If barren rock and wilted Plants are what you want, he's the landscaper for the job.
Update history
Update 1.12.6
Design change: His mustache is now black.
Update 1.14.13
Rarity change: Uncommon → Rare
Update 1.16.10
Rarity change: Rare → Super Rare
Strategies
With
Landscaper's ability weakens a plant to either make it pose less of a threat to you, or to stop it from attacking entirely, which can save you or your zombies from going down. It can also be used to lower the strength of a plant to 2 or less, thus allowing that plant to be destroyed by Rolling Stone or Weed Spray.
If you are able to lower a plant's strength to 0, it gives you a definite edge on that lane since the plant on it can't do anything, and your opponent is unable to play anything on that lane if they lack plants with Team-Up. This essentially allows you to play set-up zombies such as Zombie King, Team Mascot, and Aerobics Instructor on that lane with little fear of them being destroyed, unless your opponent either plays tricks to destroy them or boosts the plant's strength back up again.
Play multiple threats to force the opponent to consider which plant needs to have its strength reduced. You can also boost back the plant's strength if you are in the Mega-Grow or Kabloom class, or Bounce back the plant using Rescue Radish if you are playing as a Smarty hero.
It is not recommended to Bounce Landscaper, as he can then be replayed, activating his ability again.
Gallery
Plants vs. Zombies Wiki has a gallery for Landscaper.
Hearty class. He costs 3
to play, and has 2
/2
. He has the Gravestone trait, and his ability gives a selected plant -2
.
Mega-Grow or 
Kabloom class, or Bounce back the plant using Rescue Radish if you are playing as a 
Smarty hero.
Brainy
Crazy
Hearty
Sneaky
