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Plant care

Tiger Crow Orchid (Tiger Oncidium) care

Oncidium tigrinum

Also called Tiger Oncidium.

RHS H1cUSDA 10-11Pet-safeIndoor Pseudobulbs 8-12 cm tall

Watering rhythm

5-7days

When the bark mix is nearly dry, roughly every 5-7 days in growth

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Light

Bright indirect light (just back from a sunny window)

Soil

Open epiphytic orchid bark mix

Humidity

50-70%

Temp

12-24°C

Pet safety

Pet-safe

Mature size

Pseudobulbs 8-12 cm tall

Care at a glance

Light

Bright but filtered. Tiger Crow Orchid burns within days in unfiltered south-facing summer sun, and stops growing within months in deep shade. Wants strong filtered light; an east or lightly shaded south window. Leaves should be mid-green with a slight yellow tinge, never dark green (too little) or red-flushed (scorched). If you only have a south window, set the plant back 1.5 m or hang a sheer curtain — both knock the intensity down into the right range.

Watering

Watering tiger crow orchid: when the bark mix is nearly dry, roughly every 5-7 days in growth. The number that matters isn't the day of the week — it's how dry the top 2-3 cm of the pot feels. A finger in the soil tells you more than a watering app. After every watering, tip the saucer. Water heavily then let the medium approach dryness; pseudobulbs store water so it tolerates a brief dry spell. Reduce sharply in winter to a light drink every 2-3 weeks once growth finishes.

Soil and pot

Tiger Crow Orchid grows best in open epiphytic orchid bark mix. Medium-grade fir bark with perlite, charcoal and a little sphagnum, in a pot with copious drainage. Fast-draining and airy; it resents sitting wet and rots if the mix breaks down, so repot every 2 years. 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

Tiger Crow Orchid sits happiest at around 50-70% humidity and 12-24°C (54-75°F). Appreciates moderate-to-high humidity with steady airflow. A humidity tray or nearby humidifier helps in dry winter rooms; stagnant damp air invites bacterial rot, so keep air moving. If you keep the room above 12 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 tiger crow orchid sparingly. Feed weekly-weakly with a balanced orchid fertiliser at quarter to half strength during active growth, flushing with plain water monthly to clear salts. Cut feeding back through the cool, dry 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 tiger crow orchid in the Growli community. Each is annotated with the most common cause so you know where to start.

  • Pleated, accordion leaves — New growth that emerges crimped signals inconsistent watering or low humidity during leaf expansion. Keep moisture and humidity steady while the new fan develops.
  • No flower spike — Skipped blooming usually means too little light or no cool winter rest. Brighten the position and allow a drier, cooler 2-3 month rest to trigger spikes.
  • Black, mushy pseudobulbs — Bacterial or fungal rot from a soggy, broken-down mix. Cut out affected tissue with a sterile blade, repot into fresh bark, and improve airflow and drainage.
  • Scorched or red-flushed leaves — Direct midday sun burns the foliage. Move behind a sheer curtain; a slight bronze tinge is fine but brown patches mean too much light.

Propagation

Divide mature clumps at repotting, keeping at least 3-4 healthy pseudobulbs per division so each has reserves to reflower. Back-bulbs without leaves can sometimes be coaxed into new growth in damp sphagnum. 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

Tiger Crow Orchid is pet-safe. ASPCA-listed as non-toxic to cats and dogs. Orchids in the Orchidaceae family (the ASPCA individually clears Phalaenopsis and other orchids) carry no toxic principle; Oncidium is not on the ASPCA toxic list. Bark, fertiliser salts or pesticide residue can still cause mild stomach upset if chewed, so keep out of reach. 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.

Tiger Crow Orchid care — frequently asked questions

What is the common name for Oncidium tigrinum?

Oncidium tigrinum is most commonly called Tiger Crow Orchid, but it is also known as Tiger Oncidium. The names refer to the same species, so care instructions for Tiger Crow Orchid apply identically to anything sold as Tiger Oncidium.

How much light does tiger crow orchid need?

Tiger Crow Orchid grows best in bright indirect light (just back from a sunny window). Wants strong filtered light; an east or lightly shaded south window. Leaves should be mid-green with a slight yellow tinge, never dark green (too little) or red-flushed (scorched).

How often should I water tiger crow orchid?

Water tiger crow orchid when the bark mix is nearly dry, roughly every 5-7 days in growth. Water heavily then let the medium approach dryness; pseudobulbs store water so it tolerates a brief dry spell. Reduce sharply in winter to a light drink every 2-3 weeks once growth finishes. The finger-test (or lifting the pot to feel its weight) beats a fixed weekly calendar because pot size, light, and season all change how fast the soil dries.

Is tiger crow orchid toxic to cats and dogs?

Tiger Crow Orchid is pet-safe. ASPCA-listed as non-toxic to cats and dogs. Orchids in the Orchidaceae family (the ASPCA individually clears Phalaenopsis and other orchids) carry no toxic principle; Oncidium is not on the ASPCA toxic list. Bark, fertiliser salts or pesticide residue can still cause mild stomach upset if chewed, so keep out of reach.

What USDA hardiness zone does tiger crow orchid grow in?

Tiger Crow Orchid is rated for USDA zone 10-11 (indoor or greenhouse in most US homes) and RHS hardiness H1c. Outside that range, grow it as a container plant that overwinters indoors before the first hard frost.

Tiger Crow Orchid deep-dive guides

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

Featured in these plant shortlists

Tiger Crow Orchid qualifies for 11 curated Growli shortlists — each one filtered objectively from our structured plant-care library, so the selection is consistent and checkable:

Related guides

Tiger Crow Orchid is also commonly called Tiger Oncidium.