Calathea ‘Tropistar’, a member of the Marantaceae family, is valued for its striking ornamental foliage. Originating from the tropical Americas, this plant adds exotic beauty to indoor spaces with its vibrant patterns and unique leaf movements. Its leaves exhibit nyctinasty, folding upwards at night and unfurling with morning light.
Calathea Tropistar Care
Light
Calathea ‘Tropistar’ thrives in bright, indirect light, similar to its natural rainforest habitat. Place the plant near a north or east-facing window, as direct sun can scorch leaves, causing fading or brown spots. Insufficient light dulls foliage patterns and slows growth. Rotate the plant periodically for balanced development.
Watering
Maintain consistent soil moisture for Calathea ‘Tropistar’, avoiding waterlogging. Water when the top one to two inches of soil feel dry. Use filtered, distilled, or rainwater, as Calatheas are sensitive to chemicals like fluoride and chlorine in tap water. Allowing tap water to sit out for 24 hours can help dissipate these chemicals.
Humidity
High humidity, between 50% and 70% or higher, is necessary for Calathea ‘Tropistar’. This plant originates from tropical climates with consistently moist air, so supplemental humidity is often needed indoors. Increase humidity by placing the plant on a pebble tray, grouping plants, or using a room humidifier.
Soil
A well-draining potting mix that retains some moisture is suitable for Calathea ‘Tropistar’. A mix rich in organic matter, such as peat moss or coco coir, is beneficial for moisture retention. Perlite, pumice, or orchid bark ensure proper drainage and aeration.
Temperature
Calathea ‘Tropistar’ thrives in warm conditions, with a temperature range of 65°F to 85°F (18°C to 29°C). It is sensitive to cold drafts; temperatures below 60°F (15°C) can damage the plant. Maintain a stable environment, avoiding sudden temperature fluctuations, to promote healthy growth.
Fertilizing
During the active growing season (spring and summer), Calathea ‘Tropistar’ benefits from regular fertilization. Use a balanced liquid fertilizer, such as a 10-10-10 or 20-20-20 formula, diluted to half strength. Apply fertilizer every two to four weeks. Avoid fertilizing dormant, stressed, or dry plants to prevent fertilizer burn.
Repotting Calathea Tropistar
Repotting Calathea ‘Tropistar’ is necessary when the plant shows signs of being root-bound, such as slowed growth or roots emerging from drainage holes. The best time for repotting is early spring, before its active growth phase, allowing for better recovery.
Choose a new container only one to two inches larger than the current pot; an oversized pot can retain excess moisture and cause root rot. Prepare the new pot with a well-draining potting mix. Gently remove the Calathea from its old pot, avoiding root damage. Place the plant in the new pot, then backfill with fresh soil, patting it down to secure the plant and eliminate air pockets.
Propagating Calathea Tropistar
The primary method for propagating Calathea ‘Tropistar’ is division, best performed during repotting in early spring. This timing allows new plants to establish as they begin their growth period. Carefully remove the parent plant from its pot and gently shake away loose soil to expose the root ball.
Look for natural divisions in the rhizomes, visible as distinct clumps of stems and roots. Gently separate these sections by hand, ensuring each new division has roots and at least one leaf or stem. Plant each division into its own pot with a well-draining, moisture-retentive soil mix. Provide consistent moisture and indirect light for establishment.
Common Problems and Pests
Calathea ‘Tropistar’ can exhibit several physiological issues due to environmental factors. Leaf curling indicates underwatering, poor water quality, low humidity, or cold temperatures. Browning tips or edges on leaves often point to insufficient humidity or sensitivity to tap water minerals. Fading foliage patterns suggest too much direct sunlight.
Overwatering leads to yellowing leaves and root rot, while underwatering causes leaves to dry and turn brown. Pests can also affect Calathea ‘Tropistar’. Spider mites are a common concern, identified by fine webbing and tiny yellow dots on leaves, thriving in dry conditions. Mealybugs appear as white, cottony masses, often in leaf joints, leaving a sticky residue.
For spider mites, increase humidity, wipe leaves with water, and apply neem oil. Treat mealybugs by dabbing them directly with a cotton swab dipped in rubbing alcohol. Regular inspection of the plant’s leaves, especially the undersides, aids in early detection and treatment.