA 4.0 · read 13 September 2026

Native range
Ecuador to NW. Peru
World Checklist of Vascular Plants, June 2026 release, CC BY.
Kew WCVP, filed as Wallisia cyanea · read 13 September 2026
Ecuador, Peru
RHS · read 13 September 2026
Climate
wet tropical
World Checklist of Vascular Plants, June 2026 release, CC BY.
Kew WCVP, filed as Wallisia cyanea · read 13 September 2026
Growth form
epiphyte
World Checklist of Vascular Plants, June 2026 release, CC BY.
Kew WCVP, filed as Wallisia cyanea · read 13 September 2026
Clump forming (evergreen)
RHS · read 13 September 2026
Size
Height 0.1-0.5 metres; spread 0.1-0.5 metres after 5–10 years
RHS · read 13 September 2026
Flowering
Flowers pink in spring and autumn; purple in spring and autumn
RHS · read 13 September 2026

Other Tillandsia

More of the Bromeliaceae family

Plants with similar care

Sources

What this does not cover

The figures above are what published sources say, not measurements of the plant in your room. They say nothing about your pot size, your water, the season, or how far from the glass the plant stands, and those decide more than any figure here does.

Humidity has no species figure because no source read for this site publishes one, and the only temperature published for this plant is a cold floor. The simulator fills those gaps with general figures for its kind of plant, marked as general and listed on how we read sources. Where a toxicity row says the plant was not assessed, that is the absence of a finding and not a finding of safety.

If something is already wrong, the diagnosis tool asks about the soil, the window and the watering, which is where the answer usually is.