Experiment 404 was the 404th genetic experiment created by Jumba with Hämsterviel's funding. She was designed to make carnivorous plants bloom very fast.
404 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.
Bloom is a green experiment with a flower-like antennae. She has half flower-like ears, a flower attatched around her neck, crab-like hands and reptile-shaped feet.