Here is the full list of all 33 Amy's Greenmart achievements.
Complete all shops
Unlock all achievements
Complete 100 days with a STAR (Normal Mode)
Serve 500 customers with full patience
Upgrade 10 gadgets to the maximum
Serve 25 Celebrities
Help 25 lost Children
Serve 1,000 customers
Earn 20,000 coins
Help 25 Senior Citizens
Pacify 50 Troublemakers
Catch 50 Thieves
Heal 50 plants
Water 50 plants
Grow 300 plants
Feed the cat 100 times
Serve 250 customers
Clean the floor 50 times
Buy all upgrades for a shop
Hire all helpers in a shop
Grow 100 plants
Complete all days in a shop with a STAR (Normal Mode)
Complete 5 days with a STAR (Normal Mode)
Serve 100 customers
Feed the cat 20 times
Catch your first Thief
Call the delivery courier 20 times
Earn 1,000 coins
Pacify your first Troublemaker
Upgrade a Gadget for the first time
Serve 25 customers with full patience
Grow your first plant
Complete day one