An orchid on a windowsill
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The Reason Your Orchid Isn't Blooming (And How To Fix It)
By BRANDY EAKLOR
If your orchid isn't blooming, it might be because its environment doesn't closely mimic its natural habitat. Fortunately, a few simple changes can help it
blossom again.
Orchids, especially the popular moth orchid (Phalaenopsis), thrive when daytime temperatures are between 70 and 80 degrees Fahrenheit, with a nighttime drop of about 10-15 degrees.
If you can't adjust your home's temperature, consider moving the orchid to a cooler room during the night or bringing it outside during the day and back in at night during summer.
Rapid temperature changes can also hinder flowering, so keep the plant away from radiators and air conditioning units, and use lukewarm or room-temperature water
for watering.
If your orchid's leaves are yellowing or the plant feels warm to the touch, it may be too hot. Conversely, drooping, curling, or blackening leaves indicate it might be too cold.