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Stromanthe Triostar

Stromanthe thalia 'Triostar'

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verifiedReviewed by the GreenScout Team

The Stromanthe Triostar is a stunning foliage plant featuring variegated leaves with striking combinations of dark green, cream, and pink or red coloring on the upper surface, with vibrant red or pink undersides. This tropical plant is highly ornamental and relatively more adaptable than many Calatheas, though it still prefers consistent care and high humidity.

Common Problems

Select the problem your Stromanthe Triostar is experiencing to get a treatment guide.

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Brown Tipschevron_right

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Curling Leaveschevron_right

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Yellow Leaveschevron_right

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Slow Growthchevron_right

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Pale Leaveschevron_right

Care Guide

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Light

Bright, indirect light; tolerates moderate light but thrives with consistent filtered brightness; avoid direct sun exposure

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Water

Keep soil consistently moist but well-draining; water when top inch feels dry; use distilled, filtered, or rainwater preferred

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Soil

Well-draining potting mix combining peat moss, orchid bark, perlite, and coconut coir in balanced amounts

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Fertiliser

Fertilize every 3–4 weeks during growing season (spring and summer) with diluted balanced liquid fertilizer; reduce in dormancy

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Temperature

Maintain warm temperatures between 65–75°F (18–24°C); avoid cold drafts and temperatures below 60°F (15°C)

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Humidity

Requires high humidity of 60–75%; mist regularly, use a humidifier, or place on a pebble tray with water

Toxicity

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Non-toxic to cats, dogs, and children; safe houseplant for all household members

Common Diseases

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Common Pests

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Seasonal Care

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Resume regular watering and feeding as growth picks up.

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Peak growing season. Water and feed regularly.

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Reduce watering as growth slows. Stop heavy feeding.

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Minimal watering and feeding. Protect from frost if needed.

Frequently Asked Questions

Is Stromanthe Triostar easier to care for than Calathea?

Yes, relatively — it's more adaptable than many Calatheas, though it still needs consistent care and high humidity of 60–75% to keep its cream, pink, and green variegation looking its best.

Why are the undersides of my Stromanthe Triostar leaves bright pink?

That vivid red or pink underside is a natural part of the leaf's coloring, contrasting with the dark green, cream, and pink pattern on top — it's one of the plant's most ornamental features, not a sign of stress.