How to Grow Sundew
Sundew
Drosera spp.
flowerSundews are carnivorous plants characterized by their bright, sticky tentacle-like glandular hairs that trap and digest insects. These delicate plants produce small but attractive flowers and are prized by plant enthusiasts for their unique feeding mechanism and ethereal beauty. They thrive in wet, nutrient-poor conditions where they supplement their nitrogen intake through insect digestion.
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Growing Conditions
Soil
Growing Zones
Find your zone →Varies by species; temperate species (D. anglica, D. rotundifolia) thrive in zones 4-7; tropical species (D. aliciae, D. adelae) prefer zones 9-11
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Growth Stages
Seed Germination
2-4 weeksTiny seeds sit on moist substrate surface. Initial root development and cotyledon emergence occurs.
Maintain high humidity (60-80%), ensure constant moisture, keep soil temperature 65-75°F, provide bright indirect light, avoid fungal issues with good air circulation
Seedling & Early Rosette
4-8 weeksSmall leaves develop with rudimentary sticky glands visible. Plant forms a tight rosette close to substrate surface.
Continue high humidity, very careful watering (never let dry), use distilled water only, provide bright light, thin seedlings if overcrowded to prevent damping off
Mature Vegetative Rosette
3-6 months or longerFull rosette formed with characteristic bright red or green leaves covered in abundant glistening sticky tentacles. Plant actively traps insects.
Maintain wet conditions, ensure excellent light, support dormancy period if applicable (temperate species need winter rest), do not fertilize, allow natural insect capture
Flowering
2-4 weeks of bloomingDelicate flower stalks emerge from center of rosette bearing small pink, white, or red flowers in a spiral inflorescence.
Maintain consistent moisture and light, flowering diverts energy so be prepared for slower growth, allow pollination if desired, self-fertile in most species
Seed Production & Dormancy
Variable; dormancy 2-3 months for temperate speciesAfter flowering, seeds develop in small capsules. Temperate species may enter winter dormancy; tropical species continue growth.
Collect seeds if desired (they are tiny), allow dormancy period for temperate types (cool, reduced watering for 2-3 months), continue humidity for tropical types, reduce light slightly during dormancy
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Maintain excellent air circulation, avoid overwatering, use sterile substrate, allow surface to dry slightly between waterings if possible, yellow sticky traps
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and
Ensure good air circulation with small fan, reduce humidity slightly, water from below only, remove affected leaves, use sterile substrate and tools
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Increase humidity, mist leaves gently, improve air circulation, quarantine affected plants, neem oil as last resort (test first)
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Spray gently with distilled water, insecticidal soap (organic, test first), or allow plant's carnivorous mechanism to trap them; isolate severely infested plants
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Manual removal with soft brush, improve air circulation, neem oil spray if severe (use sparingly on delicate plants), quarantine
Uses
Traditional Respiratory Support
MedicinalSundew species, particularly Drosera rotundifolia (Round-leaved Sundew), have been used in traditional European herbal medicine for cough and bronchitis relief. The plant contains compounds that may have antispasmodic properties, and dried sundew preparations were historically used in homeopathic remedies. [source]
Natural Insect Control
HouseholdSundews function as living biological pest control, passively trapping and digesting flies, gnats, and other small insects. Placing a healthy sundew indoors naturally reduces populations of nuisance insects without chemicals. [source]
Pollinator and Insect Habitat
WildlifeThe delicate flowers attract small pollinators including flies and tiny bees, supporting local insect biodiversity. The sticky leaves also provide a food source for specialized insects in bog ecosystems. [source]
Botanical Observation & Education
CraftSundews are living demonstrations of plant adaptation and carnivory, making them valuable for educational purposes and scientific observation. Watching insect capture and digestion provides insight into evolutionary plant strategies. [source]
Historical Dye and Food Additive
CulinaryHistorically, sundew plants were used to create dyes and as a minor ingredient in some fermented beverages in European folk traditions. Modern culinary use is rare and not recommended due to the plant's delicate nature and minimal nutritional value. [source]
This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.
Harvest Tips
Sundews are not typically harvested for consumption or material use. Allow the plant to naturally trap and digest insects—this is their primary nutrition source in low-nutrient soils. Collect seeds after flowering by carefully harvesting seed capsules when they brown and dry; seeds are viable for several years when stored dry and cool. Remove dead leaves and flower stalks to maintain plant health and aesthetic.
Fun Facts
- 🌱 Sundew leaves produce copious amounts of sticky mucilage that glistens in sunlight, resembling dewdrops—hence the common name. The 'dew' is actually a digestive secretion that can break down insect proteins into usable nitrogen.
- 🌱 Different sundew species employ varied hunting strategies: some are active flypaper traps with minimal movement, while others (like D. adelae) have mobile tentacles that can curl around prey to maximize contact with digestive enzymes.
- 🌱 Sundews have been used in botanical art and Victorian plant collecting for over 200 years, with some Victorian naturalists dedicating entire collections to rare Drosera species from across the globe.
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