Plant care guides

Moth orchid care guide Phalaenopsis spp.

How to grow and care for Moth orchid at home. Best-selling indoor orchid worldwide.

Light
Medium / indirect light
Watering (summer)
Every 7 to 10 days
Watering (winter)
Every 10 to 14 days
Pet safety
Pet-safe (non-toxic)
Difficulty
Easy
Scientific name
Phalaenopsis spp.
Origin
SE Asia
Humidity
50-70%

Fun fact

A single bloom spike can flower for three months; the genus name comes from the Greek phalaina, ‘moth’, for how the flowers look in flight.

Moth orchid (Phalaenopsis spp.) — a healthy specimen photographed indoors

When and how much water

Water Moth orchid when the bark mix looks and feels dry, and any aerial roots look silvery rather than green. In summer that’s typically every 7 to 10 days; in winter slow down to every 10 to 14 days. Use room-temperature water and let any excess drain — never leave the pot sitting in standing water.

  • Every 10 to 14 days
  • Every 7 to 10 days

The real schedule depends on three things the calendar can’t see: the actual light at the plant, the pot’s size and material (terracotta dries faster than glazed ceramic), and your local humidity. Botanicaly’s app retunes the schedule from those signals on every reminder.

How bright a spot it needs

Moth orchid thrives in bright, indirect light. Direct midday sun can scorch the leaves. The ideal lux range is 2,000 - 10,000 lux. In practical terms, place it 1-2 meters back from an east or west window, or behind a sheer curtain on a south window.

Feeding

Feed Moth orchid every 21 days while it’s actively growing. Use a fertilizer made for orchids, at half the strength on the label, and only on bark that’s already damp. When growth pauses, skip the fertilizer and let it rest.

Temperature & humidity

Moth orchid is comfortable between 18 and 29 °C. Below 15 °C the leaves start taking damage, so keep it clear of cold drafts and unheated rooms.

It does best at 50–70% humidity. It doesn’t need misting.

Common problems

Most Moth orchid problems trace back to watering — here’s how to read the leaves.

Signs of overwatering

Watch for

  • Mushy brown roots
  • Yellowing lower leaves
  • Root rot
  • Limp soft leaves

Let the soil dry further between waterings and make sure the pot drains freely — soggy roots are the usual cause.

Signs of underwatering

Watch for

  • Wrinkled leaves
  • Silvery shriveled roots
  • Bud blast
  • Drooping leaves

Water a little more often and don’t let the soil go bone-dry for long.

Toxic to pets?

NoPet-safe.

Moth orchid is non-toxic to cats and dogs. Safe to keep in a home with pets.

Browse all pet-safe houseplants →

Pet-safety information for catalog plants uses ASPCA reference data where available. It is reference information, not veterinary advice.

Propagation

Grow more Moth orchid from a cutting.

  1. Wait until an offset is at least one-third the size of the mother plant.
  2. Water the parent plant the day before to ease root removal.
  3. Slide the plant out of its pot and gently brush away soil to find where the offset connects to the mother root.
How to propagate Moth orchid, step by step →

Common questions

How often should I water a Moth orchid?

Water your Moth orchid (Phalaenopsis spp.) when the bark mix looks and feels dry, and any aerial roots look silvery rather than green. In summer, that’s typically every 7 to 10 days; in winter, slow down to every 10 to 14 days. Botanicaly’s app tunes this further based on your home’s actual light, pot size, and local weather.

How much light does a Moth orchid need?

Moth orchid thrives in bright, indirect light. Direct midday sun can scorch the leaves. The ideal lux range is 2,000 - 10,000 lux. In practical terms, place it 1-2 meters back from an east or west window, or behind a sheer curtain on a south window.

Is Moth orchid safe for cats and dogs?

Moth orchid is non-toxic to cats and dogs. Safe to keep in a home with pets.

Why are my Moth orchid’s leaves turning yellow or drooping?

On a Moth orchid, yellowing and soft growth usually mean overwatering — watch for mushy brown roots, yellowing lower leaves, or root rot. Let the soil dry further between waterings and check drainage. If you see wrinkled leaves, silvery shriveled roots, or bud blast instead, it’s likely thirsty — water a little more often. Botanicaly’s Plant Doctor can help assess visible signs from a photo and suggest possible causes.

Botanicaly

A schedule that reads your room.

You don’t need to work out your Moth orchid’s care from scratch each time. Botanicaly uses its saved setup and care history for the next step. Identifying is free. Pro adds Plant Doctor and Weather-smart care.

Example from the Botanicaly app · Moth orchid
Today · Moth orchid Care updated

Still wet

Check again in 2 days

Botanicaly updates the next step when the soil isn’t dry.

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This guide follows established plant-care guidance and official ASPCA pet-safety references. How we verify our plant data → · Last reviewed: 2026-08-07

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