Complete the outlined tasks, and earn the Trophies.
| Trophy | How to unlock |
| 20 Below Zero(Bronze) | Immobilize 20 full-sized zombies with a single Ice-shroom. |
| Blind Faith(Bronze) | Complete an extremely foggy level with using Planterns or Blovers. |
| Chill Out(Bronze) | Feel the rhythm, feel the rhyme, you've one level to destroy 3 bobsleds, its Jalapeno time! |
| Close Shave(Bronze) | Survive the zombie onslaught after all lawnmowers have been used. |
| Crash of the Titan(Bronze) | Defeat your first Gargantuar |
| Defcorn 5(Bronze) | Build 5 Cob Cannons in a single level. |
| Diamond Beghouler(Bronze) | Upgrade all your plants in Beghouled |
| Don't Pea in the Pool(Bronze) | Complete a daytime pool level with using Pea-shooters of any kind. |
| Enlightened(Bronze) | Collect all Zen Garden, Mushroom Garden and Aquarium Garden plants. |
| Explodonator(Bronze) | Blast 10 zombies at once with a Cherry Bomb! |
| Flower Power(Bronze) | Keep 10 Twin Sunflowers alive in a single level. |
| Good Morning(Bronze) | Complete a daytime level by planting only Mushrooms and Coffee Beans. |
| Greenfingers(Bronze) | Grow 10 Zen Garden plants to full size |
| Last Mown Standing(Bronze) | Defeat the last zombie in a level with a lawn mower. |
| Lawn Mower Man(Bronze) | Kill 10 zombies with a single lawn mower. |
| Melon-y Lane(Bronze) | Plant a Winter Melon on every lane. |
| Monster Mash(Bronze) | Crush 5 zombies with a single Squash. |
| Nom Nom Nom(Bronze) | Stop the horde using only the Sunflower, Wall-Nur, and Chomper on any level. |
| Penny Pincher(Bronze) | Pick up 30 coins in a row on a single level without letting any disappear. |
| Popcorn Party(Bronze) | Defeat 2 Gargantuars with Corn Cob missiles in a single level. |
| Pyromaniac(Bronze) | Complete a level using only explosive plants to kill zombies. |
| Smarty Branches(Bronze) | Grow the Tree of Wisdom to at least 100 feet |
| Soil Your Plants(Bronze) | Plant your first 10 peashooters |
| Sol Invictus(Bronze) | Complete Last Stand with 2,000 sun remaining |
| Sproing! Sproing!(Bronze) | Complete Pogo Party without using Tall-Nuts or Magnet-shrooms. |
| SPUDOW!(Bronze) | Blow up a zombie using a Potato Mine. |
| Sunny Days(Bronze) | Accumulate 8,000 sun during a single level. |
| Wall-Not Attack(Bronze) | Complete ZomBotany without using Wall-nuts, Tall-nuts or Pumpkins |
| Alive and Planting(Silver) | Survive 40 waves of pure zombie ferocity |
| Chili Free(Silver) | Complete Column Like You See'em without using Jalapenos |
| Grounded(Silver) | Defeat a normal roof level without using any Catapult plants. |
| Home Lawn Security(Silver) | Comlete adventure mode |
| Lucky Spin(Silver) | Get 3 diamonds in Slot Machine |
| Master of Morticulture(Silver) | Collect all 49 plants in the game |
| No Fungus Among Us(Silver) | Complete a nighttime level without planting any Mushrooms. |
| Pool's Closed(Silver) | Complete a pool level without using water plants. |
| Roll Some Heads(Silver) | Bowl over 5 zombies with a single Wall-nut. |
| Shooting Star(Silver) | Complete Seeing Stars before the first Flag Zombie appears |
| Shopaholic(Silver) | Go trunk driving and spend at least $25,000 on Crazy Dave's Twiddydinkies. |
| Zombologist(Silver) | Discover the Yeti zombie. |
| Beyond the Grave(Gold) | Beat all 20 mini games |
| Second Life(Gold) | Complete Adventure mode a second time. |
| The Complete Zombie(Platinum) | You've won every trophy, climbed every mountain, defeated every zombie, planted every plant. Congratulations! |