Hamilton's Sundew care

Light

Hamilton's Sundew is what florists mean by "bright spot, no direct sun" — close enough to a south or east window to feel the brightness, with a sheer curtain or a few feet of distance keeping the sun off the leaves. Needs at least 4–6 hours of bright light daily. A south- or east-facing windowsill is ideal; supplement with a full-spectrum grow light in low-light seasons. Direct midday sun can scorch the delicate glands. A phone lux-meter at the leaf surface should read 1,500-3,000 lux at noon.

Watering

Water hamilton's sundew keep tray with 1–2 cm of water at all times. 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 only distilled, reverse-osmosis, or collected rainwater — never tap water. Stand the pot in a tray and keep it consistently wet year-round. The tray method mimics the boggy, seasonally wet habitats of southwest Western Australia.

Soil and pot

Hamilton's Sundew grows best in peat-free carnivore mix or 1:1 perlite and sphagnum moss. Use a nutrient-free, low-mineral medium. A mix of pure long-fibre sphagnum moss and coarse perlite works well. Avoid standard potting compost, garden soil, or any mix containing fertiliser. 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

Hamilton's Sundew sits happiest at around 50–80% humidity and 10–28°C (50–82°F). Prefers moderate to high humidity. A humid terrarium or placing the pot on a tray of wet perlite helps maintain levels. Avoid hot, dry indoor heating directly blowing on the plant. If you keep the room above 10–28°C 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 hamilton's sundew sparingly. Do not fertilise. The plant feeds itself by trapping and digesting insects. In low-insect indoor settings, offer one or two small live or freeze-dried insects per leaf per month during the growing season. 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 hamilton's sundew in the Growli community. Each is annotated with the most common cause so you know where to start.

• Blackening and dying leaves — Almost always caused by tap water minerals or fertiliser residue. Switch immediately to distilled or rainwater and flush the pot thoroughly. Affected leaves will die back but healthy new growth should emerge.
• Loss of sticky dew on tentacles — Indicates insufficient light or excessively low humidity. Move to a brighter spot or supplement with a grow light. The glands produce mucilage in response to adequate photosynthesis.
• Crown rot — Caused by poor air circulation or standing water in the crown. Ensure good ventilation and keep water in the tray below the crown level. Remove any dead leaves promptly to prevent fungal spread.

Propagation

Leaf cuttings: lay a healthy leaf flat on moist sphagnum in a sealed, humid propagation tray under bright indirect light — tiny plantlets develop at the base within 4–8 weeks. Also by division of clumps or by seed sown on the surface of damp sphagnum under a humidity dome. 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

Hamilton's Sundew is pet-safe. Drosera (sundews) are listed as non-toxic by the ASPCA. The sticky mucilage is designed to catch insects, not mammals, and poses no known toxic risk to cats, dogs, or horses. 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.

Hamilton's Sundew deep-dive guides

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

• Hamilton's Sundew watering schedule
• Hamilton's Sundew light requirements
• Best soil mix for hamilton's sundew
• Hamilton's Sundew fertilizing guide
• When to repot hamilton's sundew
• How to propagate hamilton's sundew
• Hamilton's Sundew growth rate & size
• Hamilton's Sundew cold hardiness
• Hamilton's Sundew temperature & humidity
• Is hamilton's sundew toxic to cats & dogs?
• Is hamilton's sundew toxic to cats?
• Is hamilton's sundew toxic to dogs?

Featured in these plant shortlists

Hamilton's Sundew qualifies for 9 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 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.
• 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

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

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