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

Visual Description:

Drosera filiformis var. tracyi (Red) is a striking variant of the Thread-leaf Sundew, known for its vibrant red coloration. The tall, slender leaves unfurl into delicate threads, each covered in sticky, glistening glandular hairs that trap insects. The red hue of the leaves becomes more intense under bright light, making this plant a visually captivating addition to any carnivorous plant collection. The overall structure and function are similar to the standard variety, but the deep red color adds an extra level of visual interest.

Country of Origin:

Native to the southeastern United States, particularly in sandy, acidic soils along the coastal plains, though this specific red variant has been selected and cultivated for its unique coloration.

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 (Red) 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.