Trees are inanimate objects, but have been featured many times in Muppet productions, both as animated and inanimate objects.
- The Oak Tree appeared in a "Here is Your Life" sketch with Guy Smiley
- A similar version of a tree appeared on "Where Do I Belong"
- The Royal Apple Tree (an altered version of the former)
- Ernie presents the trees of the four seasons.
- In a sketch with Telly and Grover.
- A CGI animated face on a real tree in Season 35(?).
- Cookie Tree
- Gordon tells the story of The Pecan Tree in a storybook.
- A former tree, Log belongs to the Log Bird in the Twin Peaks spoof on Monsterpiece Theater
- Annie Oak is a talking oak tree featured in Elmo's Backyard.
- Four realistic-looking trees appear with Link Hogthrob when he sings "I Talk to the Trees" on episode 205. They can't stand the song, so they leaf.
- Miss Piggy sings "Trees" to a tree in episode 401.
- The same tree loses the Marathon Tree-Staring Contest against Klaus Mueller in a "Muppet Sports" sketch in episode 411.