Board Thread:Plants vs. Zombies/@comment-1953903-20130820021031/@comment-4009269-20130820050008

You generally shouldn't put Spikerock directly up front unless you have more behind it. Catapults aren't a very big threat, as long as you have Umbrella leaves in the back, so, putting Spikerock directly up front can use them up faster. Generally keep Spikerock in the second column.