A key factor in successfully growing areca palm trees indoors is providing just the right amount of light. They need bright, indirect light from a south- or west-facing window. The leaves turn yellowish-green in direct sunlight. The care of areca palms indoors isn’t difficult, but the plant won’t tolerate neglect. Water them often enough to keep the soil lightly moist in spring and summer, and allow the soil to dry slightly between waterings in fall and winter.
Fertilize areca palm plants with a time-release fertilizer in spring. This gives the plant most of the nutrients it needs for the entire season. The fronds benefit from a micronutrient spray in summer. You can use a liquid houseplant fertilizer that contains micronutrients for this purpose. Make sure the product is labeled as safe for foliar feedings, and dilute it according to the label instructions. Do not feed areca palm plants in fall and winter.