Air Plants: Bring Tropical Flair to Hot, Humid Gardens

Air plants (epiphytes) occupy a unique niche — they grow on tree trunks and branches, absorbing water and nutrients from the air. In warm, humid climates like the southeastern U.S. (Carolinas to coastal Texas), they add lush, layered greenery and support wildlife. Spanish moss draping live oaks is a familiar sign that other epiphytes will thrive nearby.

What Are Air Plants?

Epiphytes have aerial roots and tiny trichomes that capture airborne moisture and nutrients. They don’t harm host trees — they simply use them for support. They’re also excellent for living walls, needing only a mounting surface, filtered light, and humidity.

Types of Air Plants

Bromeliads (Tillandsia spp.)

• Giant airplant (T. utriculata)
• Cardinal airplant (T. fasciculata)
• Ball moss (T. recurvata)

Staghorn Ferns (Platycerium spp.)

P. bifurcatum (Australian native) is most common. Mount on porous wood or lava rock so basal fronds can spread. Fertile fronds are antler‑shaped.

Resurrection Fern (Pleopeltis polypodioides)

Native to the Southeast. Curls up when dry, “resurrects” after rain. Often on live oak bark.

Orchids

• Green‑fly orchid (Epidendrum magnoliae)
• Florida butterfly orchid (Encyclia tampensis)
• Moth orchids (Phalaenopsis spp.)
• Corsage orchids (Cattleya spp.)

How to Grow Air Plants Outdoors

Mounted on Boards or Tree Branches

Soak young plants in lukewarm water, let drain. Attach with non‑copper wire or plant tape to untreated wood, driftwood, lava rock, or tree bark (must be freely draining with crevices). Hide wire with sphagnum moss or coconut fiber. High, humid locations mimic their canopy home.

Suspended

Large staghorn ferns can hang from chains (rated 100+ lbs) under mature shade trees. Use S‑hooks and eye hooks on a pre‑mounted board for easiest installation.

Shopping & Care

• Buy native, sustainably grown plants — avoid wild‑collected specimens. Check botanical gardens, bromeliad/orchid societies.
• Water: In humid climates, rainfall may suffice. In dry spells, mist 2–3 times weekly. Monthly soak if indoors.
• Fertilize: Light monthly fish emulsion spray in summer boosts blooms and color.