Board Thread:Plants vs. Zombies 2: It's About Time/@comment-5792287-20131203091220/@comment-5792287-20131212113624

@LD, yes, it does. Even Snapdragon Plant Food can't one-hit-kill it.

@GollddMAN, in the Challenge Zones, if you buy Plant Food or Power-ups, you are usually still able to buy them again, as long as you have the cash. I've heard that I'm not the only person with this glitch, and the glitch hasn't been fixed in this update. There's no trick or anything, just buy the Plant Food/Power-up as many times as you want, provided you have the cash.