Watering Houseplants and Preventing Salt Buildup

Giving your potted plants just enough water so the soil gets wet, but no water runs through the bottom of the pot can lead to salt buildup, which can inhibit the growth of your houseplants. You may not notice it until you start to see a whitish crust on the soil or sides of the pot. At least once a month, water your potted plants thoroughly, so that excess salts will be flushed out the drainage hole of the pot.