How Fern works, and the plant care behind it.
New · 6 Oct 2026
Fern keeps two dates for each plant, the day it was born and the day it came home, and marks them once a year. What the birthday moment shows, how it stays quiet, what happens when several plants share a day, and what we haven't got right yet.
Every post sits on one of three shelves.
Watering, light and new plants, with the evidence behind it.
Why the app behaves the way it does.
The clearest look at how Fern works out a plan. 13 min.
How reminders change with the forecast. 10 min.
Why Fern messages you so little. 11 min.