Native to Mexico, this tropical plant is anepiphyte that grows on trees or other plants.
As a houseplant, however, it is planted in a porous potting mix similar to orchids.
The flowers are inconspicuous; this plant is grown for its foliage.
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Anthurium clarinerviumhas a moderate growth rate and takes several years to reach its mature size.
Like allanthuriums, the plant is toxic to humans and pets.
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This can be near an east-facing window or inside a room with a south- or west-facing window.
Avoid exposure to direct sunlight.
Soil
The soil for anthuriums clarinervium needs to be light, coarse, and with excellent drainage.
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Water
Keep the soil evenly moist at all times and never let it fully dry out.
Temperature and Humidity
Maintaining the proper temperatures and humidity levels is key to successfully growing anthurium clarinervium.
The plant dies at temperatures below 40F.
In USDA Hardiness Zones 11 and 12 where winters are frost-free, Anthurium clarinervium can be grown outside.
High humidity of at least 50 to 60% is equally important.
Fertilizer
Anthurium clarinervium does not need a lot of fertilizer.
Apply an all-purpose houseplant fertilizer every two months during the growing season in spring and summer.
Using those for propagation is the easiest and fastest way to make more plants.
If in doubt, repot the plant right away in the same pot but with a fresh potting mix.
The best time to repot is in the spring as the new growing season starts.
Water thoroughly after repotting.
Gently wipe them with a soft, damp cloth, taking care not to damage the leaf surface.
Misting the leaves is only a temporary fix; to effectively increase the room humidity, use a humidifier.
Root Rot
Both overwatering and compacted soil lead to root rot.
Check the soil of your plant and repot it with a fresh potting mix if necessary.
Adjust your watering routine and only water when the top inch of soil feels dry.
Curling Leaves
Likewise, curling leaves can have different reasons.
The soil could be too dry too wet.
It typically tops out at about 12 inches in height at maturity.
If you provide the growing conditions the plant needs, it is not difficult to keep alive.
North Carolina State University Cooperative Extension.
