How To Take Care

Light

Unlike many plants, peace lilies will thrive in low-light areas. You can place them 5-8 feet from a window and they'll do just fine. If you place them in direct sunlight for long periods of time, the leaves will yellow, die, and fall off.

Temperature

Peace lilies should be grown in temperatures ranging from 68-80°F. Don't place them in a drafty area as they do not like it.

They don't tolerate extreme cold well, so if your temperatures drop below 45°F, they will most likely die.

Water

Try to keep your soil evenly moist but not soggy. Standing water will quickly kill the root system. In fact, the most common reason that people kill their peace lilies is because they over-water them. Watering no more than once a week is plenty for this plant. Water even less during winter as the plant won't be producing blooms.

You can tell your spathiphyllum needs water when the leaves slightly droop. Don't wait too long though — severely drooping leaves means the plant has been dry long enough to damage the root system. The bottom leaves may turn yellow and fall off.

Note: the chlorine in tap water can damage your peace lily. If possible, filtered water or leave your tap water out for 24+ hours so the chlorine breaks down.

Soil

A standard well-draining, nutrient-rich potting soil will work well for peace lilies. If you find it holds too much moisture, add some perlite or coarse sand to the mixture.

If you want to make your own potting mix, add equal parts garden soil, coarse sand, and perlite. The soil should be well-aerated and in a pot with a drainage hole to prevent root rot.

Fertilizer

You can get away without fertilizing your peace lily. But if you do decide to feed it, don't go overboard. Use a well-balanced 20-20-20- fertilizer but dilute it to 25% of the recommended dose. If you notice the tips of the leaves and blooms turning brown, you've probably over-fertilized.

Fertilize only in spring and summer — it doesn't grow enough in fall and winter to justify fertilization.

Repotting

Peace lilies like to be somewhat root-bound. Re-potting is only needed about every other year. When re-potting, place in a pot that is a couple of inches larger than the original pot so that the roots will still be slightly together.

Here are some signs your plant is too root-bound and needs re-potting:

Your plant is absorbing all of the water you pour on it within only a couple of days
There are crowded roots showing through the bottom of the pot
The stalks are crowding the pot.