Why Won't My Phalaenopsis Rebloom? Moss, Light, and Care Tips

Question:

My fiancé bought this Phalaenopsis last Mother's Day. It was blooming; after flowers faded I cut the spike. Since then, no rebloom—four new leaves and plenty of aerial roots. I checked for root rot (none visible). It's planted in what looks like moss. Any ideas why it won't flower again?

Answer:

Hello Jesykah,

Many reasons can prevent reblooming, but the most common is that the plant isn't happy with its growing conditions. Phalaenopsis need:

• Bright indirect sunlight
• Temperatures 60–85°F
• Humidity above 50%
• Light air movement
• Water when media is barely moist
• Balanced orchid fertilizer occasionally

The moss may be the culprit—it stays wet long after the surface looks dry, potentially causing hidden root rot. If you unpot and remove the moss, you might find mushy roots.

Unfortunately, it's probably too late for rebloom this year. Over the next year, provide the conditions above for better results.

Jim Kawasaki
San Jose, CA