Here is the full list of all 17 Grow Up achievements worth 1,000 gamerscore. It takes around 10-12 hours to unlock all of the achievements on Xbox One.
Complete the game 100%
Complete all challenges
Collect all crystals
Unlock all telerouters
Rescue MOM
Take a critter to the moon
Blast a critter 100m
Complete a challenge holding a Critter
Orbit the entire planet in BALL mode
Flower all STARPLANTS
Unlock all seeds
Throw 100 seeds whilst gliding
Grab two Sporchids simultaneously and ride upwards for 400m
Discover the bull and the sheep
Visit all biomes
Discover letter block P
Plant 10 Champolines on top of each other