The Calathea Gecko is a visually striking houseplant, popular for its unique foliage and distinct patterns, adding tropical elegance indoors.
Understanding Your Calathea Gecko
The Calathea Gecko, also known as Calathea bicajoux ‘Gekko’, is distinguished by elongated, lance-shaped leaves, up to 2 feet long. These leaves feature a vibrant green base with intricate, darker green patterns that often evoke gecko scales, hence its name. The underside typically displays a rich purple hue.
As a member of the Marantaceae family, the Calathea Gecko exhibits nyctinasty, or “prayer plant” movement. Its leaves fold upwards in the evening and unfurl with the morning light. Originating from the humid tropical regions of South America, particularly rainforest floors, this plant thrives under filtered light and high humidity.
Essential Calathea Gecko Care
Light
Calathea Gecko thrives in bright, indirect light, mimicking its rainforest habitat. Place near a north or east-facing window, or a few feet from a brighter window with a sheer curtain. Direct sunlight can harm leaves, causing scorching, fading, or brown spots. Too little light can dull vibrant patterns and slow growth.
Watering
Maintaining consistent soil moisture is crucial for the Calathea Gecko. Water when the top 1 to 2 inches (2-3 cm) of soil feel dry, ensuring proper drainage to prevent root rot. Calatheas are sensitive to tap water chemicals, which can brown leaf edges and tips. Using filtered, distilled, or rainwater is recommended.
Humidity
High humidity levels are crucial for the Calathea Gecko, reflecting its tropical origins. Humidity levels below 40% can cause leaf edges to crisp or burn. To increase humidity, consider using a pebble tray filled with water beneath the pot, ensuring the pot does not sit directly in the water. Running a humidifier nearby or grouping the Calathea with other plants can also create a more humid microclimate. While misting can offer a temporary boost, it is generally not sufficient as a long-term humidity solution.
Temperature
Calathea Gecko prefers warm, stable temperatures, ranging between 65°F and 85°F (18°C to 30°C). It is sensitive to cold temperatures and sudden fluctuations, which can cause leaf damage or curling. Avoid placing the plant near drafts from open windows, air conditioners, or heating vents. Consistent temperatures maintain health and vibrant appearance.
Soil
An ideal potting mix for Calathea Gecko is well-draining and rich in organic matter. This provides good aeration and moisture retention for its root system. A tropical plant mix, often amended with perlite, is suitable. Easy drainage prevents soggy conditions and root issues.
Fertilizer
During the active growing season (spring and summer), feed the Calathea Gecko monthly with a balanced liquid fertilizer diluted to half strength. Over-fertilizing can lead to salt buildup. Reduce or cease fertilization during fall and winter when growth slows. Regular fertilization supports vibrant foliage and plant vigor.
Troubleshooting Common Problems
Leaf Issues
Calathea Gecko leaves indicate plant health. Curling leaves suggest insufficient watering. Severely dry soil can also lead to drooping or limp leaves with browning edges.
Yellowing leaves are a sign of overwatering, potentially causing root rot. Prolonged dry soil can also cause yellowing.
Brown edges or tips are linked to low humidity or chemicals in tap water. Faded leaf patterns suggest too much direct sunlight. Adjusting watering, humidity, water type, and light levels can resolve these issues.
Pest Control
Calathea Gecko plants are susceptible to pests like spider mites and mealybugs. Spider mites manifest as tiny spots and fine webbing, especially on leaf undersides. Mealybugs appear as small, white, cotton-like masses, found on leaf undersides and stem joints.
Regular inspection aids early detection. For minor infestations, wiping pests with a rubbing alcohol-dipped cotton swab is effective.
Insecticidal soap or neem oil can be applied to infested areas, ensuring full coverage. Isolating new plants for about 30 days prevents pest introduction.
Advanced Care and Propagation
Repotting
Repotting your Calathea Gecko is necessary every one to two years, or when root-bound (roots growing from drainage holes). Soil degradation also necessitates repotting to refresh the medium.
The best time to repot is during spring or early summer, coinciding with active growth. Choose a pot only one size larger to avoid excessive moisture retention.
Gently remove the plant, inspect roots, and place it in the new pot with fresh, well-draining soil.
Propagation
The primary method for propagating Calathea Gecko is through division, ideally during repotting. Carefully remove the plant from its pot and gently separate the rhizomes, ensuring each division has roots and at least a few leaves. Plant each new section into its own small pot with a suitable potting mix, similar to the parent plant’s requirements. Provide consistent moisture and high humidity to encourage establishment. This method creates new plants while refreshing the parent.