User blog comment:Milesprower2/PvZ Math: Best Boosts/@comment-1716189-20141230115338

So what about defensive ones? All of them are useful in my opinion!

Iron Maiden greatly enhances the wall nut. Tall nut gets very powerful with the boost. Pea-nut can hold greater damage AND make peashooter boost damage, infi-nut is a must on BWB levels with fishermen. Also you didn't count single effect plants too, like potato mine, chilli bean, squash and Hypno shroom. With boosted ones, you can make epic mine fields or friendly gargantuar carnage! Finally, I find Torchwood very useful too.. It becomes Napalm, forever!