User blog comment:Spencerdafox/ZomBotany Answers!/@comment-7233548-20111112020501/@comment-4618066-20120419151642

Not too hard if you use a proper strategy. In my opinion, ZomBotany 1 is harder because Cattails can be useful. I used Gatling Peas first time. It worked, but I don't remember what I did.