On Topiary is a medal in Plants vs. Zombies: Battle for Neighborville. It is awarded for standing on the fish topiary near the museum.
Its name is a pun of the phrase, "on top" and "topiary," shrubs or trees clipped into ornamental shapes.
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StrategyThis medal requires you to use the Foot Soldier.
Head to the museum in Up-Down Uptown. To the right of this museum is a fish topiary. Stand near it and jump, then upon hitting the maximum jump height, use the Rocket Jump ability to propel yourself to the top of the topiary. The medal should unlock after you stand on top of it.