Drosera venusta

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Drosera venusta is a beautiful and vigorous carnivorous plant known for its upright rosette of long, narrow leaves covered in glistening, sticky tentacles. Closely related to Drosera capensis, this species is native to South Africa and is valued for its elegant form, fast growth, and ease of care. Its sparkling dew and active insect-trapping ability make it a captivating plant for both beginners and experienced growers.

Drosera venusta (Cape Sundew) Care Guide:

Light Requirements

Bright light is essential for healthy growth and abundant dew production. Drosera venusta thrives in bright indirect light to full sun. Ideally, provide 4–6 hours of direct sunlight daily, especially gentle morning sun. Under strong grow lights, the plant develops compact growth and intense red coloration in the tentacles. In low light conditions, leaves may become pale, elongated, and produce little dew.

Watering

Pure, mineral-free water is critical for this species. Always use rainwater, distilled water, or reverse osmosis (RO) water. Minerals present in tap water can accumulate in the soil and damage the roots over time. Keep the growing medium consistently moist using the tray method by placing the pot in 1–2 cm of water. Never allow the soil to dry out completely, especially in warm weather.

Soil and Potting

Drosera venusta requires a nutrient-poor, acidic growing medium. A standard mix of sphagnum peat moss and perlite or silica sand in a 1:1 ratio works very well. Do not use regular potting soil, compost, or fertilizer-enriched mixes, as these will kill the plant. Use plastic or glazed ceramic pots to prevent mineral leaching. Repot every 1–2 years to refresh the medium and support healthy growth.

Temperature and Humidity

This sundew prefers moderate to warm temperatures between 18°C and 30°C. It can tolerate slightly cooler nights but should be protected from frost. Drosera venusta adapts well to a wide range of humidity levels, from 40% to 80%. While higher humidity improves dew production, the plant grows well in normal indoor conditions if light and water are adequate. Good airflow helps prevent fungal issues.

Feeding

Drosera venusta feeds naturally by trapping small insects such as flies, mosquitoes, and fungus gnats. Outdoors, it usually catches sufficient prey on its own. Indoors, occasional feeding with tiny insects or crushed dried insects can promote faster growth. Feeding is optional, and the plant should never be fertilized through the soil, as nutrients can burn the roots.

Dormancy

Drosera venusta does not require a true winter dormancy. Growth may slow slightly during cooler or lower-light periods, but the plant remains active year-round. Continue watering and providing adequate light throughout the year.

Flowering and Propagation

This species flowers readily, producing tall flower stalks with small pink to lavender blooms. Flowering does not usually weaken the plant. Drosera venusta is easy to propagate from seeds or leaf cuttings. It may also self-seed under favorable conditions, producing seedlings around the parent plant.

Common Problems

A lack of dew usually indicates insufficient light, poor water quality, or inconsistent watering. Browning or blackened leaves can be normal as older leaves die off, but widespread damage suggests mineral buildup or drying out. Pests are uncommon, though aphids may occasionally attack flower stalks.

Toxicity

Drosera venusta is non-toxic to humans and pets, making it safe for households with children and animals.

Conclusion

With bright light, pure water, consistently moist nutrient-poor soil, and moderate temperatures, Drosera venusta is an easy and rewarding carnivorous plant. Its fast growth, graceful form, and sparkling dew make it an excellent choice for beginners and collectors alike.