Orchid (phalaenopsis) care

Light

Orchid thrives in bright indirect light — the conditions just back from a sunny window, with plenty of ambient brightness but rarely any direct rays on the leaves themselves. Bright indirect light. An east-facing window is ideal; a sheer-curtained south or west window works. Insufficient light is the most common reason an orchid stops reblooming. If you are not sure whether your spot is bright enough, a free phone lux-meter app at midday is the quickest way to check; aim for 800-1,500 lux.

Watering

Water orchid once a week — soak the medium thoroughly, then drain. The actual day count varies with pot size, light level, and the season — the finger test (or, better, lifting the pot to feel its weight) is more reliable than a calendar. Empty any drainage saucer after watering so the pot is never sitting in water. Run tepid water through the pot for 30 seconds and let every drop drain. Roots should turn green when wet and silver when dry. Never let water sit at the crown.

Soil and pot

Orchid grows best in orchid bark mix (not soil). Coarse fir bark with a little sphagnum moss. Repot every 1-2 years as the bark breaks down — old soggy bark is the leading cause of root rot. 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

Orchid sits happiest at around 50-70% humidity and 18-27°C (65-80°F). Higher humidity helps; a humidifier or pebble tray closes the gap in winter. 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 orchid sparingly. Quarter-strength orchid feed weekly while in active growth ("weakly weekly"). Skip during winter rest. 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 orchid in the Growli community. Each is annotated with the most common cause so you know where to start.

• No re-bloom — Insufficient light, or no 10°C night-day temperature drop to trigger a new spike.
• Yellow lower leaves — Natural turnover; usually nothing to worry about.
• Mushy roots — Bark medium has broken down — repot in fresh coarse bark.
• Wrinkled leaves — Either underwatering or, more often, root loss preventing water uptake.

Companion plants

Orchid pairs well with Anthurium, Bromeliad, and African violet. These are species with similar light and water needs, so you can group them in the same room or on the same shelf and water as a batch.

Propagation

Keikis (baby plants) occasionally form on flower spikes; pot them up once they have several roots. Division is difficult for hobbyists. 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

Orchid is pet-safe. ASPCA lists Phalaenopsis as non-toxic to cats and dogs. A safe flowering option for pet households. 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.

Orchid deep-dive guides

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

• Orchid watering schedule
• Orchid light requirements
• Best soil mix for orchid
• Orchid fertilizing guide
• When to repot orchid
• How to propagate orchid
• Orchid growth rate & size
• Orchid cold hardiness
• Orchid temperature & humidity
• Is orchid toxic to cats & dogs?
• Getting orchid to bloom

Related guides

Orchid is also commonly called moth orchid or phalaenopsis.

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• Hoya care — light, water and common problems
• All 200 plant care guides in the Growli library