Care Sheet for Drosera binata dichotoma extrema 'Green Form'
 
Drosera binata dichotoma extrema 'Green Form' is a large and visually striking carnivorous plant, known for its unique forked leaves that resemble antlers and its vibrant green coloration. This form is less red than other varieties but equally effective in catching prey with its sticky tentacles. It can grow quite large, making it a standout plant in any collection. D. binata dichotoma extrema is suitable for cultivation as both a house plant and in terrariums.
General Information
Common Name: Staghorn Forked-leaf Sundew (Green Form)
Origin: Australia, New Zealand
Growth Form: Large, forked leaves with up to several divisions, forming a sprawling rosette.
Size: Leaves can grow up to 60 cm (24 inches) long, with multiple forks, making it one of the larger sundew species.
House Plant Care
1. Light Requirements
Ideal Light: Bright, indirect sunlight or partial direct sunlight for 6-8 hours daily. The plant's green form does not require intense light to maintain its color.
Artificial Light: If natural light is insufficient, provide full-spectrum grow lights for 12-16 hours daily. LED or fluorescent lights work well.
Direct Sunlight: Can tolerate direct sunlight but may experience some leaf scorching if overexposed. Bright indirect light is preferable.
2. Watering
Watering Method: Use the tray method, where the plant sits in a shallow tray filled with distilled, rain, or reverse osmosis water.
Moisture Level: Keep the soil constantly damp but not waterlogged. Ensure the water level in the tray is maintained.
Water Quality: Avoid tap water as it contains minerals and salts that are harmful to the plant. Use only mineral-free water.
3. Humidity
Recommended Humidity: Moderate to high humidity (50-80%) is ideal. While Drosera binata dichotoma extrema can tolerate lower humidity levels, higher humidity will promote better dew production on its leaves.
Indoor Humidity Control: A humidity tray or room humidifier can help maintain proper moisture levels indoors.
4. Temperature
Optimal Temperature Range: 60-85°F (16-29°C) during the day, with slightly cooler night temperatures around 50-60°F (10-16°C).
Tolerance: This sundew can tolerate brief exposure to cooler temperatures but should be protected from frost and freezing.
5. Soil
Soil Mix: A 1:1 mixture of sphagnum peat moss and perlite or silica sand is ideal. Avoid nutrient-rich soils, as they can harm the plant.
Pot Size: Use a large, deep pot with drainage holes to accommodate its sprawling root system and large leaves.
6. Feeding
Insect Diet: Drosera binata dichotoma extrema naturally captures small insects like gnats, flies, and other bugs using its sticky leaves. Outdoors, it will feed itself.
Manual Feeding: If grown indoors or in low-prey environments, feed it small live or freeze-dried insects (such as bloodworms) every few weeks.
Fertilizer: Avoid fertilizers, as they are harmful to carnivorous plants. The plant derives its nutrients from the insects it catches.
7. Dormancy
Winter Dormancy: In cooler climates, Drosera binata dichotoma extrema may enter a dormancy period in the winter, where it dies back. Reduce watering during dormancy but ensure the soil remains slightly moist.
Non-Dormant Growth: In warmer regions, it may continue to grow year-round without a pronounced dormancy period.
 
Terrarium Care
Ideal for large terrariums
 
1. Lighting
Light Setup: Provide bright artificial lighting with full-spectrum LED or fluorescent bulbs for 12-14 hours per day. This will encourage healthy growth without the need for direct sunlight.
Indirect Natural Light: If placed near a window, ensure the terrarium receives bright but indirect light to prevent overheating.
2. Humidity
High Humidity: A terrarium setup naturally provides high humidity, which is beneficial for Drosera binata dichotoma extrema. Aim for humidity levels around 60-80% to promote healthy dew production.
Ventilation: Ensure some airflow to prevent mold or mildew. Open the terrarium lid periodically or use a terrarium with ventilation slots.
3. Temperature
Temperature Control: Maintain a consistent temperature of 65-80°F (18-27°C) in the terrarium. Avoid direct sunlight, which can overheat the terrarium and cause stress to the plant.
4. Watering in Terrarium
Watering Method: Mist the terrarium and the plant regularly with distilled or rainwater, ensuring the substrate remains consistently moist. You can also use a shallow water tray at the base of the terrarium.
Water Quality: As always, use only mineral-free water to prevent harm to the plant.
5. Substrate
Soil Mix: Use a 1:1 mix of sphagnum peat moss and perlite or silica sand, ensuring proper drainage while retaining moisture.
Drainage Layer: Add a drainage layer (such as gravel or charcoal) at the bottom of the terrarium to prevent water from stagnating at the roots.
6. Feeding in Terrarium
Prey Availability: If natural prey is scarce, you can introduce small insects like fruit flies into the terrarium.
Manual Feeding: Alternatively, feed it freeze-dried or live insects once every few weeks if needed.
 
Additional Tips
Pruning: Remove dead leaves regularly to prevent mold, particularly in the high-humidity environment of a terrarium.
Repotting: Repot every 1-2 years to refresh the soil and provide more space for the roots to expand.
Pests: Keep an eye out for pests such as aphids or spider mites. Use insecticidal soap sparingly, as the plant is sensitive to chemicals.
 
By following this care sheet, Drosera binata dichotoma extrema 'Green Form' will thrive, showcasing its unique forked leaves and vibrant green color. This plant will make a beautiful and functional addition to any terrarium or home collection!