Planst vs Zombies: The Best Survival Endless Strategy - 100 flags and beyond

First of all, go to crazy Dave's shop to purchase a rake. It will take down the first zombie and will help you buy some time.

Plants selection for startup should be Sunflower, Imitater Sunflower,
Twin Sunflower, Lilypad, Cattail, Pumpkin, Melon, Wintermelon, Cherrybomb and Jalapeno.

Plant 8 sunflowers on columns 8 and 9 as shown on the photo beloe. Next, plant lilipad, cattail and pumpkin on the column 5 of the pool. At this stage, one cattail is already enough to take down all the zombies.

Continue planting sunflowers on the column 7 and on the pool. Uprade only the 3 sunflowers as shown on below photo. Plant your second cattail once recharging is done. Use the extra sun to slowly plant melons and upgrade to winter melons.

At the start of flag 3, plants selection should be lilypad, fume shroom, coffee bean, gloom shroom, pumpkin, imitater pumpkin, melon, winter melon, umbrella leaf and cherry bomb.

Replace the sunflowers on column 7 with melons. Place 2 umbrella leaves at the back. Start planting gloom shrooms on the pool. Always protect your water plants with pumpkin except for the sunflowers. Also, continue putting pumpkins to your land plants, backwards first.

At the start of flag 5, plants selection should be lilypad, fume shroom, coffee bean, gloom shroom, pumpkin, imitater pumpkin, melon, winter melon, umbrella leaf and cherry bomb.

Replace sunflowers on column 8 with gloom shrooms and continue upgrading your melons to winter melons. Don't forget to continue placing pumpkins on your plants.

At the start of flag 7, plants selection should be lilypad, fume shroom, coffee bean, gloom shroom, pumpkin, imitater pumpkin, kernel pult, cob cannon, cherry bomb and jalapeno.

Upgrade the fume shrooms on rows 2 and 5 to gloom shrooms. Start replacing sunflowers on the pool with cob cannons. Continue to keep the plants selection unto the next flags until you have 4 sets of cob cannons on the pool.

Always take note of the plants selection:

Lilypad, Fume Shrooms, Coffee Bean and Gloom Shrooms - for quick replacement in case of jack-in-the-box mishaps

Pumpkin and Imitater pumpkin - maintains the overall well being of the plants

Jalapeno, Cherry Bomb, Squash and Doom Shroom - for emergency purposes

Gloom Shrooms: the six gloom shrooms on the pool can take care of the zombies passing through rows 2 & 5 and all water zombies, specially the annoying dolphin zombies. The four at the back (column 2) are placed to handle Digger Zombies and Imps thrown by injured Gargantaurs. The four Gloom Shrooms at rows 2 and 5 will help take down water zombies and zombies passing through rows 1 and 6. Gloom Shrooms also make the columns 5 to 9 completely invulnerable to Bungee Zombies.

Fume Shrooms: Both columns can begin firing on zombies as soon as they take a step onto the lawn. Splash damage hits all in the row.

Cattails: The two Cattails are enough to pop out all the balloon zombies.

Winter Melons: The 8 Winter Melons will not only splash heavy damage, they also slow down zombies. Never bargain the importance of the Winter Melon on the pool, it helps maintain the overall well being of the pool Gloom Shrooms.

Leaf: The 2 Leaves at the back protect the plants on columns 1 & 2 against Catapults and Bungee Zombies. Columns 3 & 4 are somewhat vulnerable to Bungee Zombies, and that’s where the Cob Cannons come in…

Cob Cannons: The 4 Cob Cannons are mainly to take down red-eyed Gargantaurs and Bungee Zombies. My plants set up can take down all zombies except for these two.

Twin Sunflower: Economy is very important. It’s game over once you run out of Sun. You’ll need lots of Sun in case of Jack-in-the-Box Zombie explosions and replacement of damaged pumpkins.

Pumpkins: Protect all your plants except for Cob Cannon.