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The Calathea Triostar, also called Stromanthe Triostar, is a spectacular tropical plant admired for its artistic foliage. Each leaf is a living canvas — deep green brushed with cream, pink, and white on top, and a striking magenta-purple underside. This plant doesn’t just add color to your home — it moves! Like other prayer plants, its leaves fold upward at night and open in the morning, following the light.
🌿 Calathea Triostar (Stromanthe sanguinea ‘Triostar’) Care Guide:
☀️ Light Requirements
Calathea Triostar thrives in bright, indirect light. It loves filtered sunshine that mimics the dappled light of its native rainforest.
Place it near an east-facing window or a bright room with plenty of natural light but no harsh direct rays.
Avoid direct sunlight, which can bleach the colorful variegation and cause crispy leaf edges.
In too little light, growth slows and leaf colors fade to dull green.
If you’re growing it indoors with artificial light, position it near full-spectrum LED grow lights for best results.
🌡️ Temperature and Humidity
Being a tropical species, Calathea Triostar loves warm, humid environments.
Ideal temperature range: 18°C – 28°C.
Keep it away from cold drafts, air conditioners, and heaters.
It does not tolerate temperatures below 15°C.
For humidity, aim for 60% or higher. Brown leaf edges are a sign of dry air. You can maintain humidity by:
Using a humidifier,
Placing the pot on a pebble tray filled with water, or
Grouping it with other tropical plants.
Regular misting also helps, but avoid over-wetting the leaves to prevent fungal spots.
💧 Watering
Calatheas are sensitive to water quality and moisture levels. They prefer consistently moist, but not soggy, soil.
Water when the top 2–3 cm of soil feels slightly dry.
Use filtered, distilled, or rainwater if possible — tap water containing chlorine, fluoride, or salts can damage the leaves.
Ensure your pot has drainage holes to prevent waterlogging.
During the growing season (spring to autumn), keep the soil evenly moist. In winter, reduce watering slightly as the plant’s growth slows down.
🌱 Soil
Calathea Triostar grows best in a light, well-draining yet moisture-retentive soil. The perfect mix mimics the rich, airy forest floor:
1 part coco peat or peat moss
1 part compost or worm castings
1 part perlite or orchid bark
This allows roots to breathe while holding enough moisture. Avoid heavy clay-based soils that stay wet too long.
🌸 Fertilizing
Feed your Calathea Triostar regularly during the active growing months (spring through early autumn).
Use a balanced, water-soluble fertilizer (e.g., 10-10-10 or 20-20-20) diluted to half strength every 3–4 weeks.
In winter, pause fertilization completely.
Too much fertilizer can lead to salt build-up and brown leaf tips, so flush the soil with plain water occasionally to clear residues.
✂️ Pruning and Maintenance
Triostar doesn’t need heavy pruning, but regular maintenance keeps it looking vibrant:
Remove yellow or crispy leaves at the base with clean scissors.
Wipe the leaves gently with a damp cloth to remove dust and reveal their natural shine.
Rotate the plant every few weeks to ensure even growth on all sides.
Repot every 2–3 years or when roots start circling the pot, using fresh potting mix to maintain good aeration.
🌿 Propagation
You can propagate Calathea Triostar through rhizome division during repotting:
Gently remove the plant from its pot.
Divide the root clump into sections, ensuring each has several leaves and roots.
Replant each division in moist, well-draining soil.
Keep them in warm, humid conditions until established.
Stem or leaf cuttings do not root successfully, so division is the most reliable method.
🐛 Common Problems and Pests
Brown leaf tips: Low humidity or chemicals in tap water.
Yellow leaves: Overwatering or poor drainage.
Curling leaves: Underwatering or exposure to cold drafts.
Pests: Spider mites, mealybugs, and aphids occasionally appear. Treat infestations with neem oil or insecticidal soap and maintain high humidity to discourage pests.
🏡 Decor and Benefits
The Calathea Triostar is perfect for bright indoor corners, living rooms, or offices where it can be admired up close. Its multicolored leaves complement both modern and natural décor styles. Beyond beauty, it also purifies indoor air, removing common toxins and promoting a healthier living space.
🌼 In Summary
The Calathea Triostar (Stromanthe sanguinea ‘Triostar’) is a tropical showstopper that thrives on humidity, warmth, and gentle light. Keep its soil moist, its air humid, and its surroundings draft-free — and it will reward you with bold, vibrant foliage that feels alive and ever-changing. With a little consistency and care, your Triostar will flourish as a dazzling centerpiece in your indoor jungle.
