Winter time we relax from our outside watering chores, but lets not forget our inside plants need water to!  Many of us stick to a watering schedule of once a week for houseplants.  Generally this is a good rule to follow, but winter time you may need to adjust your habits.  Watering plants is reflected by their environments.  They will use more water in hot bright locations, less in dark or cool situations.  When winter comes, days are shorter, so there's less light and we generally keep our houses cooler and watering should decrease to keep plants healthy.  They won't use water as fast as they do in the summer and excess water will stay in the soil.  Root rot happens when roots stay too wet for too long and start to rot away.  Fungus Gnats are usually a problem with excess soil moisture.  A natural fungus spray can control Fungus Gnats if they become to much of a pest.  

Check each plant by hand or use a water meter to make sure they actually need watering.  Break yourself out of your summer habits and cut back on most watering to avoid these problems.  

We keep our houseplants healthy with a low dose of organic fertilizer each time we water.  Adding one teaspoon of Big Bloom per quart of water.  I no bad odor and provides flowering or non-flowering plants with all the nutrients they need.