Drosera filiformis var. tracyi: 1-3 Plants in a Tissue Culture Cup

Visual Description:

Drosera filiformis var. tracyi, commonly known as the Thread-leaf Sundew, is a captivating carnivorous plant characterised by its tall, slender leaves that unfurl into delicate threads. Each leaf is covered in glandular hairs that secrete a sticky mucilage, giving the plant a dewy, glistening appearance. This mucilage traps insects, providing essential nutrients to the plant. The leaves of Drosera filiformis var. tracyi are typically green, often with a hint of red, and can grow up to several inches long, making it a striking addition to any carnivorous plant collection.

Country of Origin:

Native to the southeastern United States, particularly in sandy, acidic soils along the coastal plains.

Ideal Growing Conditions:

• Bright, direct to indirect sunlight
• Humid environment with well-draining, nutrient-poor soil (a mix of sphagnum peat moss and perlite or sand)
• Keep soil consistently moist with distilled or rainwater (avoid tap water)
• Temperature range of 70-85°F (21-29°C) during the growing season, with cooler temperatures during dormancy

Additional Information:

• Watering Tips: Use only distilled or rainwater; avoid tap water, which can harm the plant due to its mineral content.
• Feeding: Drosera filiformis var. tracyi is excellent at catching its own prey, but feeding it small insects can promote faster growth.
• Dormancy: This plant requires a winter dormancy period; reduce watering and keep the plant cool during this time.

How to Harden Tissue Culture Drosera:

Gradually acclimatise your tissue-cultured plants to outdoor conditions. Start by placing the plant in a shaded area for a week, then slowly introduce it to more sunlight over the next 2-3 weeks. Maintain high humidity during this period and be cautious not to expose the plant to direct sunlight or strong winds too quickly.