About Fernlight
Fernlight keeps a care schedule for each houseplant and changes it as the days get shorter or the heating comes on. Tell it which room a plant lives in and it does the rest.
The light meter uses your camera to measure a spot in lux, then tells you which of your plants would be happy there.
What it does well
Seasonal schedules
Watering gaps stretch in winter and tighten in summer, based on your daylight hours.
Light meter
Point the camera at a windowsill and get a reading in lux with plain advice.
Care log
Tick off watering, feeding and repotting, with photos to track growth.
Plant ID
Identify a plant from a photo to set up its schedule.
What’s new
4.0.222 Sep 2026
Autumn schedule changes now start two weeks earlier in northern regions.
4.0.031 Aug 2026
New care log with growth photos.
3.9.56 Aug 2026
Light meter calibration for more phone cameras.