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