Board Thread:Plants vs. Zombies Wiki Discussion/@comment-6593079-20130222073026/@comment-5792287-20130223143742

1. Blovers save space in the seed tray, which is often required in Fog levels once you've completed Adventure.

2. I said I do use Cattails when there is water, but only the Hard modes. In Easy Pool and Easy Fog Survival, you only need one Blover every time the Balloon Zombies appear in the lineup, as they only appear during the Flag, so I only use Cattail in Hard Modes with water.

3. I say Plantern is better if you have room in the Seed Tray for something (Garlic or Pumpkin) to protect it with, but due to Crazy Dave, you don't tend to have room in the Seed Tray during Adventure.