Anthuriums are tropical plants admired for their striking foliage and vibrant, long-lasting flowers. Their unique appearance, from glossy, heart-shaped leaves to waxy blooms, makes them a popular houseplant. Many are curious about their natural growth patterns.
Understanding Anthurium Growth Habits
Whether anthuriums climb depends on the species, as the genus Anthurium includes over 1,000 varieties with diverse growth habits. Many are epiphytic or hemiepiphytic in their native rainforests, growing on other plants or trees for support rather than in soil. These climbing anthuriums develop specialized aerial roots to anchor them to surfaces like tree bark and absorb moisture and nutrients. This adaptation allows them to ascend towards the canopy, seeking better light.
Hemiepiphytic anthuriums start on the ground, then extend roots to climb trees or other structures. Examples of climbing or vining anthuriums include Anthurium clarinervium and Anthurium warocqueanum. Other recognized climbers are Anthurium scandens, Anthurium polyschistum, Anthurium veitchii, and Anthurium pentaphyllum. These varieties develop robust aerial roots.
In contrast, other anthurium species are terrestrial, growing primarily in the soil on the forest floor. The common houseplant, Anthurium andraeanum, known as the “flamingo flower” or “laceleaf,” has an upright, bushy growth habit and is terrestrial. Anthurium magnificum is also terrestrial, though its large leaves may require support as it matures. Understanding these distinctions helps provide appropriate care.
Providing Support for Climbing Anthuriums
For anthurium species that naturally climb, providing artificial support in a home environment benefits their health and development. Mimicking their natural habitat encourages robust growth and a more aesthetically pleasing display. Common support structures include moss poles, coco coir poles, or trellises, offering a surface for aerial roots to attach.
When installing support, insert it firmly into the potting mix without damaging the root ball. Gently guide existing aerial roots onto the pole and secure stems with soft plant ties or garden velcro, ensuring ties are not too tight. Keep the moss or coco coir pole consistently moist; this encourages aerial roots to root into the material and absorb moisture and nutrients. Regular misting helps maintain this moisture level.
Providing support offers several advantages beyond aesthetic appeal. It promotes better air circulation around the foliage, reducing the risk of fungal issues and pest infestations. Vertical growth also allows the plant to allocate energy more efficiently, leading to increased leaf size and overall vigor.