Colima Butterwort care

Light

Colima Butterwort 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. Prefers bright indirect light or 12–14 hours under moderate-intensity grow lights. In its Colima habitat it grows on shaded limestone outcrops and cliff faces with dappled light. Direct afternoon sun causes leaf bleaching; gentle morning sun is tolerated. A phone lux-meter at the leaf surface should read 1,500-3,000 lux at noon.

Watering

Water colima butterwort water every 5–7 days; allow the surface to slightly dry between waterings. 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 rainwater, distilled, or reverse-osmosis water. Being a tropical Mexican species without a full dry dormancy, P. colimensis should not be allowed to fully dry out, but it equally dislikes waterlogged roots. Light tray watering or careful top-watering with good drainage works well.

Soil and pot

Colima Butterwort grows best in lean mineral mix: 2:1 perlite to peat or pure pumice/perlite blend. Grows on limestone and volcanic substrates in the wild; prefers near-neutral to slightly alkaline pH (6–7.5). A mix of perlite, coarse sand, and a small amount of peat works well. Avoid nutrient-rich composts entirely. 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

Colima Butterwort sits happiest at around 50–80% humidity and 12–30°C (54–86°F). Prefers moderate to high humidity; in Colima it grows in seasonally humid tropical conditions. Average indoor humidity of 50% is workable; a pebble humidity tray helps. Unlike many tropical plants, good air circulation is important to avoid fungal issues. If you keep the room above 12–30°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 colima butterwort sparingly. Nutrient acquisition is through insect capture. Supplement indoors by placing tiny insects (fruit flies, fungus gnats) on leaves, or mist leaves (not substrate) with 1/10 strength orchid fertiliser every 3–4 weeks during the growing season. No soil fertiliser. 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 colima butterwort in the Growli community. Each is annotated with the most common cause so you know where to start.

• Leaf curl and edge browning — Usually caused by low humidity or exposure to air conditioning drafts. Raise ambient humidity above 50% and keep the plant away from heating or cooling vents. Damaged leaves do not recover; healthy new growth appears within weeks of improved conditions.
• Root rot from overwatering — Unlike temperate species that tolerate tray waterlogging, P. colimensis prefers its roots moist but not saturated. Ensure excellent drainage, reduce watering frequency, and never leave the pot in a deep tray of standing water for extended periods.
• Lack of flowering — This species is free-flowering when conditions are right. Failure to flower is usually caused by insufficient light intensity. Increase light to bright indirect levels or add a grow light to trigger blooming.

Propagation

Leaf pullings are the standard method: remove a mature leaf cleanly at the base, place on moist perlite or live sphagnum in a humid propagator, and plantlets develop in 4–10 weeks. Seed can be surface-sown on moist perlite at 20–25°C. Division of multiple-rosette clumps is also straightforward. 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

Colima Butterwort is pet-safe. Pinguicula is listed by ASPCA as non-toxic to cats and dogs. The enzymatic mucilage on leaves is effective against small insects but poses no toxicity risk to mammals. 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.

Colima Butterwort deep-dive guides

Every aspect of colima butterwort care, each with its own calibrated guide:

• Colima Butterwort watering schedule
• Colima Butterwort light requirements
• Best soil mix for colima butterwort
• Colima Butterwort fertilizing guide
• When to repot colima butterwort
• How to propagate colima butterwort
• Colima Butterwort growth rate & size
• Colima Butterwort cold hardiness
• Colima Butterwort temperature & humidity
• Is colima butterwort toxic to cats & dogs?
• Is colima butterwort toxic to cats?
• Is colima butterwort toxic to dogs?

Featured in these plant shortlists

Colima Butterwort qualifies for 10 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 succulents for beginners — The easiest succulents and cacti to keep alive — selected by documented growth habit, each with the light and watering it actually wants.
• Best pet-safe succulents — Succulents the ASPCA lists as non-toxic to cats and dogs — low-water greenery that is also safe around a curious pet.
• 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

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Colima Butterwort is also commonly called Colima butterwort.

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