Expert Tips on How to Care for Calathea Triostar at Home

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With its striking leaves of green, pink, and white, the Calathea Triostar, also known as Calathea Stromanthe Triostar or Stromanthe Sanguinea ‘Triostar,’ brings a vibrant tropical style indoors. This eye-catching plant is a variety of the popular prayer plant and requires some special care to help it thrive. To care for Calathea Triostar at home, it is important to provide it with warm, humid conditions.

If you’re looking to add a pop of color and texture to your home, the Calathea Triostar makes an excellent choice.

Read on to learn tips for caring for this beautiful houseplant and keeping those colorful leaves healthy and happy.

RELATED: Ultimate Guide To Grow And Care For Calathea Plants Indoors

Finding the Right Lighting Conditions

Calathea triostar plant showing its vibrant foliage

To care for Calathea Triostar, you need to know that it thrives in bright, indirect light, making it essential to find the perfect spot in your home that offers the right balance of light and shade.

Placing the plant near a north or east-facing window is ideal, as it allows for gentle morning or evening sunlight without exposing the plant to intense midday rays.

Avoid placing the Calathea Triostar in direct sunlight, as this can scorch its delicate leaves.

If you notice the foliage turning brown or yellow, it may be a sign that the plant is receiving too much direct sunlight.

To determine if your chosen location has the right lighting conditions, observe the intensity and duration of sunlight throughout the day.

If the area is too bright, consider moving the plant slightly away from the window or filtering the light with a sheer curtain.

On the other hand, if the location appears too dark, supplement the natural light with a grow light specifically designed for indoor plants.

Striking the right balance will help your Calathea Triostar maintain its vibrant colors and lush foliage.

RELATED: 16 Different Calathea Varieties – Stunning Calathea Types

Creating the Optimal Humidity

In addition to proper lighting, maintaining the right humidity levels is crucial when caring for Calathea Triostar.

Native to tropical regions, this plant thrives in high-humidity environments. You can recreate these conditions in your home by employing a few simple techniques.

One effective method is regular misting.

Use a spray bottle filled with distilled or filtered water to mist the leaves of your Calathea Triostar. This helps to increase the humidity around the plant, preventing its leaves from drying out.

Aim to mist the plant every few days, especially during dry seasons or when your home has low levels of humidity.

Another way to maintain humidity is by placing a tray of water near the plant. As the water evaporates, it increases the moisture content in the air surrounding the plant.

Humidity LevelRecommended Action
Below 50%Mist the leaves regularly or place a humidifier nearby.
50-60%Moderate humidity; mist occasionally and keep an eye on moisture levels.
Above 60%High humidity; no additional action needed.

Humidity-loving Companions

It’s worth considering placing your Calathea Triostar near other moisture-loving plants.

This can create a mini tropical oasis in your home and increase the overall humidity in the vicinity of your Calathea. Some great companions for your Triostar include ferns, Peace lilies, and Boston ferns.

With these techniques and companions, you can easily create the optimal humidity conditions for your Calathea Triostar.

Remember to monitor the humidity levels regularly and adjust your methods as needed to ensure the health and vibrancy of your plant.

Key Points:
To mimic its natural habitat, provide sufficient humidity
Place a tray of water or mist regularly to increase humidity
Consider placing Calathea near other moisture-loving plants

Choosing the Right Soil and Potting


Using a well-drained, fertile soil mix is essential for Calathea Triostar, as it helps prevent waterlogging and allows the roots to breathe effectively.

The soil should be a combination of peat moss, perlite, and a high-quality potting mix. This mixture provides the plant with the necessary nutrients while ensuring proper drainage.

Avoid using regular garden soil, as it tends to retain too much moisture and can lead to root rot.


When potting your Calathea Triostar, choose a pot with drainage holes at the bottom to allow excess water to escape. This helps prevent waterlogging and reduces the risk of root rot.

The pot should be slightly larger than the plant’s current pot to allow for growth but not too large, as excess soil can hold excessive moisture.

Fill the pot with the well-drained soil mix and gently place the plant, ensuring the roots are covered and supported adequately.

Recommended Soil Mix for Calathea Triostar

Peat Moss50%
Potting Mix20%

By providing your Calathea Triostar with the right soil and potting conditions, you will ensure the plant’s roots have adequate support and drainage.

This, along with proper watering and humidity levels, creates an optimal environment for the plant’s growth and vitality.

Watering and Moisture Requirements

To care for Calathea Triostar you have to ensure that consistent moisture levels in the soil are maintained, but it’s crucial to avoid waterlogged conditions that can lead to root rot.

