Are you watering your plants correctly?
Watering your plants correctly will help you avoid overwatering, root rot, and plant death. Overwatering is the most common way to kill a houseplant. Always err on the side of less frequent watering as most houseplants will recover from too little water, but not from too much.
The most important thing you can do is also the thing you do first - Choose the Best Pot
For best results, chose a pot with a drainage hole. If drainage is unavailable, place a 1-2 inch layer of natural substrate at the base of the pot (e.g. rocks, cork, horticultural charcoal).
Before you decide to water - Touch the Soil
Your plant’s soil will demonstrate when it is time to water. Dig your index finger 2-4 inches into the soil to gauge moisture level.
When you've determined the plant needs water - Water Thoroughly
Ensure that soil is evenly saturated by watering until water drips from drainage holes. Exceptions are pots without drainage holes (which are not recommended) and succulents. Make sure no water remains in the tray for longer than an hour.
When you decide to repot - Choose the Best Soil
Avoid potting soil when you repot your plants. Potting soil is too dense and heavy for indoor plants. Use a 50/50 combination of Orchid Mix and Succulent/Cactus Soil for all indoor plants. If you are repotting an Aroid you can use a 70/30 mix with more Orchid Mix.
Don't forget! - Make Seasonal Adjustments
Most plants require less water during fall and winter months because there is less sunlight. Also be sure to protect plants from the dry, hot air of heating vents.