An anthurium has dark green leaves and heart-shaped shiny flowers. There are hundreds of varieties of anthuriums with bloom colors that include pink, yellow and white. They grow to 2 to 3 feet tall and are popular houseplants. If properly cared for, an anthurium flower will bloom and add color to your home all year long.
Plant an anthurium flower in a pot rather than in the garden. That way, you can bring the plants indoors when temperatures drop below 70 degrees F or go above 90 degrees F. Also, take them indoors when the relative humidity levels dip below 50 percent.
Maintain a relative humidity level of at least 50 percent for indoor plants. Fill a shallow dish with rocks and fill with water. Set the pot on top of the gravel to help increase humidity. Also, mist the flower daily, especially when humidity is low, and set multiple anthurium flowers close together and away from drafts and vents.
Set an anthurium flower in an area with lots of bright light, but not in direct sunlight, which burns the leaves. Near a south-facing window or in front of a sunny window with a sheer curtain may be the ideal location in your home. Keep them away from heat sources such as televisions and radiators.
Water an anthurium flower only after the soil dries out. Poke your finger into the soil and if it feels dry, water it enough to completely moisten the soil.
Fertilize monthly with a water-soluble fertilizer labeled with a 1-2-1 ratio, such as 5-10-5. According to the University of Florida, overfertilizing, especially with nitrogen, can cause the leaves to burn and the flowers to bloom less.
Flush out the excess sodium that builds up in the soil once every two to three months. Do this by watering the plant in a sink or outdoors so water runs out the bottom drainage holes for about a minute.