Phalaenopsis Orchid (Moth Orchid) Care: The Beginner's Orchid

Phalaenopsis—"moth orchid"—is the most popular orchid for a reason: it adapts beautifully to home conditions, blooms for months, and forgives minor mistakes. Native to Southeast Asian rainforests, it grows epiphytically on tree branches, which tells you exactly how to care for it.

Light

Bright, indirect light. East window is perfect. South or west needs sheer curtain. Leaves should be light green—dark green = too little light; yellowish = too much. No direct midday sun.

Temperature: The Bloom Trigger

Day: 70–85°F (21–29°C). Night: 60–65°F (16–18°C). A 10–15°F drop at night for 1–2 weeks in fall initiates flower spikes. Avoid drafts and sudden changes.

Water: The "Ice Cube" Myth

Water thoroughly when the potting mix is nearly dry—usually every 7–10 days. Use room-temperature water. Never use ice cubes—cold shocks tropical roots. Water early so foliage dries by night. Never let water sit in the crown (causes rot).

Humidity and Air Flow

50–70% humidity. Use a pebble tray or humidifier. Good air circulation prevents fungal issues—don't crowd plants.

Potting and Repotting

Use orchid bark mix (not soil). Repot every 1–2 years after blooming, when mix breaks down. Clear pots let you monitor roots—green = healthy; silver = dry; brown/mushy = rot.

After Blooming

When flowers fade, cut the spike above the 3rd node from the base—it may branch and rebloom. Or cut at the base for a clean rest. Continue care; new spikes emerge from the leaf axils.

Feeding

"Weakly, weekly": balanced orchid fertilizer at ¼ strength every watering. Flush with plain water monthly to prevent salt buildup.