Nephrolepis exaltata
Boston Fern
Classic indoor fern with dense fronds, high humidity demand, and a strong preference for steady root moisture.
Sun Bright indirect Water Steady moisture Care High
Experiment
Humidity tray baseline
Slight reduction in edge crisping, but the bigger improvement came from more even watering and less afternoon heat exposure.
Season Winter Duration 8 weeks Risk watch
Hypothesis
A grouped humidity tray setup will modestly reduce visible frond crisping on Boston fern compared with the same watering schedule and no tray.
Intervention
Grouped three containers over pebble trays near bright indirect east light for 8 weeks.
Confidence note
Moderate confidence. Small sample, but the watering pattern stayed controlled across the test window.
Edge crisping incidence
Down modestly
Visible improvement after week 3 Watering interval stability
Up materially
Grouping made care more consistent Labor load
Acceptable
The tray itself was not magical. The value came from changing the whole maintenance context: grouped plants, better monitoring, and fewer extreme dry-down events.
Related plants
Profiles involved in the intervention
Experiment checklist
Local-state checklist for repeatable field logging
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