Peace lilies (Spathiphyllum) are tropical plants that are known for their beautiful, delicate white flowers and dark green leaves. They are relatively low-maintenance plants, but to keep them healthy and thriving, it's important to fertilize them regularly.
There are a few options for fertilizing peace lilies. One is to use a balanced liquid fertilizer, such as a 20-20-20 formula, which contains equal amounts of nitrogen, phosphorus, and potassium. You can apply this type of fertilizer to the soil every two to four weeks during the growing season (spring through fall).
Another option is to use a slow-release fertilizer, which is a granular fertilizer that releases nutrients over a longer period of time. This can be applied to the soil around the peace lily once every six to eight weeks.
It's important not to overfertilize peace lilies, as this can lead to excess foliage growth at the expense of flowers. It's also a good idea to flush the soil with water every few months to help prevent the build-up of excess fertilizer salts.
Finally, it's worth noting that peace lilies are sensitive to the type of water they are given. It's best to use purified or distilled water, as tap water and well water can contain minerals that can build up in the soil and cause problems for the plant.