The Calathea White Star, known for its striking white-striped leaves with subtle pink and green undertones, is a captivating addition to any indoor plant collection. Also referred to as Calathea majestica or “Majestic Prayer Plant,” its vibrant foliage and unique patterns make it a focal point. While it thrives with specific care, its visual impact makes the effort worthwhile.
Understanding Calathea White Star Needs
Light
Calathea White Star thrives in bright, indirect light, mimicking its natural rainforest habitat beneath a tree canopy. Direct sunlight is harmful, causing its white stripes to fade or scorching the leaves. Optimal placement is near a north or east-facing window, about 2 to 3 feet away. Insufficient light can also lead to discoloration or wilting.
Watering
Consistently moist, but not waterlogged, soil is ideal for the Calathea White Star. Water when the top inch or two of soil feels dry. Overwatering causes root rot, while dry soil stresses the plant. Calatheas are sensitive to tap water chemicals like fluoride and chlorine, which can brown leaf tips. Use distilled, filtered, or rainwater to prevent these issues.
Humidity
High humidity is important for Calathea White Star, as it originates from the humid rainforests of South America. Maintain levels at 60% or higher, though 50% is tolerable. Signs of insufficient humidity include crispy or browning leaf edges and curling leaves.
Several methods can help increase humidity around the plant:
Use a humidifier for consistent moisture.
Group with other plants to create a humid microclimate through transpiration.
Place the pot on a pebble tray filled with water, ensuring the pot bottom does not sit in water.
Regular misting can supplement moisture, but is a short-term solution.
Temperature
Calathea White Star prefers a stable temperature range of 65°F to 80°F (18°C to 27°C). It is sensitive to sudden fluctuations and cold drafts, which can cause stress, leaf curling, or damage. Keep the plant away from cold windows, air conditioning vents, or heating sources. Temperatures below 65°F (18°C) can cause the plant to suffer.
Soil
An ideal potting mix for Calathea White Star is well-draining yet retains adequate moisture, mimicking its native habitat’s rich organic matter. A peat-based mix or a combination of houseplant compost, perlite, and coconut coir works well for drainage and moisture retention. Adding orchid bark and activated charcoal can further improve aeration and prevent root rot. The soil pH should be slightly acidic to neutral, ranging from 6.0 to 7.0.
Fertilizing
During its active growing season in spring and summer, Calathea White Star benefits from regular fertilization. Apply a balanced liquid fertilizer, diluted to half or quarter strength, monthly. This prevents harmful salt buildup and fertilizer burn, which can damage roots and brown leaves. Reduce or withhold fertilization entirely during fall and winter when growth slows.
Routine Care Practices
Repotting
Repotting a Calathea White Star is needed every one to two years, or when it becomes root-bound, indicated by roots emerging from drainage holes. Spring, before the new growing season, is the best time to minimize stress. When repotting, move up only one pot size to avoid excessive moisture retention and root issues. Gently remove the plant from its old pot and ensure the new potting mix is similar for easier acclimation.
Pruning
Calathea White Star requires minimal pruning. The main reason is to remove dead, yellowing, or damaged leaves. This maintains the plant’s aesthetic appeal and directs energy towards healthy new growth. Use clean, sharp shears to make precise cuts at the base of the leaf stem. Removing unhealthy foliage also helps prevent the spread of diseases or pests.
Addressing Common Problems
Leaf Issues
Browning leaf tips or edges often indicate low humidity or hard tap water. Increase humidity or switch to distilled/filtered water. Curling leaves signal underwatering, as they curl inwards to conserve moisture.
Yellowing leaves can stem from overwatering, leading to root rot. They can also indicate nutrient imbalance, insufficient light, or pest infestation. Assess watering, light exposure, and recent fertilization if leaves yellow. Drooping leaves indicate thirst, but can also signal overwatering or root problems if the soil is consistently wet.
Pest Management
Calathea White Star can be susceptible to common houseplant pests, especially spider mites, which prefer dry conditions. Signs of spider mites include fine webbing and tiny discolored spots. Mealybugs appear as small, white, cotton-like masses, feeding on plant sap on stems and leaf undersides. Scale insects are small, hard bumps that also feed on sap.
Upon detection, isolate the affected plant to prevent spread. For minor infestations, wipe leaves with a damp cloth. For persistent issues, apply organic solutions like insecticidal soap or neem oil, following instructions. Consistent monitoring and optimal humidity deter pests like spider mites.
Safety Considerations
Calathea White Star is non-toxic to common household pets, such as cats and dogs, and humans if ingested. This makes it a suitable choice for households with curious pets or small children. While safe, it is good practice to place any houseplant where accidental consumption is less likely, ensuring the plant’s well-being and preventing potential mess.