Scientific Name: Drosera slackii

Also known as: Slack’s Sundew

Origin: Native to the southwestern Cape of South Africa, where it grows in nutrient-poor, seasonally wet sandy soils and coastal fynbos habitats.

Drosera slackii is a compact, temperate sundew named in honour of renowned carnivorous plant expert Adrian Slack. It forms a dense, flat rosette of wide, paddle-shaped leaves that are often tinged with deep red under strong light. Each leaf is coated in sticky mucilage that traps small flying insects. This species is beloved for its elegant symmetry, vivid colouration, and slow, steady growth—perfect for terrariums or open-air setups with mild conditions.

Growing Requirements

Light: Bright indirect light to full sun. Develops deep red tones under strong artificial lighting (5000–6500K) or natural sunlight.

Water: Use only distilled, rainwater, or reverse osmosis (RO) water.

Watering:

• Active growth: Keep the soil wet at all times. Grow in a shallow tray of water.

• Cooler months: Maintain moisture, but allow the surface to breathe—avoid standing water if growth slows.

Humidity: 50–85% preferred. Adaptable to both terrarium and open-air conditions with good airflow.

Temperature: Grows best between 15–25°C. Tolerates brief dips to 10°C but is not frost-hardy.

Feeding: Traps small insects naturally. In indoor environments, feed monthly with dried bloodworms or fish flakes if no prey is available.

Dormancy: No true dormancy, but growth may slow in cooler seasons.

What’s Included

Plant: 1-2cm Small and possibly green in colour at this stage. With time and light, it will develop deep red hues and a tight, symmetrical rosette. Mature plants typically reach 4–6 cm across.

Grow Cup: 5 cm clear plastic cup with ventilated lid to maintain humidity. Top layer includes protective moss or sterile medium.

Medium: Low-nutrient, peat-based carnivorous plant mix—moisture-retentive and airy for healthy root growth.

Instructions: Step-by-step planting and care guide included.

Beginner Tips

• Keep soil wet and well-lit—this sundew thrives in consistent moisture and strong light.

• Only use mineral-free water—tap water can harm roots and reduce plant health.

• Bright light enhances colour—deeper red tones appear under intense lighting.