How to Grow Lance-leaf Sundew

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Lance-leaf Sundew

Drosera adelae

herb

Drosera adelae is a carnivorous plant native to Queensland, Australia, featuring narrow, lance-shaped leaves covered in sticky, red tentacle-like glandular hairs that trap and digest insects. This compact sundew grows in a rosette form and produces delicate pink or white flowers. It is a temperate to warm-growing species ideal for bog gardens and specialized plant collections.

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Example Lance-leaf Sundew timeline · Pittsburgh, PA (Zone 6b)

  1. Plant Lance-leaf Sundew

    Around Apr 17

    Near Pittsburgh's average last spring frost.

  2. Tend & protect

    Late spring–summer

    Watering, feeding, and pest-watch reminders.

  3. Harvest Lance-leaf Sundew

    Late summer into fall

    Before the first fall frost (≈ Nov 8)

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

Growing Conditions

☀️
Sun: Bright, indirect light; 4-6 hours of filtered sunlight daily; avoid harsh afternoon direct sun which can stress the plant
💧
Water: Keep soil constantly moist but not waterlogged; use distilled water or rainwater only, never tap water; maintain high humidity (50-70%); water from below via tray method to prevent fungal issues
📏
Spacing: 6 inches
📅
Days to maturity: 90-180 days to mature rosette; flowering occurs at 1-2 years
🌱
Planting depth: Minimal depth; plant shallow in moist substrate, keeping the crown at or slightly above soil surface

Soil

Type: Nutrient-poor, acidic, high-drainage sandy or peat-based mix with perlite or silica sand
pH: 4.5-5.5
Amendments:
Peat moss Long-fibered sphagnum moss Perlite Silica sand Avoid all fertilizers and tap water minerals

Growing Zones

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Thrives in zones 9b-11b; requires warm, humid conditions year-round

9b 10a 10b 11a 11b

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Growth Stages

1

Establishment

4-6 weeks

Young plantlet with 2-4 small lance-shaped leaves; sticky tentacles just beginning to form

Maintain high humidity and consistent moisture; place in humid propagation environment; avoid moving frequently; ensure excellent drainage to prevent rot

2

Vegetative Growth

8-12 weeks

Rosette develops 8-15 narrow leaves with fully functional red, glandular tentacles; plant reaches 2-3 inches diameter

Maintain constant moisture and humidity; provide bright, filtered light; allow tentacles to trap small insects naturally; no fertilizer needed

3

Dormancy Preparation

1-3 months (optional, depending on climate)

Growth slows; some leaf senescence may occur; plant prepares for cooler winter conditions if applicable

Continue regular watering; maintain humidity; provide cool rest period (55-65°F) for 2-3 months if winters are mild; reduce light slightly

4

Flowering

3-4 weeks per flower cycle

Thin flower stalks emerge from rosette center, producing small pink or white five-petaled flowers in clusters

Maintain all growing conditions; flowers are delicate; do not fertilize; allow self-pollination or hand-pollinate with soft brush; seed pods develop within 3-4 weeks

5

Seed Production & Renewal

Ongoing; seeds mature in 4-6 weeks

Seed pods mature and dry; rosette continues to produce new leaves; plant can be propagated from seed or by leaf pullings

Allow seeds to fully dry before collection; can propagate via seed sowing or leaf cuttings; remove spent flower stalks; continue normal care for next growth cycle

Companion Planting

Plan your garden →

Plant with:

Avoid planting near:

Fertilizer-loving plants High-nitrogen feeders Plants requiring alkaline soil Aggressive spreading plants Tap water-dependent plants

Common Pests

  • Reduce soil moisture slightly; improve air circulation; use sand top-layer; sticky traps; avoid overwatering; maintain good hygiene

  • Increase humidity to 60-70%; mist with distilled water; improve air circulation; isolate affected plants; rarely requires treatment due to carnivorous nature

  • and (Pythium, Phytophthora spp.)

    Ensure excellent drainage; use sterile substrate; avoid waterlogging; improve air circulation; remove affected leaves immediately; water only with distilled water

  • Maintain proper humidity levels; ensure good air movement; use fungicide-free treatments if necessary; typically not harmful to healthy plants

Uses

💊

Traditional respiratory support

Medicinal

Sundew species have been used in traditional European herbalism for cough remedies and bronchial support. Compounds in Drosera are studied for potential antispasmodic and expectorant properties. [source]

🦋

Carnivorous insect control

Wildlife

The sticky tentacles trap and digest small insects and gnats naturally, providing biological pest control in enclosed growing environments and terrariums. [source]

🏠

Specialized terrarium specimen

Household

Drosera adelae is prized by plant collectors and hobbyists as a fascinating living display plant in humid vivariums, terrariums, and bottle gardens that simulate its native Australian bog habitat. [source]

🎨

Botanical specimen and educational tool

Craft

The plant serves as an excellent educational specimen for studying plant adaptation, carnivory, and ecosystem niches in botanical gardens and educational institutions. [source]

🍳

No culinary use

Culinary

Drosera adelae is not consumed or used in cooking; it is purely ornamental and educational. The sticky secretions are mucilage, not edible compounds. [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 adelae is not harvested for food but rather cultivated for ornamental and scientific interest. Collect seeds by allowing flower pods to fully mature and dry on the plant; harvest seed pods when brown and papery. Propagate via seed sowing on wet sphagnum or by leaf pullings placed on moist substrate. Do not disturb the carnivorous tentacles as they are the plant's feeding mechanism.

Fun Facts

  • 🌱 Drosera adelae produces a luminescent, sticky mucilage on its tentacles that can glow under ultraviolet light, attracting insects that are then trapped and digested for nutrients.
  • 🌱 This species is endemic to the wet rainforests of northeastern Queensland and grows naturally only in specific micro-habitats with constant moisture and acidic peat soils.
  • 🌱 The tentacles are modified leaf hairs with digestive glands capable of absorbing nitrogen and phosphorus from trapped insects, allowing the plant to thrive in nutrient-poor environments where other plants cannot survive.

Gardening Terms

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