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