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How To Grow The Calathea Sanguinea (Stromanthe Triostar)

How To Grow The Calathea Sanguinea (Stromanthe Triostar)

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Tropical plants are frequently grown as houseplants, and they are almost all easy to maintain. However, some plants need more attention than others and won’t thrive unless all their requirements are met.

In this article, I’ll tell you more about the Calathea sanguinea, which is a plant that needs lots of attention. This is one of the most beautiful plant species in the world, so it’s definitely worth it!

If you stick to the plant care guide below, there’s no reason your Calathea triostar won’t flourish!

Let’s get started!

What Is The Calathea Sanguinea?

Calathea Sanguinea with wooden background

There are many common names for the Calathea sanguinea, such as Stromanthe triostar, Stromanthe sanguinea, and Calathea tricolor.

This plant belongs to the Marantaceae family. If you are unfamiliar with that name, maybe the prayer plant family rings a bell!

Other common plant species in this family include Calathea fasciata, Calathea rosy, Calathea Maui queen, and Calathea ornata.

The stromanthe triostar plant initially grew in South America, and it features breathtaking, elongated, dark green leaves with white veinings on the surface. The leaves are entirely variegated and have purplish-red undersides.

The Stromanthe tricolor can reach up to 2 feet in length and width. The leaves are closed during the night, and as the morning approaches, they open up.

Regarding toxicity, the Stromanthe triostar is safe for humans and pets. This plant is an air purifier and will make a wonderful addition to your home!

Calathea Sanguinea Care Guide

Calathea Sanguinea

The Calathea tricolor is native to tropical regions of South America. The best thing you can do for this prayer plant is mimic its natural surroundings, which is actually the only way to get it to thrive.

Let’s see the perfect conditions for the Stromanthe sanguinea plant!

Light Requirements

If you want your tricolor Calathea to flourish, you must ensure it gets a lot of bright indirect light. This light level is essential if you want to preserve variegation.

Low light may affect a plant’s growth and cause it to lose variegations. On the other hand, direct sun may cause sunburns and curling of Calathea leaves.

Inadequate light levels will change the watering needs of your prayer plant and cause additional problems.

Temperature & Humidity Requirements

This Calathea plant does best when cultivated at temperatures between 70 and 85 degrees Fahrenheit. Your tricolor plant may grow in slightly lower temperatures, but cannot withstand temperatures below 60 degrees Fahrenheit.

The Triostar plant is hardy to USDA growing zones 10 through 12.

The Calathea tricolor originates from a humid environment, so you should ensure high humidity for this plant to thrive.

You can raise humidity levels by misting or grouping your plants; for example, put Philodendrons next to your Calathea to create a microclimate.

A humidifier is the best option for getting the humid conditions that the Stromanthe sanguinea needs.


Porous and well-draining soil is the type of potting soil for the Calathea sanguinea. If the potting soil doesn’t drain well, your Calathea plant may get overwatered quickly.

Regular potting soil might not be the best choice for your plant; the best idea would be to make your own potting mix by adding perlite to enhance drainage.

Water Requirements

Calathea Sanguinea plants

This plant is really fussy about the watering schedule, the water quality, and the water temperature. The key to a perfect watering schedule for a triostar plant is waiting until the top inch of soil dries out.

This plant won’t tolerate even a short period of drought! You will need to water it less if the temperatures are slightly lower, but the soil must always be moist.

If you add too much water, you’ll face an even bigger issue. Overly wet soil causes root rot, and your Calathea will start dying if you don’t react.

Regarding water type and temperature, you’ll need to use room-temperature rainwater. Tap water isn’t the best choice for the triostar plant.

If you can’t use rainwater, I recommend filtered water as it contains fewer chemicals than tap water.


You must fertilize your Sanguinea plant every 3-4 weeks during the growing season. Use a diluted houseplant fertilizer, and don’t feed the plant during dormancy.


You don’t need to repot your Sanguinea plant very often. Once the roots start poking out from the drainage holes, put your plant in a new pot with fresh soil. Make sure the new pot for your Calathea isn’t too big; 2 inches larger in diameter will suffice.

Repot in spring and ensure a lot of indirect sunlight to avoid transplant shock.

How To Propagate The Stromanthe Sanguinea Plant

Calathea Sanguinea leaves

The best way to propagate this prayer plant is by using the rhizome division method. This plant propagation method gives great results and won’t take much of your time.

First, make sure the mother plant is healthy; expose the root system and separate it so that each section has three to four leaves.

I propagate my Calathea sanguinea in spring; you can do it in summer, but don’t wait for the new growth to appear.

Calathea Triostar: Common Problems

Here is a list of common problems that afflict this prayer plant, and how to fix them:

Pests: Aphids and spider mites can infest the triostar. The most common cause of pests is low humidity. Raising humidity, rubbing the leaves with neem oil, or using insecticides will fix the problem.

Brown spots: Direct sunlight, chemicals from tap water, and underwatering cause brown spots. Ensure enough indirect sunlight, use rainwater, and only water your Calathea sanguinea when the top inch of soil dries out.

Wrapping Up

The stunning Calathea sanguinea leaves everyone who sees it speechless. The plant is fussy about care requirements, but it will undoubtedly thrive once you learn the basics.

If you are a beginner gardener, you might want to try some other houseplants with low care requirements before you start growing the Stromanthe triostar plant.

Until next time!

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