Add tropical elegance to your indoor space with Rattlesnake Calathea (Goeppertia lancifolia), a visually striking houseplant prized for its long, narrow leaves with deep wavy edges, dark green markings, and rich purple undersides. This plant is known for its unique leaf movement, folding up at night and opening in the morning—a phenomenon known as nyctinasty. Native to Brazil, Rattlesnake Calathea is ideal for brightening low-light interiors and thrives in warm, humid environments. It's a favorite among houseplant collectors for both its visual appeal and non-toxic nature, making it pet- and child-friendly. ? Botanical Information: Common Name: Rattlesnake Plant Scientific Name: Goeppertia lancifolia (formerly Calathea lancifolia) Type: Tropical perennial Foliage Color: Green with dark patterns and purple undersides Mature Height: 18–30 inches USDA Hardiness Zones: 10–11 (Grow as indoor plant in colder zones) Light: Bright, indirect light Water: Keep soil consistently moist (not soggy) ? How to Grow from Seeds: Sowing Time: Best started indoors any time of the year. Soil: Use a well-draining peat-based mix. Keep soil moist but not waterlogged. Seed Depth: Press seeds lightly into the surface; do not bury deeply. Temperature: Maintain 75–85F (24–29C) for optimal germination. Germination may take 2–8 weeks. Humidity: High humidity is essential—consider using a dome or covering during germination. ? Growing Tips: Mist regularly or use a humidifier for best growth. Avoid direct sun, which can scorch the leaves. Use filtered or distilled water to prevent leaf browning from salts. Fertilize monthly with a diluted houseplant fertilizer during the growing season (spring to fall). Repot annually or when root-bound to encourage healthy growth