Filler flowers in Japanese are known as

Solution (By Examveda Team)

Filler flowers in Japanese are known as Jushi.
Jushi is any flowers or leaves that do not make up the 3 main placements. They are meant to complement the shin, soe and tai. Add as many jushi as you like, but only in odd numbers.
Soe is two-thirds of the shin, and tai is two-thirds of soe. If shin and soe are branches, accompanying decorative flowers, called jushi, will be half as long as shin, soe and tai.