Plant Library

Moth Orchid Care Guide

Phalaenopsis

By the Plantshop.com Editorial Team · Updated · How we research · Report an error

Phalaenopsis is the orchid sold in supermarkets and gift shops. Blooms last for weeks and it can rebloom each year with a cool autumn.

Photo of a moth orchid plant (Phalaenopsis)
Photo: Wildfeuer / CC BY-SA 3.0, Wikimedia Commons. Source · License

Plant profile

Light
Medium to bright indirect light
Water
About weekly; let bark dry slightly
Humidity
Average to high
Pets
Non-toxic to cats and dogs (ASPCA) [ASPCA]
Difficulty
Moderate
Size
1-2 ft with spike
Growth
Slow

Light

Medium to bright indirect light. Rotate the pot every few weeks so growth stays even.

Water

About weekly; let bark dry slightly. Always use a pot with drainage holes and empty the saucer after watering. Plants use far less water in winter.

Humidity and temperature

Humidity: average to high. Most houseplants prefer 60-80°F (16-27°C) and dislike cold drafts and heating vents.

Soil and feeding

Use a well-draining potting mix with bark or perlite for air. Feed lightly in spring and summer with a balanced houseplant fertilizer at half strength; skip feeding in winter.

Our tip

Pot in bark, not soil, and never let roots sit in water.

Common problems

Pets

Non-toxic to cats and dogs (ASPCA), according to the ASPCA plant list. Check any plant in our Pet-Safe Plant Checker.

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Sources

  1. ASPCA Animal Poison Control: Toxic and Non-Toxic Plants
  2. NC State Extension Plant Toolbox: Phalaenopsis
  3. RHS: Houseplants, how to grow and care