Board Thread:Plants vs. Zombies 2: It's About Time/@comment-18464102-20131207111206/@comment-4077536-20140119190422

I forgot to mention: for those who can Power Lily, you can replenish your PF that way. Generally, you can't rely on zombies for PF after level 20, especially with the new update which seems to decrease its frequency. Usually I get 1 or 2 after a level, once I got 3, but sometimes none. Don't be afraid to spend some coins, you can win them back easily with Canons Away.

Also, during the battle I never use PF, even with Gargs (so far, at least). Use it only when you really need it.