How to Grow Sundew (Other Drosera species)
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Sundew (Other Drosera species)
Drosera spp.
flowerSundews are carnivorous plants characterized by their glistening, sticky tentacles that trap and digest insects. They are found across multiple continents and display remarkable adaptation to nutrient-poor environments. These fascinating plants produce delicate flowers and require specialized growing conditions to thrive.
When should you plant Sundew (Other Drosera species) in your zone?
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Example Sundew (Other Drosera species) timeline · Pittsburgh, PA (Zone 6b)
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Plant Sundew (Other Drosera species)
Around Apr 17Near Pittsburgh's average last spring frost.
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Tend & protect
Late spring–summerWatering, feeding, and pest-watch reminders.
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First Sundew (Other Drosera species) blooms
Mid-to-late summerBefore the first fall frost (≈ Nov 8)
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Growing Conditions
Soil
Growing Zones
Find your zone →Varies by species; temperate species (D. rotundifolia, D. spatulata) thrive in zones 3-8, while tropical species (D. adelae, D. regia) prefer zones 9-11
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Get my Sundew (Other Drosera species) timeline →Growth Stages
Seed Germination
2-4 weeksMicroscopic seeds sprout into thread-like cotyledons; first tiny leaves emerge over 2-4 weeks
Keep seed medium constantly moist; maintain high humidity (80%+) under grow lights; ensure good air circulation to prevent mold
Seedling & Rosette Formation
4-12 weeksYoung plant develops its characteristic sticky tentacles (glandular hairs); rosette becomes recognizable with 4-8 leaves
Maintain pristine conditions with distilled water only; provide bright light; gradually acclimate to lower humidity if necessary; avoid handling leaves
Vegetative Growth
3-9 monthsPlant produces more leaves and expands rosette; dormancy may occur in temperate species during winter
Allow temperate species to enter cold dormancy (4-6 weeks at 40-50°F) to trigger flowering; tropical species grow year-round; minimize disturbance
Flowering
2-4 weeks per flower; blooming season varies by speciesDelicate flowers (pink, red, white, or purple depending on species) emerge on tall, slender inflorescences above the rosette
Maintain consistent moisture and humidity; flowers are self-pollinating but benefit from gentle hand-pollination; do not remove flowering stem
Seed Set & Dormancy/New Growth
2-8 weeks seed maturation; 6-12 weeks dormancy for temperate speciesTiny seeds develop in capsules; temperate species enter dormancy; tropical species continue growth and may produce new rosettes
Allow seeds to dry naturally on plant before collecting; provide winter chill for temperate species; reduce watering slightly for dormant types
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Increase humidity to 70%+; mist with distilled water; isolate affected plant; in severe cases, remove affected leaves; avoid chemical pesticides as they harm the plant
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Improve air circulation with small fan; reduce humidity slightly; remove affected leaves; ensure soil-to-water contact doesn't splash onto foliage; allow soil surface to dry between waterings
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Use extremely well-draining, sterile growing medium; water from below only; ensure pot has drainage; repot in fresh medium if roots show black mushy appearance
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Remove ants manually; use ant barriers on pot edges; do not use pesticides; ensure water tray is clean and refilled regularly
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Use only distilled, rainwater, or reverse-osmosis water; mineral buildup on leaves can clog glandular hairs; rinse affected leaves with distilled water
Uses
Traditional respiratory remedy
MedicinalSundew species, particularly D. rotundifolia, have been used in herbal medicine for centuries to treat coughs, asthma, and bronchitis. Modern research investigates compounds in sundew for anti-inflammatory and antimicrobial properties. [source]
Insect control & ecology
WildlifeSundews serve as natural pest controllers by trapping flies, gnats, and other small insects. They are integral to bog and wetland ecosystems and provide habitat and food for specialized insects. [source]
Botanical curiosity & education
CraftSundews are cultivated by enthusiasts and in botanical collections worldwide for their unusual beauty and fascinating carnivorous behavior. They are excellent teaching tools for understanding adaptation and plant physiology. [source]
Decorative houseplant
HouseholdSundews are grown indoors under controlled conditions for their striking glistening appearance and unique leaf structure. They make conversation-starting specimens for windowsills and terrarium displays. [source]
Herbal extract & tinctures
MedicinalDried sundew plants are used to prepare herbal extracts and tinctures in traditional European herbalism, particularly in Germany where D. rotundifolia extracts are commercially available for respiratory support. [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 grown for ornament and fascination, not harvest. Allow flowers to self-pollinate or hand-pollinate with small brush; collect ripe seed capsules when they turn brown and papery; dry seeds thoroughly before storage. Do not harvest or remove leaves—this stresses the plant. Admire the sticky tentacles as they trap and digest insects naturally.
Fun Facts
- 🌱 The genus name 'Drosera' comes from Greek 'drosos' meaning 'dew'—the glistening tentacles look like dewdrops but are actually sticky mucilage for catching prey.
- 🌱 Some Drosera species, like D. regia (King Sundew), can digest prey much larger than themselves, including small flies and mosquitoes, over several days.
- 🌱 Sundews produce their own 'digestive enzymes' similar to animal pancreatic enzymes, allowing them to break down insects and absorb nutrients in nutrient-poor soils where most plants cannot survive.
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