The Calathea Network, scientifically known as Goeppertia kegeljanii or Calathea musaica, is a popular indoor plant. It features an intricate, mosaic-like pattern on its leaves, often described as a complex network of light and dark green veins. This distinctive foliage adds a vibrant accent to any indoor setting.
Identifying Calathea Network
The Calathea Network is identified by its signature leaf pattern. This intricate, reticulated venation creates a mosaic-like appearance across the leaf surface. The pattern consists of numerous small, rectangular segments of varying shades of green, resembling a finely woven net. The common name “Network” directly references this distinctive visual characteristic.
The leaves display a light green base color with darker green lines forming an intricate grid. The undersides of the leaves often exhibit a uniform, lighter green hue. The overall leaf shape is oval, with a slightly glossy texture.
Calathea Network Care
Light
Calathea Network thrives in bright, indirect light. Place the plant near an east or north-facing window for gentle morning sun or consistent ambient light. Avoid direct sunlight, as it can scorch leaves, leading to faded patterns and crispy edges. Filtered light, such as from sheer curtains, protects foliage from intense midday rays.
Water
Keep the soil consistently moist but never waterlogged to prevent root rot. Allow the top inch of soil to dry out slightly before watering again, typically every 5-7 days. Using filtered, distilled, or rainwater is recommended, as Calatheas are sensitive to chlorine and fluoride in tap water, which can cause leaf tip burn.
Humidity
High humidity levels are important for the Calathea Network, mirroring its native tropical environment. A humidity level of 60% or higher is beneficial. To increase humidity, place the pot on a pebble tray filled with water, ensuring roots do not sit directly in the water. Running a humidifier nearby or grouping plants together also creates a more humid microclimate.
Soil
A suitable potting mix for Calathea Network offers excellent drainage and good moisture retention. A blend often includes peat moss or coco coir for moisture, perlite or orchid bark for drainage, and general potting soil. This combination provides an airy, consistently moist environment for the root system. Good aeration prevents compaction and supports healthy root development.
Temperature
Calathea Network prefers warm and stable temperatures, ideally between 65°F and 80°F (18°C to 27°C). Avoid temperature fluctuations, as sudden drops can stress the plant. Keep the plant away from drafts from windows, doors, or air conditioning vents to maintain a consistent environment.
Fertilizer
During the growing season, from spring through early autumn, apply a balanced liquid fertilizer. Fertilize once every two to four weeks, diluting it to half the strength recommended on the label. Reduce or cease fertilization during the dormant winter months. Over-fertilization can lead to nutrient burn and damage the roots.
Potting and Repotting
Calathea Network plants do not require frequent repotting. Repotting is necessary every one to two years, or when the plant becomes root-bound, signaling it has outgrown its container. The best time for repotting is during spring, at the beginning of the active growing season. Choose a pot only one size larger than the current one to prevent excess moisture retention.
Common Calathea Network Problems
Pests
Calathea Network plants can attract common houseplant pests. Spider mites are a common concern, appearing as tiny red or brown dots and creating fine webbing on leaf undersides. Mealybugs, looking like small cottony masses, may also infest the plant, typically found in leaf axils. Regular inspection helps early detection. Treatment involves wiping affected areas or applying insecticidal soap.
Diseases
Calathea Network plants are robust, but certain conditions can lead to fungal issues. Root rot is the most common disease, resulting from consistently waterlogged soil due to overwatering or poor drainage. Symptoms include wilting, yellowing leaves, and a soft stem base. Prevent root rot by ensuring proper drainage and allowing the topsoil to dry slightly between waterings.
Leaf Issues
Several leaf issues indicate environmental stress in Calathea Network. Browning leaf tips or edges often signal low humidity or sensitivity to chemicals in tap water. Curling leaves suggest insufficient moisture, either from underwatering or low humidity. Yellowing leaves can indicate overwatering or a nutrient deficiency. Address these issues by adjusting watering, providing higher humidity, or switching to filtered water.
Propagating Calathea Network
The most effective method for propagating Calathea Network is through division. This process is best done during repotting in spring, when the plant is actively growing. Carefully remove the plant from its pot and gently loosen the soil around the root ball. Identify natural divisions or clumps within the root system, each with its own roots and several leaves.
Using a clean, sharp knife or your hands, carefully separate these divisions, ensuring each new section has a healthy portion of roots. Plant each division into a small pot filled with fresh, well-draining potting mix. Water the newly potted divisions thoroughly and place them in a warm, humid environment with indirect light. Consistent moisture and high humidity will help the new plants establish successfully.