- 1). Move the plant to a place where it will receive bright but diffused light, such as a thinly curtained window, for at least nine hours per day. Anthuriums require high light levels to produce continuous blooms.
- 2). Increase waterings to two to three times a week. Anthuriums grow best in at least 50 percent humidity. Maintaining higher humidity indoors can be a challenge. To raise the humidity, place pots in a tray filled with gravel or aquarium rocks and a shallow layer of water or use a room humidifier. Grouping multiple plants closer together will also raise the humidity around them. Watch for brown leaf tips as that may be a sign of low humidity.
- 3). Fertilize anthuriums every other month with a good blooming plant food. Such formulations will have a higher ratio of potash (the P in the N-P-K formula).
- 4). Transplant the anthurium to a well-aerated growing medium. A good mixture is a 1:1:1 mixture of peat:perlite:bark or a 2:1 mixture of peat:perlite.
- 5). Keep temperatures high and do not allow daytime temperatures to fall below 60 F.
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