Anthurium red plants are tropical plants that grow outdoors only in USDA Zone 10 and above in the United States. In all other areas, the plant is grown indoors in plant pots. The anthurium red plant has a bright pink, tube-shaped flower that sits on the end of a long stalk. For this reason, the plant is often called the flamingo flower for its resemblance to the bird. The most important aspect of caring for an anthurium plant is moisture control.
Make sure that the soil around the anthurium is well drained and has organic matter. If necessary, combine 1 part peat moss, 1 part perlite and 1 part pine bark in a bucket. Replace the soil in potted anthuriums with the prepared mixture. For outdoor plants, dig up the plant with a garden spade and place a 2- to 3-inch layer of the mixture into the bottom of the hole. Place the anthurium red back into the hole and cover the roots with soil.
Place a 2- to 3-inch layer of mulch around the base of outdoor anthurium red plants. This will help to retain moisture near the roots of the plants.
Water the anthurium red at least twice per week or when the top of the soil feels slightly damp. Do not allow the soil to dry out, as this will injure the plant. Do not allow the soil to become overly soggy, as this too is harmful. Make sure that anthurium pots have drainage holes and that they do not sit in water.
Place the anthurium red plants in an indoor or outdoor location where they will receive plenty of indirect sunlight. For indoor plants, place them near a window that has a sheer covering over it.
Fertilise the anthurium red once every other month using a 3:1:2 liquid plant fertiliser. According to Hawaii Tropicals, you should dilute the fertiliser to 1/4 the strength recommended on the packaging.
If the anthurium red plant start to fall over, insert two to three plant stakes into the soil behind the plant and tie the stalks to the stakes loosely using gardening tape.