Description

Light
Indoors or out, anthuriums grow best in bright, indirect light. Avoid direct sun, which can burn the leaves.

Soil
Anthuriums prefer coarse, well-draining potting. An orchid mix with additional sand and peat moss mixed in makes a perfect potting mix for anthuriums.

Water
The soil should be kept slightly moist and never allowed to dry out completely. Set the pot in a tray with rocks or gravel that has water. The plant’s water can drain there and help keep humidity levels higher around the plant. Allow the top of the soil to dry out to the touch before watering again. Indoors, this is about once a week. If outside, during hot days, it can be every two or three days between waterings.

Temperature and Humidity
All species of anthurium are native tropical plants, and mimicking those conditions will give you the best chances for success. This plant prefers high humidity and temperatures between 65 and 85 degrees Fahrenheit. These plants can be grown outside in zones 11 to 12 and will likely perish at temperatures 40 degrees or less.

In dry climates—or during dry winter months—mist the plant daily to keep humidity levels high. You may find it necessary to run a humidifier constantly during dry months.

Fertilizer
It is safe and recommended to use liquid fertilizer throughout the growing period. Use a fertilizer high in phosphorus, dilute it to 1/4 strength and feed the plants every week. The phosphorus-rich fertilizer will help encourage blooms. The common gardening expression, “Weekly, weakly” applies to how often to fertilize and the strength or concentration of fertilizer to water.