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
First Accident World Seed created
Unlock the Valley Province
Create a Perfect World Seed for each World type
Inspect 20 villagers
Unlock all building blueprints
Unlock the River Precinct
Complete a relationship character to the "Friend Ending"
Use the Watering Can on a bed
Unlock the Forest Region
Befriend 5 critters
Kick around items in the Gnome House
Have 10 residents leave town
Build 20 buildings
Unlock the Plains District
Turn 100 items into Essences
Talk to 20 villagers
Walk a total of 1,000 miles
Walk 500 miles
Complete first district requests
Assign first villager to a house
Unlock Book