root rot on Air Plant
Quick answer
If your Air Plant has root rot, the most likely cause is: Tillandsia basal rot (Erwinia chrysanthemi) occurs when water is trapped in the leaf axils of the rosette for more than 4-6 hours after soaking. The hollow rosette structure in mesic species like T. ionantha creates a pocket where water pools, creating anaerobic conditions that favor soft-rot bacteria. Unlike terrestrial plants, air plants have no roots to absorb excess water—they rely entirely on trichome absorption and rapid drying.
Start here:
- 1. Soak plant fully submerged in room-temperature water for 20-30 minutes maximum, with leaves partially above water line
- 2. Immediately after soaking, shake vigorously to expel water from the rosette center
Why Air Plant gets root rot
Tillandsia spp.
Tillandsia basal rot (Erwinia chrysanthemi) occurs when water is trapped in the leaf axils of the rosette for more than 4-6 hours after soaking. The hollow rosette structure in mesic species like T. ionantha creates a pocket where water pools, creating anaerobic conditions that favor soft-rot bacteria. Unlike terrestrial plants, air plants have no roots to absorb excess water—they rely entirely on trichome absorption and rapid drying.
How to reverse root rot on Air Plant
- 1
Soak plant fully submerged in room-temperature water for 20-30 minutes maximum, with leaves partially above water line
- 2
Immediately after soaking, shake vigorously to expel water from the rosette center
- 3
Position upside down in bright indirect light (2000-5000 lux) with a fan or open airflow for 4+ hours
- 4
After drying, inspect the base — if still dark or soft, rot has progressed and the center may be compromised
- 5
If rot is caught early (only outer leaves affected), remove dead leaves and improve drying protocol; if center is mushy, propagation via pups may be the only option
Keep root rot off this Air Plant
After soaking, shake the plant vigorously and place it upside down in bright indirect light with active airflow for 4+ hours. Never return a wet air plant to an enclosed display case, terrarium, or decorative holder. The base must be completely dry to the touch before display.