The vile Black Directive had set his evil eyes on Earth, as so many aliens had before him, including a large number in Ultraman Leo’s time alone. Silverbloome is designed after a jellyfish and a Japanese wind chime.
This could be in reference to the petal like appendages at the base of its body. Silverbloome's name was created by combining the English word ' Silver,' and the German word for Flower, ' Bloome', so its name literally means Silver Flower.