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