Full list of all 12 Plants vs. Zombies achievements worth 200 gamerscore. It takes around 15-20 hours to unlock all of the achievements on Xbox 360.
Turned away the zombies even though all 5 lawnmowers were used
Proof positive that you only need three types of plants to win!
Planted your first 10 peashooters
Bowled a winner with a friend in Co-Op Wall-Nut Bowling
A fallen Gargantuar makes for good fertilizer
Complete adventure mode
Collect all 49 plants in the game
Grow the Tree of Wisdom to at least 100 feet
Survive 40 waves of pure zombie ferocity
Go on a 5 game winning streak in VS. mode
Blast 10 zombies at once with a Cherry Bomb!
Go trunk diving and spend at least $25,000 on Crazy Dave's Twiddydinkies