Mulch, A.K.A. Experiment 111, is an illegal genetic experiment created by Jumba Jookiba. He is designed to tear up the ground beneath his feet. His one true place is with Mrs. Hasagawa as one of her "cats". He is voiced by Frank Welker.
He was activated by a watering can. The episode "Mrs. Hasagawa's Cats" also features these experiments: 002 Doubledip: Designed to double-dip, 031 Gotchu: Designed to pinch, 044 Forehead: Designed to sing off-key, 051 Hocker: Designed to spit acid, 077 Zawp: Designed to be lazy, 134 Shredder: Designed to shred paper, 214 Pix: Designed to take bad pictures, 288 Boomer: Designed to be a boomerang, 358 Manners: Designed to turn people polite, 507 Woody: Designed to eat wood, 521 Wrapper: Designed to wrap up things, 533 Blowhard: Designed to blow things, and 566 Derrick: Designed to drill holes.
Mulch is a red experiment with a blue nose, three tendrils on his back, gray patches around his eyes, white markings on his chest, stomach and rear that resembles a push-mower.
Mulch can tear up the ground beneath him like a push mower by using his mower-like body.
- Mulch doesn't always seem to pay attention to where he is going, as Stitch was able capture him by simply placing a containment orb in his path. Similarly, he was easily captured by a Leroy clone by walking onto a net trap in plain sight.
- Mulch's pod color is blue.
- Mulch is described by the experiment computer screen as, "Experiment 111. Primary function: Push mower".
- Mulch is one of the few experiments to not appear in the group photo at the end of Leroy & Stitch.