Here is the full list of all 17 The Gardens Between achievements. It takes around 2-3 hours to unlock all of the achievements on Windows.
Friends apart, memories remain.
Pluck the moon right out of the sky.
Arina’s at the end of her rope.
Saw the plank. Next, get a hammer.
What's under the table cloth?
A sneaky stowaway Garden Friend.
A Garden Friend is hiding in the Esky.
Super Silly Crow escapes the TV.
A Garden Friend sneaks a look.
A Garden Friend follows on a school trip.
A Garden Friend gums up the pipes.
A Cosmic Garden Friend phones home.
Restore the board to a clean state.
Super Silly Crow is defeated.
Arina throws popcorn at Frendt five times.
Release the hidden Garden Friend.
Arina really shouldn't be pressing buttons.