How to Grow Great Sundew

iNaturalist

Great Sundew

Drosera anglica

flower

Drosera anglica is a carnivorous plant native to boggy wetlands across temperate regions of the Northern Hemisphere. It captures insects using sticky, glandular tentacles on its narrow leaves, supplementing its nutrient intake from poor soil. This delicate plant produces small white to pink flowers in summer.

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Example Great Sundew timeline · Pittsburgh, PA (Zone 6b)

  1. Plant Great Sundew

    Around Apr 17

    Near Pittsburgh's average last spring frost.

  2. Tend & protect

    Late spring–summer

    Watering, feeding, and pest-watch reminders.

  3. First Great Sundew blooms

    Around Jul 16

    ≈ 90 days after planting

Sample dates for Pittsburgh, PA. Sign up to get exact Great Sundew dates for your own zip code.

Growing Conditions

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Sun: Bright indirect light, 4-6 hours of sunlight daily; benefits from afternoon shade in hot climates
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Water: Requires constant moisture; keep soil wet but not waterlogged. Use distilled or rainwater only, never tap water. Mist regularly to maintain high humidity (60-80%)
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Spacing: 3-4 inches
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Days to maturity: 90-180
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Planting depth: Press seeds onto soil surface, do not cover; requires light for germination

Soil

Type: Nutrient-poor, acidic peat moss or sphagnum moss-based media
pH: 4.0-5.5
Amendments:
Peat moss Sphagnum moss Sand Perlite

Growing Zones

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Thrives in zones 2-8, prefers cool climates with high moisture

2a 2b 3a 3b 4a 4b 5a 5b 6a 6b 7a 7b 8a

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Growth Stages

1

Seedling

4-8 weeks

Tiny rosettes emerge with characteristic narrow, linear leaves covered in sticky tentacles

Keep extremely moist under bright light; use only distilled water; maintain high humidity in propagation chamber

2

Vegetative Growth

2-4 months

Plant develops larger rosette with 10-15 elongated leaves forming dense mats; tentacles become more prominent

Maintain consistent moisture and humidity; avoid fertilizers; distilled water only; provide bright light

3

Pre-flowering

2-3 weeks

Flower buds form on elongated stalks rising above the rosette; plant may slow leaf production

Continue regular watering; ensure adequate light; do not fertilize

4

Flowering

3-4 weeks

Delicate white to pale pink flowers bloom along the inflorescence; flowers are small but numerous

Pollinate flowers by hand if growing indoors; maintain moisture and light; allow flowers to mature

5

Seed Development & Dormancy

1-3 months

Flowers fade and seed pods develop; plant enters dormancy period requiring cool temperatures

Collect ripe seed pods before they open; allow dormancy period in cool (40-50°F) conditions for 2-3 months; reduce light slightly

Companion Planting

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Plant with:

Sarracenia (pitcher plants) Nepenthes (tropical pitcher plants) Pinguicula (butterworts) Sphagnum moss Sundews (other Drosera species)

Avoid planting near:

Tap water sources Fertilized plants High-nutrient soil amendments Competitive fast-growing plants

Common Pests

  • Increase humidity; mist regularly; isolate affected plants; use miticide if severe

  • Improve air circulation; reduce humidity slightly; avoid leaf wetting; remove infected tissue; use fungicide in severe cases

  • Ensure adequate air circulation; reduce humidity if excessive; remove surface mold; repot if necessary

Uses

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Natural Insect Control

Wildlife

Drosera anglica actively captures and digests small insects such as gnats, flies, and mosquitoes, providing natural pest control for indoor and outdoor gardens. This carnivorous mechanism supplements the plant's nutrient intake in nutrient-poor wetland soils. [source]

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Traditional Herbal Remedy

Medicinal

Drosera species have been used in traditional European herbalism to treat respiratory conditions, particularly cough and bronchitis. Some herbalists prepare tinctures or extracts, though scientific evidence is limited and it should not replace professional medical care. [source]

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Botanical Specimen & Education

Household

Drosera anglica serves as a fascinating living display of carnivorous plant adaptation and is valued by botanists and plant enthusiasts for educational purposes and terrarium cultivation. Its unique leaf structure and feeding mechanism make it an excellent teaching tool. [source]

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Terrarium & Vivarium Specimen

Craft

The delicate appearance and compact growth habit of Drosera anglica make it ideal for bog gardens, closed terrariums, and specialized plant collections. It can be featured in humid display cases that mimic its natural wetland habitat. [source]

This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.

Harvest Tips

Drosera anglica is primarily grown as an ornamental rather than harvested. Collect seeds in late summer after flowering; allow seed pods to dry completely before opening. Seeds can be stored in cool, dry conditions for several months. The plant itself can be divided at the base during dormancy period in late winter.

Fun Facts

  • 🌱 Drosera anglica can trap and digest insects that weigh several times more than the plant itself; each glandular tentacle acts independently to curl around prey
  • 🌱 The plant produces a sweet-smelling mucus on its tentacles that attracts insects; when insects touch the sticky substance, it triggers the tentacles to slowly curl inward, a process that can take 15-30 minutes
  • 🌱 In its natural habitat, Drosera anglica has been observed to dramatically reduce mosquito populations in northern bogs, and it has historically been valued by wetland-dwelling communities for this natural pest control benefit

Gardening Terms

New to gardening? Learn about terms used in this guide:

pH

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