Here is the full list of all 9 Garden Rescue achievements.
More than 100 plants put.
More than 1000 opponents defeated.
10 times played the same level.
More than 50 enemies sprung out during the whole game.
3000 coins accumulated during one level.
All levels completed on 3 stars!
10 levels completed in a row on 3 stars.
100 opponents dropped by the lawn mower.
50 enemies liquidated by mines.