Round-leaved Sundew (Drosera rotundifolia)

Round-leaved Sundew

Drosera rotundifolia

Sticky dew-tipped leaves trap tiny insects, a quiet carnivorous beauty. Perennial carnivorous herb; common name: round-leaved sundew.

Full sun
3–4/week
Moderate
🌱

Plant Needs

☀️
Sunlight Requires full to partial bright sunlight to support mucilage production for insect trapping; avoid deep shade
💧
Watering Keep soil consistently saturated with distilled, rain, or reverse-osmosis water; avoid tap water which contains mineral salts harmful to carnivorous plants
🌡️
Temperature Hardy to freezing winter temperatures; prefers cool, humid growing conditions between 10–22°C in active growth season
🔍

Characteristics

  • Leaf: Round, spoon-shaped basal leaves covered in red glandular hairs that secrete sticky, insect-trapping mucilage
  • Flower: Small, five-petaled white blooms held on slender, upright stalks 10–20 cm above the rosette
  • Stem: Slender, wiry flowering stalks; no woody stem structure
🛠️

Care Guide

Watering

Maintain standing water 1–2 cm deep in the plant tray to keep soil fully saturated

Fertilization

No fertilizer required; nutrients are obtained from trapped insects. Do not apply any fertilizers, as they will burn the sensitive roots of this carnivorous plant

N/A:No supplemental fertilization needed; the plant obtains all necessary nutrients from captured small insects
Pruning
  • Trim spent flowering stalks after blooms fade to redirect energy to leaf rosette growth
  • Gently remove dead or yellowing basal leaves to prevent fungal growth in moist conditions
  • Avoid trimming healthy active leaves, as they are critical for insect trapping and nutrient uptake
⚠️

Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA confirms no toxic effects on cats

Humans: No reported toxic effects on humans

📖

Garden Uses & Culture

Culture: N/A

Usage: Ornamental carnivorous plant for bog gardens and closed terrariums; plays an ecological role in controlling small insect populations in wetland habitats