Water thoroughly then allow soil to dry slightly between waterings. Water less in winter when growth has slowed. Use filtered or distilled water because tap water may contain fluoride, chlorine and other chemicals that can damage palms. When watering, avoid getting the base of the palm wet to prevent rot. Use a container with drainage holes, and fast-draining potting mix to prevent soggy soil. Average room (around 40-50% relative humidity). Indoor air can become extremely dry, especially in winter. It's a good idea to use a humidity monitor near your palm, rather than guess. If air is dry, use a cool-mist room humidifier. It's the most efficient way to boost humidity for your houseplants.