Anthuriums, particularly the larger-leaf varieties, can be a bit more demanding in terms of care compared to their smaller-leaved counterparts, but with the right environment, they thrive beautifully. One crucial aspect often overlooked is humidity. While most plants appreciate humidity, big-leaf anthuriums require it on a higher scale—ideally, around 60-80%. Without this, their large, dramatic leaves may begin to curl or show brown tips. To provide this, consider using a humidifier, placing the plant on a pebble tray with water, or grouping it with other plants to create a microclimate of moisture. Misting the leaves occasionally can also help, but avoid excessive water droplets sitting on the leaves for too long, as this could lead to fungal problems.
Another factor that people often miss is the importance of proper watering. Anthuriums are prone to root rot, especially when overwatered, yet they do like moist soil. The key here is to let the top 1-2 inches of soil dry out between waterings, which can be tricky if the plant is in a pot that doesn't drain well. Using a well-draining potting mix with ingredients like perlite or orchid bark ensures water doesn't pool around the roots. Also, always opt for room-temperature water, as cold water can shock the roots, especially in colder climates, and hot water can burn the delicate root system.
Lastly, while many focus on providing bright, indirect light, they fail to realize that big-leaf anthuriums can be sensitive to direct sunlight, which can scorch their large, tender leaves. While they can tolerate lower light conditions, they won’t thrive as vigorously. Ideally, place them near a window with sheer curtains or in a spot with bright, indirect east or west light. Another often overlooked factor is fertilization—big-leaf anthuriums are heavy feeders during the growing season. A diluted, balanced liquid fertilizer every 4-6 weeks is ideal, but avoid feeding them in the winter months when they are dormant. This helps encourage lush growth without overwhelming the plant with excess nutrients that can lead to root damage or poor leaf development.
