Triostar Stromanthe

Triostar is a cultivar of Stromanthe thalia, also sold as Stromanthe sanguinea ‘Triostar’. It belongs to the Marantaceae family. [3][5]

Its elongated leaves carry green, cream and pink patterns above, with burgundy-pink undersides. [5]

The leaves fold upward at night, showing more of their colorful undersides, and change position through the day. [6]

Place Triostar in bright indirect light. Filter strong window sun or use a shaded position outdoors during suitable warm weather. [10]

Adjust the position as seasonal light changes, keeping the growing leaves bright while protecting them from direct scorching sun. [8]

Use a quality soilless houseplant medium that holds moisture while draining freely. Keep the root zone aerated. [6]

Choose a pot with drainage holes, proportionate to the root ball. Leave space below the rim for watering. [12]

Triostar grows well in steady warmth above 65°F / about 18°C. Protect it from cold drafts. [6]

Provide humid air around the foliage. Keep the plant away from drying radiator heat and use a bright, humid room when available. [9]

In a dry room, use a humidifier and monitor humidity with a sensor. Keep the plant away from direct heat and drying drafts. [14]

Feed periodically during active growth, following the product’s indoor-plant directions. [6]

A low-nitrogen liquid fertilizer is specified in RHS’s cultivar guidance; follow the chosen product’s directions. [7]

Snip away dried or damaged leaves with clean scissors to keep the clump tidy. [9]

Enjoy the pattern across the whole clump: the proportions of cream, green and pink vary between leaves. [6]

Reduce feeding as growth slows and resume with active new growth. [8]

Check winter humidity and keep foliage away from heating vents. Continue checking moisture before watering. [14]

For a summer outdoor display, acclimate gradually after frost risk has passed and bring the plant indoors before autumn frost. [6]

Dottie has rounded dark leaves traced with a pink inset band and midrib. [2]

Triostar has longer blades, irregular green, cream and pink patterns, and burgundy-pink undersides. [5]

Dottie belongs to Goeppertia; Triostar belongs to Stromanthe. Their distinct leaf shapes create two different displays within the prayer-plant family. [1][3]