Why Plants Die
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Scarlet star

Guzmania lingulata, Bromeliaceae

Sources last read 14 September 2026.

Middling It gives warning, with time to act.

Also called droophead tufted airplant, Orange Star and Vase Plant.

Scarlet star (Guzmania lingulata), the whole plant.
Mokkie, CC BY-SA 3.0 · Wikimedia Commons

Toxicity is partly unassessed

  • Listed as non-toxic to cats by ASPCA.
  • Listed as non-toxic to dogs by ASPCA.
  • 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
Water
Moist but well-drained
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.

H1A — warmer than 15°C 15 °C
RHS · read 13 September 2026
Soil
Loam, Sand; pH Neutral
RHS · read 13 September 2026
Toxic to cats
Listed as non-toxic
ASPCA names a variety or cultivar (Guzmania lingulata minor) of this species.
ASPCA, filed as Guzmania lingulata minor · read 13 September 2026
Toxic to dogs
Listed as non-toxic
ASPCA names a variety or cultivar (Guzmania lingulata minor) of this species.
ASPCA, filed as Guzmania lingulata minor · 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

How it usually goes wrong

Dry, curled edges on leaves near a heater

A yellow halo sits just inside the brown edge on the scarlet star, and new leaves often come in already tipped with brown during the heating season.

Dry air takes water from the leaf surface continuously, and the tissue at the edge is last in the queue for what the roots send up. Penn State Extension notes there is no single humidity figure that suits every indoor plant.

Telling it apart: When it started. Edges that browned as the heating came on point at air; edges that browned through a wet summer do not.

Penn State ExtensionScarlet star brown leaf tips and edges: causes
Flower buds shed while still closed

Buds appear on the scarlet star and then fall while still closed, often within days of the plant being moved, turned or left to dry out.

Sudden changes in light, warmth or watering cause buds to be abandoned, because a bud is expensive and the plant cannot tell whether conditions will recover. Its source describes partial shade.

Telling it apart: What happened in the fortnight before the buds dropped. A move, a turned pot or a dry spell is the usual answer.

RHSDiagnose leaf drop on this Scarlet star
New leaves are smaller than the old and further apart

Growth on the side of the scarlet star away from the light slows or stops, so the plant becomes lopsided over a few months.

Its source places it in partial shade. In less light than that the plant cannot fund full-sized leaves, so it makes smaller ones and spends the difference on stem.

Telling it apart: What the newest growth looks like beside the oldest. Light changes what arrives next; feeding changes what is already on the plant.

RHSDiagnose leggy growth on this Scarlet star
The plant yellows from below and the pot stays heavy

Yellow spreads upward through the scarlet star a few leaves at a time, and the compost darkens and stays cold to the touch.

Roots sitting in water run out of oxygen, and the first sign above ground is the oldest leaves being given up. Its source describes moist but well-drained soil, which is air as much as water.

Telling it apart: Whether the drainage hole drips when the pot is tilted. Water still running out days later is the answer.

RHSDiagnose yellowing leaves on this Scarlet star

Not sure which it is? Ask the diagnosis questions for Scarlet star.

Routine care

Watering
Use a bromeliad or orchid potting mix and give the roots little water. Keep water in the central cup of the rosette, particularly in summer.
NC State Extension · read 13 September 2026
During growth, mist every day early in the morning with soft water; in winter keep barely moist and stop misting.
RHS · read 13 September 2026
Propagation
By division.
NC State Extension · read 13 September 2026
Sow seed at 27°C, or in mid spring remove offsets.
RHS · read 13 September 2026
Pruning
Pruning is not needed.
RHS · read 13 September 2026
Pests and diseases
Mealybugs can occur. 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

Guzmania lingulata, the droophead tufted airplant or scarlet star, is a species of flowering plant in the family Bromeliaceae, subfamily Tillandsioideae. This evergreen epiphytic perennial is native to rainforest habitats in Central America, northern and central South America and southern Mexico. The Latin word lingulata means "tongue-shaped". The foliage grows in a star-shaped basal rosette culminating in an orange and red bracted inflorescence. It is among the most commonly cultivated bromeliad types, with cultivars producing flowers in shades of maroon, red, orange, yellow or pink.

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

Native range
SE. Mexico to Trop. America
World Checklist of Vascular Plants, June 2026 release, CC BY.
Kew WCVP · read 13 September 2026
South East Mexico to Tropical America
NC State Extension · read 13 September 2026
Tropical America
RHS · read 13 September 2026
Climate
wet tropical
World Checklist of Vascular Plants, June 2026 release, CC BY.
Kew WCVP · read 13 September 2026
Growth form
perennial or epiphyte
World Checklist of Vascular Plants, June 2026 release, CC BY.
Kew WCVP · read 13 September 2026
Epiphyte, Herbaceous Perennial; habit clumping
NC State Extension · read 13 September 2026
Clump forming (evergreen)
RHS · read 13 September 2026
Size
Height 12–24 in; width 12–24 in
NC State Extension · read 13 September 2026
Height 0.1-0.5 metres; spread 0.1-0.5 metres after 2–5 years
RHS · read 13 September 2026
Flowering
Flowers red/burgundy, white; blooms in summer
NC State Extension · read 13 September 2026
Flowers orange in summer; red in summer; white in summer; yellow in summer
RHS · read 13 September 2026

Common problems with Scarlet star

Other Guzmania

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.