Houseplants bring beauty and calm to any home, but one of the most popular indoor plants, the peace lily, can quickly lose its charm if the temperature isn't quite right. Experts have warned that a common household mistake could cause the elegant plant's lush green leaves to droop, a telltale sign of distress.

Native to the warm, humid rainforests of Central and South America, peace lilies thrive in conditions that mimic their tropical origins. According to plant specialists, the ideal home temperature for these plants is around 21C. While they can tolerate slight drops overnight, temperatures should never fall below 15C.

"Peace lilies like consistency," experts from Bloomscape said.

"Sudden changes in temperature or draughts can shock the plant, causing its leaves to wilt or droop. This is often mistaken for a watering issue, but it can be just as much about the room environment."

The plant can usually recover quickly once the issue is addressed, but persistent fluctuations, such as those caused by cold windows, heating vents, or air conditioning, can make it harder for the peace lily to bounce back.

Drooping is one of the most common symptoms that something is wrong, and temperature is just one potential culprit. Other causes include overwatering, underwatering, too much direct sunlight, or low humidity levels.

Pest problems such as aphids or spider mites can also stress the plant, leading to similar signs.

To diagnose the cause, experts suggest checking the soil first.

If it's soggy, overwatering may be the problem. If it's dry, the plant is likely thirsty. Peace lilies prefer evenly moist soil but never waterlogged conditions.

If temperature is to blame, moving the plant away from draughty windows, radiators, or air conditioners usually helps. Maintaining a stable, warm environment and misting the leaves occasionally can also keep humidity at the right level.

By keeping an eye on these simple conditions, gardeners can prevent the peace lily's graceful leaves from drooping and enjoy its white blooms all year round.