Anthurium angustilobum Plant Care

Anthurium angustilobum (Anthurium crassinervium) belongs to the Araceae family within the Anthurium genus. Anthurium angustilobum is native to Venezuela and Colombia in South America, and some Caribbean islands. Anthurium angustilobum is also known as Anthurium grandifolium.

Anthurium angustilobum displays an upright, clumping perennial growth habit, reaching up to 2 ft tall with a spread of approximately 2 ft. Anthurium angustilobum produces distinctive spadix with colorful spathe in red, pink, white or green.

Leaf size: approximately 12 inches.

Anthurium crassinervium requires watering every 7–10 days. Allow the top layer of soil to dry between waterings to prevent root rot. Reduce watering frequency during winter when growth slows.

Anthurium angustilobum thrives in bright indirect light. Avoid placing Anthurium angustilobum in direct, harsh sunlight for extended periods, as this can scorch the foliage.

Anthurium crassinervium grows best at temperatures of 65–80°F. Anthurium angustilobum prefers humidity levels of 60–80%. A pebble tray or humidifier helps maintain adequate moisture around the plant.

Well-draining, peat-based potting mix with perlite for aeration. Good drainage is essential for Anthurium angustilobum to prevent waterlogging, which leads to root rot and fungal issues.

Feed Anthurium angustilobum every 6 months during the growing season (spring and summer) with a balanced fertilizer diluted to the strength on the label.

Pause feeding in autumn and winter, when growth slows, and never fertilize dry soil — water first.

The PlantoScan app can remind you when to water and when to fertilize each plant.

Repot every 2-3 years in spring. Choose a pot one size larger than the current container, and ensure it has drainage holes to allow excess water to escape.

Anthurium angustilobum can be propagated through division, stem cuttings. Similar propagation techniques also apply to flamingo lily plant care, which shares the same genus.

See all plants toxic to cats and plants toxic to dogs.

Anthurium angustilobum is susceptible to spider mites, aphids, mealybugs. Inspect the foliage regularly, especially along leaf undersides and stems. Treat infestations promptly with insecticidal soap or neem oil to prevent spread.

Yellow leaves, brown tips or drooping? See common plant problems and how to fix them.

Anthurium angustilobum grows outdoors in USDA Zone 10b – 12b. It survives winters down to planting zone 10b. Anthurium angustilobum is native to Venezuela and Colombia in South America, and some Caribbean islands. In cooler regions, grow Anthurium angustilobum as a houseplant or bring it indoors before the first frost.