Drosera binata 'Multifida Extrema' (Multifida Extrema Sundew) care

Light

Drosera binata 'Multifida Extrema' needs sun on the leaves, not just bright ambient room light. Wants bright light; several hours of direct sun or a strong grow light maximises forking, dew and reddish colour. Low light produces fewer, weaker, greener leaves. A south or west-facing windowsill in the northern hemisphere is the default; anywhere else, expect the plant to stretch and pale out within a season.

Watering

Water drosera binata 'multifida extrema' keep media constantly wet; stand in 1-2 cm of water via the tray method in growth, drier in winter. The actual day count varies with pot size, light, and season — the finger test (or lifting the pot to feel its weight) is more reliable than a fixed calendar. Empty any drainage saucer afterwards so the pot isn't sitting in water. Use rain, distilled or RO water only. Keep permanently moist during the growing season; reduce watering during a cool winter rest. Never use tap or mineral water.

Soil and pot

Drosera binata 'Multifida Extrema' grows best in nutrient-free carnivorous mix. 1:1 sphagnum peat and washed silica sand or perlite. Standard composts and fertilisers will kill it; only mineral-free media is safe. 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

Drosera binata 'Multifida Extrema' sits happiest at around 40-60% humidity and 18-28°C growth; cool winter rest near 5-15°C (65-82°F growth; cool winter rest near 41-59°F). Grows well in average household humidity as long as the roots stay wet. Higher humidity increases dew, but a terrarium is not required. If you keep the room above 18 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 drosera binata 'multifida extrema' sparingly. Never feed the roots. The many forked tips catch their own insects; indoors a leaf can be fed a small rehydrated insect occasionally. Keep all fertiliser out of the media. 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 drosera binata 'multifida extrema' in the Growli community. Each is annotated with the most common cause so you know where to start.

• Leaves not forking fully — Insufficient light limits the dramatic branching. Give strong direct sun or intense grow light to develop the many-forked 'Extrema' form.
• Loss of dew — Low light, low humidity or disturbance. Brighten the light and keep roots wet; dew usually returns quickly.
• Winter dieback alarm — Many forms die back or slow in winter; this is a natural rest, not death. Keep cool and barely moist, then resume normal care in spring.
• Spreading by roots — It travels via underground roots into neighbouring pots. Pot generously and divide periodically to keep it contained.

Propagation

Easy from root cuttings laid on damp media (its strongest method), leaf cuttings on wet sphagnum, division of spreading clumps, or seed. Root cuttings readily produce new plantlets under bright light. 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

Drosera binata 'Multifida Extrema' is mildly toxic to pets. Drosera is not individually listed in the ASPCA database; other carnivorous plants such as the Venus Fly Trap and California Pitcher Plant are ASPCA non-toxic and sundews are generally considered low-risk. Treat as uncertain: ingestion may cause mild gastrointestinal upset and the sticky mucilage can irritate. Verify with a vet if a pet eats any. 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.

Drosera binata 'Multifida Extrema' deep-dive guides

Every aspect of drosera binata 'multifida extrema' care, each with its own calibrated guide:

• Drosera binata 'Multifida Extrema' watering schedule
• Drosera binata 'Multifida Extrema' light requirements
• Best soil mix for drosera binata 'multifida extrema'
• Drosera binata 'Multifida Extrema' fertilizing guide
• When to repot drosera binata 'multifida extrema'
• How to propagate drosera binata 'multifida extrema'
• Drosera binata 'Multifida Extrema' growth rate & size
• Drosera binata 'Multifida Extrema' cold hardiness
• Drosera binata 'Multifida Extrema' temperature & humidity
• Is drosera binata 'multifida extrema' toxic to cats & dogs?
• Is drosera binata 'multifida extrema' toxic to cats?
• Is drosera binata 'multifida extrema' toxic to dogs?

Featured in these plant shortlists

Drosera binata 'Multifida Extrema' 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 fast-growing houseplants — Houseplants documented as fast or vigorous growers — quick to fill a pot, cover a pole or trail down a shelf.
• Browse all 29 plant shortlists — pet-safe, low-light, drought-tolerant and more

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