Begonia chlorosticta is a stunning, sought-after foliage begonia from Borneo, known for its dark leaves with bright green or silvery spots and red undersides, thriving in high humidity (terrarium/greenhouse) with bright indirect light, requiring consistent moisture but not soggy soil, and known for its distinctive patterns, though it can be challenging for beginners. Different forms, like ‘Green Form’ and ‘Dark Form’, offer variations in color, and it’s a popular, shrubby cane begonia that roots well but needs good air circulation.
Key Characteristics
Foliage: Dark green/burgundy leaves with contrasting chartreuse or silvery spots; red stems and undersides.
Growth Habit: Shrubby, cane-type begonia, reaching up to 40cm.
Flowers: Small pink (male) to larger red (female) flowers.
Origin: Rainforests of Sarawak, Borneo, growing on moist forest floors.
Care Requirements
Light: Bright, indirect, filtered light; avoid direct sun.
Humidity: High (60-70%+); excellent for terrariums or humid rooms.
Watering: Keep soil consistently moist but not waterlogged; allow topsoil to dry slightly.
Soil: Very well-draining, airy mix (e.g., with sphagnum moss).
Temperature: Prefers 60–75°F (16–24°C); sensitive to cold drafts.
Airflow: Crucial; stagnant air encourages fungal issues (melting).
Cultivation Tips
Propagation: Roots from leaf cuttings and stem cuttings but can be slow; use moist moss/media.
Feeding: Regular, dilute fertilizer during growing season; potassium-rich feeds can help.
Pruning: Remove spent flowers (inflorescences) to redirect energy and prevent leaf drop.
Acclimation: May need adjustment to lower home humidity after growing in terrariums
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