The deep green, glossy leaves of the peace lily can discolor when the plant has outgrown its pot and can no longer obtain enough nutrients or water from the surrounding compost, Curtis says.

It's unsettling to see black leaves on your peace lily but the truth is, they're rarely ever random-- they're more like signals. Sometimes, blackening is simply part of the natural aging process.

Emerald green arborvitae (Thuja occidentalis 'Smaragd') is known for its bright emerald green foliage that retains its color year-round. It's ideal for privacy screens because of its pyramid ...

However, your plant shouldn’t be black as it ages. If this is the case, take a look at what else might be wrong or find ways to prune your peace lily, removing the older leaves.

can experience a decline in health. The most common causes of black leaves on a peace lily include improper watering, plant experts share. But there are many other possible causes to consider.