Here is the full list of all 22 Grow: Song of the Evertree achievements. It takes around 20-25 hours to unlock all of the achievements on Windows.
Unlock the Mountainside Ward
Unlock the Valley Province
Create a Perfect World Seed for each World type
Unlock the River Precinct
Unlock all building blueprints
Complete a relationship character to the "Friend Ending"
Kick around items in the Gnome House
Unlock the Forest Region
Use the Watering Can on a bed
Have 10 residents leave town
First Accident World Seed created
Unlock the Plains District
Inspect 20 villagers
Build 20 buildings
Befriend 5 critters
Walk a total of 1,000 miles
Turn 100 items into Essences
Complete first district requests
Talk to 20 villagers
Walk 500 miles
Assign first villager to a house
Unlock Book