Falconer's Sundew care

Light

Bright but filtered. Falconer's Sundew burns within days in unfiltered south-facing summer sun, and stops growing within months in deep shade. Demands maximum available light during the growing season — at least 6 hours of direct sun or equivalent intensity from grow LEDs. The broad laminae are adapted to capturing high tropical irradiance; insufficient light produces weak, poorly dewy leaves. If you only have a south window, set the plant back 1.5 m or hang a sheer curtain — both knock the intensity down into the right range.

Watering

Watering falconer's sundew: deep tray (growing season); very reduced (rest). The number that matters isn't the day of the week — it's how dry the top 2-3 cm of the pot feels. A finger in the soil tells you more than a watering app. After every watering, tip the saucer. Sit in 3–5 cm of pure water during active growth to replicate seasonal flooding of black-soil plains. Once leaves begin to die back in the dry season, remove from the tray and water only once per week with a small amount of pure water to keep the rhizome viable.

Soil and pot

Falconer's Sundew grows best in heavy peat or coir with fine sand — simulating black cracking clay loam. Unlike sandy-soil species, D. falconeri tolerates a slightly heavier mix: 2:1 peat to fine silica sand, kept very moist during the growing phase. Still completely nutrient-free — no compost or added minerals. A pot with a working drainage hole is non-negotiable for this species — even free-draining mix will turn soggy in a closed planter. If you love the look of a decorative pot without a hole, use it as a cachepot around an inner nursery pot you can lift out to water.

Humidity and temperature

Falconer's Sundew sits happiest at around 65–90% (growing); 40–60% (rest) humidity and 22–40 °C (growing); 18–30 °C (rest) (72–104 °F (growing); 64–86 °F (rest)). High humidity is essential during active growth; the broad leaves lose moisture quickly in dry air and mucilage production drops noticeably below 60% RH. A warm greenhouse or humidity tent during the growing season is ideal. If you keep the room above 22–40 °C (growing); 18–30 °C (rest) year-round and avoid placing the plant near a cold draught, a hot radiator, or an air-conditioning vent, you have already handled the two biggest indoor stressors.

Fertilising

Feed falconer's sundew sparingly. Feed with small insects placed on active leaves 3–6 times during the growing season only; the plant is particularly responsive to feeding and grows faster when well-fed. Skip fertiliser entirely on a stressed, recently-repotted, or actively wilting plant — fertiliser salts make damage worse, not better. Wait for a round of healthy new growth before resuming a feeding rhythm.

Common problems

Below are the issues we see most often on falconer's sundew in the Growli community. Each is annotated with the most common cause so you know where to start.

• Leaf collapse and flattening without dew — Broad leaves with poor mucilage production indicate heat stress, low humidity, or root problems. Check that soil is consistently moist during the growing season, raise humidity above 65%, and verify the growing temperature exceeds 25 °C.
• Rhizome failure during dry season — D. falconeri is particularly sensitive to cool-damp conditions in dormancy — the combination kills the rhizome quickly. Keep minimum temperatures at 18 °C and reduce water to the absolute minimum needed to prevent desiccation during rest.

Propagation

Primarily by rhizome division at the start of the growing season. Seed propagation is possible with very fresh seed on a moist, warm (30–35 °C) sphagnum or sand surface, but success rates vary and seedlings are extremely slow-growing for the first 1–2 years. Propagation is the cheapest, most satisfying way to expand a collection — and it doubles as insurance against losing a mature plant to an accident. Take a backup cutting once the parent is established and healthy.

Toxicity to pets

Falconer's Sundew is pet-safe. Drosera falconeri is not listed as toxic to cats or dogs by the ASPCA. No systemic toxins are documented in the genus; contact with the sticky mucilage may cause transient local irritation but poses no known health risk to pets. If you keep cats, dogs, or curious children in the house, weigh placement carefully — a high shelf or a hanging planter is enough for casual safety. For severe ingestion incidents, call your local vet and the ASPCA Animal Poison Control Center (in the US, 888-426-4435).

Pet-safety status is sourced from the ASPCA Toxic and Non-Toxic Plant List, which catalogues the most-asked-about plants for cats, dogs, and horses.

Falconer's Sundew deep-dive guides

Every aspect of falconer's sundew care, each with its own calibrated guide:

• Common falconer's sundew problems & fixes
• Falconer's Sundew watering schedule
• Falconer's Sundew light requirements
• Best soil mix for falconer's sundew
• Falconer's Sundew fertilizing guide
• When to repot falconer's sundew
• How to propagate falconer's sundew
• How to prune falconer's sundew
• What's eating my falconer's sundew?
• Falconer's Sundew growth rate & size
• Falconer's Sundew cold hardiness
• Falconer's Sundew temperature & humidity
• Is falconer's sundew toxic to cats & dogs?
• Is falconer's sundew toxic to cats?
• Is falconer's sundew toxic to dogs?
• All 46 Drosera varieties

Featured in these plant shortlists

Falconer's Sundew qualifies for 8 curated Growli shortlists — each one filtered objectively from our structured plant-care library, so the selection is consistent and checkable:

• Best pet-safe houseplants — Houseplants the ASPCA lists as non-toxic to cats and dogs — every one verified against the ASPCA toxic and non-toxic plant list.
• Best plants for a north-facing window — Houseplants for a north-facing window: bright, even, indirect light and no scorching direct sun. Each pick verified against its documented light needs.
• Best humidity-loving houseplants — Houseplants that thrive in a bathroom, kitchen, or by a humidifier — selected by documented humidity preference.
• Best pet-safe plants for bright light — Non-toxic to cats and dogs and happy in a bright, sunny spot — safe plants for your best-lit windowsill.
• Best small & tabletop houseplants — Compact houseplants that stay under about 40 cm — desk, shelf and windowsill plants that never outgrow a small space.
• Best cat-safe plants — Houseplants the ASPCA lists as non-toxic to cats (and dogs) — safe greenery for a home with a curious cat.
• Best dog-safe plants — Houseplants the ASPCA lists as non-toxic to dogs (and cats) — safe greenery for a home with a curious dog.
• Best small pet-safe plants — Compact, tabletop houseplants that are also ASPCA non-toxic to cats and dogs — safe greenery for a desk or shelf.
• Browse all 29 plant shortlists — pet-safe, low-light, drought-tolerant and more

Related guides

Falconer's Sundew is also commonly called Falconer's sundew.

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