Madagascar Sundew (Drosera madagascariensis)

Madagascar Sundew

Drosera madagascariensis

It traps insects with glistening dew, a tiny carnivorous wonder. Carnivorous perennial herb; common name: Madagascar Sundew.

Full sun
2–3/week
Moderate
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Plant Needs

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Sunlight Requires full sun to bright indirect light to produce functional sticky mucilage traps; avoid prolonged shade
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Watering Use only distilled, rain, or reverse-osmosis water to prevent mineral buildup; keep soil consistently moist at all times
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Temperature Thrives in warm temperate to tropical conditions; avoid temperatures below 10°C to prevent leaf damage
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Characteristics

  • Leaf: Linear to spatulate basal leaves covered in red glandular hairs that secrete sticky insect-trapping mucilage
  • Flower: Small pale pink to white five-petaled blooms on slender upright stalks above the rosette
  • Stem: Short, compact central stem supporting the basal leaf rosette
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Care Guide

Watering

Maintain constant soil moisture using tray watering to boost humidity

Fertilization

No supplemental fertilization needed; obtains nutrients from trapped insects. Do not apply traditional fertilizers, as they will damage the sensitive root system

Diluted dechlorinated aquarium water:Dilute 1:2 with distilled water; apply sparingly to avoid overloading the nutrient-poor soil
Pruning
  • Trim spent flower stalks after blooming to redirect energy to trap production
  • Remove dead or brown leaves to maintain a tidy rosette appearance
  • Thin overcrowded offshoots during spring repotting to improve airflow
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA-confirmed non-toxic to cats; no reported toxic reactions

Humans: Non-toxic to humans; no known adverse effects from handling or accidental ingestion

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Garden Uses & Culture

Culture: N/A

Usage: Carnivorous ornamental plant for terrariums, bog gardens, and windowsill displays