To ensure proper watering, it’s best to let the top inch of soil dry out slightly between waterings. This allows the roots to breathe and prevents the plant from sitting in stagnant water.

When watering your Calathea Triostar, use quality water such as distilled or spring water.

This helps to avoid the accumulation of minerals that can damage the plant over time.

Before watering, check the moisture level by sticking your finger into the soil. If it feels dry up to your first knuckle, it’s time to water.

Avoid overwatering as it can lead to root rot and other fungal issues.

Water your Calathea Triostar thoroughly until water drains out of the drainage holes, then discard any excess water that accumulates in the saucer or pot tray.

Remember to empty the saucer after watering to prevent the plant from sitting in standing water.

Signs of OverwateringSigns of Underwatering
  • Yellowing or wilting leaves
  • Musty or unpleasant odor
  • Fungus gnats
  • Drooping leaves
  • Dry, crispy edges on leaves
  • Slow growth

It’s important to note that the Calathea Triostar’s watering needs may vary depending on factors such as humidity levels, temperature, and the size of the plant.

Monitor the moisture level of the soil regularly and adjust your watering schedule accordingly.

With proper watering and moisture management, your Calathea Triostar will thrive and showcase its stunning foliage.

Feeding and Fertilization

To care for Calathea Triostar, you have to provide it with a balanced, diluted fertilizer every couple of weeks to support its growth and maintain its stunning appearance.

The right nutrients are essential for the plant’s overall health and vibrant foliage.

When choosing a fertilizer, opt for a balanced formula with equal ratios of nitrogen, phosphorus, and potassium.

Start by diluting the fertilizer to half the recommended strength to prevent overfeeding. Too much fertilizer can lead to burning of the plant’s roots.

Apply the diluted fertilizer to the soil, ensuring that it is evenly distributed.

Avoid fertilizing the plant during winter or when it is experiencing stress, as it may not be able to utilize the nutrients effectively.

Regularly monitoring the condition of your Calathea Triostar will ensure that it is receiving adequate nutrients.

Look out for signs of nutrient deficiencies such as yellowing leaves, stunted growth, or discoloration.

Adjust the frequency and strength of your fertilization regimen accordingly to address any deficiencies.

I recommend Plant Food Plus with NPK ratio of 10-15-10.

When using fertilizer, always follow the manufacturer’s instructions for application and dosage.

Overfertilizing can lead to nutrient imbalances and damage the plant.

Remember to water your Calathea Triostar after fertilization to ensure proper absorption and prevent any potential chemical burns.

Repotting and Pest Management

Regularly inspecting your Calathea Triostar for pests and considering repotting when necessary will ensure the continued health and beauty of your plant.

Pests such as aphids and spider mites can pose a threat to your Calathea Triostar, causing damage to its leaves and overall vitality.

To prevent pest infestations, carefully examine your plant’s foliage, particularly the undersides of leaves, for any signs of tiny insects or webbing.

If you notice any pests, you can gently wipe them off with a damp cloth or use an organic insecticidal soap solution to control the infestation.

When it comes to repotting, Calathea Triostar generally benefits from being repotted every couple of years or when it outgrows its current pot.

Choose a pot that is slightly larger than the current one to allow for root growth.

Before repotting, gently remove the plant from its current pot, being careful not to damage the roots. Then, place it in the new pot with fresh, well-draining soil.

After repotting, be sure to water your Calathea Triostar thoroughly, ensuring that excess water drains out of the pot.

This will help to settle the plant in its new environment. Use this opportunity to also inspect the plant for any signs of root rot or diseases, such as mushy or discolored roots.

If you notice any issues, trim away the affected roots and treat the plant accordingly.


How do you propagate Calathea Triostar from cuttings?

Propagating Calathea Triostar by taking stem cuttings will not work. This plant can only be multiplied by dividing the rootball. You’ll need to carefully separate healthy rhizomes that have a minimum of 3-4 leaves growing from them. This should be done in the seasons when the plant is actively growing. By dividing the roots this way, each section will develop into a brand new Calathea Triostar plant.

What are common pests and diseases that affect Calathea Triostar?

Calathea Triostar may attract aphids and spider mites. To care for Calathea Triostar, you can tackle these bugs by spraying the plant with insecticidal soap or neem oil. Insufficient humidity also makes Triostar prone to fungal issues like powdery mildew and leaf spot. Mist the leaves daily to prevent mold and fungus by maintaining optimal moisture. Keeping humidity up will help deter pests as well.

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