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