Wilt, A.K.A. Experiment 511, is an illegal genetic experiment created by Jumba Jookiba. He is designed to wilt plant life. Her one true place is working as a local florist.
Experiment 511 was the 511st genetic experiment created by Jumba with Hämsterviel's funding. He was designed to wilt plant life. (Does so by extracting the moisture from anything she touches).
511 and the other first 624 experiments were deactivated and smuggled to Earth by Jumba during his mission to capture Experiment 626.
All of the experiment pods were released and scattered across the island of Kauai.
At the unknown point, he was activated, captured, tamed and named Wilt.
The moisture that she absorbs gets turned into a slime that she excretes from her skin, this slime can be used to revitalize the plant life.