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