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How to Maintain a Stromanthe Triostar - Varnish + Vine

How to Maintain a Stromanthe Triostar


The Stromanthe Triostar, also known as Stromanthe sanguinea or the tri-color prayer plant, is a captivating tropical houseplant with stunning foliage. Its vibrant leaves exhibit a unique blend of green, cream, and pink shades that can add a touch of elegance to any indoor space. Although this plant requires a bit more care than some other houseplants, with proper attention, it can thrive and become a focal point in your home.

In this brief guide, we will discuss all the essential aspects of maintaining a Stromanthe Triostar in your indoor garden.

What is a Stromanthe Triostar?

The Stromanthe Triostar is a tropical houseplant native to the rainforests of Brazil. It belongs to the Marantaceae family, which includes other popular houseplants such as Calathea and Maranta. The plant is known for its striking tricolor foliage, with leaves that display a remarkable combination of green, cream, and pink hues.

Stromanthe Triostar plants can grow up to 2 to 3 feet tall and wide, making them an excellent choice for adding visual interest and color to any indoor space. Their large, eye-catching leaves not only serve as a decorative element but also help purify the air by absorbing pollutants and releasing oxygen.

Like other plants in the Marantaceae family, the Stromanthe Triostar exhibits nyctinasty, a natural phenomenon in which the leaves fold up at night, resembling hands in prayer. This movement is believed to be a survival mechanism that helps protect the plant from the harsh sun and conserve water in its natural habitat.

But how do you care for the Stromanthe Triostar? Well, let’s go over the most important aspects of caring for this beautiful tropical plant.

Light Requirements

Stromanthe Triostar plants prefer bright, indirect light. Direct sunlight can scorch the leaves, causing them to lose their vibrant colors. To provide the ideal light conditions, place your Stromanthe Triostar near an east or west-facing window, where it will receive ample light without being exposed to harsh sun rays. Alternatively, you can use a sheer curtain to diffuse the sunlight and protect your plant.

Watering and Humidity

Being a tropical plant, the Stromanthe Triostar thrives in high humidity and consistent moisture. To maintain the right level of humidity, you can place a tray filled with water and pebbles under the pot, ensuring that the pot does not touch the water. The water in the tray will evaporate, increasing the humidity around the plant.

When watering your Stromanthe Triostar, always use room temperature water and let it sit for 24 hours to allow the chlorine to evaporate. The plant prefers consistently moist soil, so water it when the top inch of soil feels dry. Overwatering can lead to root rot, while underwatering may cause the leaves to turn brown and crispy. It's essential to strike the right balance to keep your plant healthy.

Soil and Fertilizing

The Stromanthe Triostar requires well-draining soil to prevent waterlogging and root rot. A good potting mix for this plant should contain equal parts peat moss, perlite, and regular potting soil. This mix will ensure proper drainage while retaining enough moisture to keep the plant happy.

Fertilize your Stromanthe Triostar every month during the growing season (spring to summer) with a balanced liquid houseplant fertilizer diluted to half strength. Avoid fertilizing during the dormant months of fall and winter, as the plant's growth slows down and it requires less nutrients.

Temperature and Air Circulation

The ideal temperature range for a Stromanthe Triostar is between 65°F and 80°F (18°C and 27°C). It is sensitive to cold drafts and temperature fluctuations, so avoid placing it near doors, windows, or air conditioning vents. Proper air circulation is also essential to prevent pests and diseases, so ensure there is adequate airflow around your plant.

Pruning and Propagation

Regular pruning can help maintain your Stromanthe Triostar's appearance and encourage bushier growth. Remove any damaged or yellowing leaves by cutting them at the base using clean, sharp scissors. This practice will keep your plant looking neat and healthy.

To propagate your Stromanthe Triostar, divide the plant during repotting or take stem cuttings. For stem cuttings, cut a healthy stem with at least two leaves, dip the cut end in rooting hormone, and plant it in a pot with well-draining soil. Cover the cutting with a plastic bag to maintain humidity and place it in a warm location with indirect light. After a few weeks, roots should develop, and your new Stromanthe Triostar will begin to grow.


Maintaining a Stromanthe Triostar requires attention to detail, but the reward of vibrant, eye-catching foliage makes it worth the effort. By providing the proper light, water, humidity, soil, and temperature conditions, you can keep your Stromanthe Triostar thriving for years to come.

Remember to prune and fertilize regularly during the growing season and be vigilant about monitoring the plant's health to address any potential issues promptly. With consistent care and attention, your Stromanthe Triostar will be a stunning addition to your indoor garden, bringing tropical elegance and color to your home.

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