Level 6

Difficulty

 * New plant: Wall-Nut. Can block off scratches from cats so this can be a piece of cake
 * Bware that is guaranteed that one Wall-Nut may be enough for this level.
 * You have 400 Sun. Try to beat cats or plant more sunflowers to be ready for wall-nuts

Strategy

 * Since you have Wall-Nut usable, handle the situation by planting AT LEAST 1 Wall-Nut
 * Repeat the past strategies, plant more sunflowers and peashooters and don't let the cats scratch your other plants.

Trivia

 * This is the first level in where you can use a protection plant