Watering Peace Lily
How much water does a peace lily need ?
Water use by any plant depends on its size, its root system, the available light, temperature and humidity.
For a Peace Lily, the best time to water is just before it starts to wilt noticeably. If you wait too long it will wilt pathetically, but it will recover several hours after watering. I don’t recommend letting it wilt completely. However, watch your plant carefully for a week or so and see how long it goes before its starts to wilt. Then, you will know how often yours needs water.