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