Here is the full list of all 17 Grow Defense achievements.
Max out Rockets for the Rocket Launcher.
Complete 10 researches
Reach Mastery Level 3
Defeat 5 Unique Mega Bosses
Max an Items Level
Reach Experience Level 40
Destroy your first Mega Boss
Find your first legendary item!
Complete round 200
Stock up over 50 gems
Complete your first research
Have 1 million gold in your pouch
Unlock the mage tower.
Fingerbang the screen over 100 times
Defeat The First Boss.
Finger Bang the screen over 100000 times
Max 5 Legendary Items