Tiny Sundew (Dwarf sundew) care

Light

Most houseplants will scorch where tiny sundew thrives. Give it the windowsill you'd otherwise leave empty because everything else burned there. Provide 5–6 hours of direct or very bright light daily; this tiny species needs maximum light intensity to maintain compact form and active mucilage production — grown under LED, position the lamp close (15–20 cm) above the plant. A plant moved abruptly from low light to direct sun bleaches in 48 hours — always acclimatise over a week.

Watering

Aim for shallow water tray in winter–spring; dry rest in summer for tiny sundew, but treat that as a starting point rather than a rule. A south-facing summer windowsill will dry the pot twice as fast as a north-facing winter room. Lift the pot; if it feels noticeably lighter than it did wet, water it. During the active season keep the pot standing in 0.5–1 cm of distilled or collected rainwater at all times; from late spring allow the substrate to dry out fully for the 2–3 month summer dormancy — tap water is damaging even at low mineral levels.

Soil and pot

Tiny Sundew grows best in 40% peat, 60% perlite or coarse sand. A lean, fast-draining mix of peat and perlite (or washed sand) in a deep pot (at least 10 cm) gives the fine roots room to develop; the mix must be completely nutrient-free. 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

Tiny Sundew sits happiest at around 45–65% humidity and 5–25 °C (growing season) (41–77 °F (growing season)). Moderate ambient humidity is sufficient; a glass or acrylic cloche can raise local humidity and suits this miniature well, but must be ventilated daily to prevent fungal build-up around the tiny crown. If you keep the room above 5–25 °C (growing season) 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 tiny sundew sparingly. Offer 1–2 springtails or tiny fruit flies to the leaves every 3–4 weeks during active growth; no liquid or granular fertiliser of any kind. 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 tiny sundew in the Growli community. Each is annotated with the most common cause so you know where to start.

• Total loss during summer dormancy — The dormant stipule bud is easily rotted if the pot remains wet in warm weather; once the tiny leaves die back in spring move the pot away from the water tray, keep it warm and bone-dry until regrowth appears in autumn.
• Algae overgrowth smothering the rosette — The extremely small rosette can be buried by algal mats on the substrate surface; top-dress with a thin layer of washed sand and ensure good airflow to reduce algae, and remove any growth directly touching the crown with fine tweezers.

Propagation

Gemmae harvested from the crown in early to mid-winter and immediately scattered on the surface of moist peat–sand mix (the standard and most reliable method); seed germination is possible but very slow. 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

Tiny Sundew is mildly toxic to pets. Drosera species are not listed in the ASPCA Toxic and Non-Toxic Plant database as either toxic or non-toxic; they contain plumbagin (a 1,4-naphthoquinone) which may cause mild gastrointestinal irritation in cats and dogs. Classify as mildly-toxic and consult a vet if ingestion occurs. 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.

Tiny Sundew deep-dive guides

Every aspect of tiny sundew care, each with its own calibrated guide:

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

Featured in these plant shortlists

Tiny Sundew qualifies for 3 curated Growli shortlists — each one filtered objectively from our structured plant-care library, so the selection is consistent and checkable:

• Best small & tabletop houseplants — Compact houseplants that stay under about 40 cm — desk, shelf and windowsill plants that never outgrow a small space.
• Best houseplants for full sun — Houseplants that want direct sun — the species for a hot south or west-facing windowsill where shade-lovers scorch.
• Best houseplants for a cool room — Houseplants that tolerate cool conditions down to about 10°C — for an unheated spare room, hallway, porch or a home kept cool.
• Browse all 29 plant shortlists — pet-safe, low-light, drought-tolerant and more

Related guides

Tiny Sundew is also commonly called Tiny sundew or Dwarf sundew.

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• All 10153 plant care guides in the Growli library