Both are spring flowers. Hyacinth has a bulb and iris has a rhizome. Both are in separate plant families.
They are both Greek goddesses but are not related.
That is the correct spelling of "hyacinth" (the plant or its flower, or the unrelated water hyacinth).
The iris is a muscle that adjusts to allow more or less light into the pupil.
Hyacinth Nier's birth name is Hyacinth Valdez.
The blue jay is a bird and the crested iris is a flower. They are a similar color.
Hyacinth has three syllables.
Ash is not related to Iris. She is sometimes a traveling companion similar to Misty. She annoys Ash by calling him a little kid. Iris's goal is to become a dragon master.
Hyacinth Nier is 5' 4".
Robert Hyacinth is 5' 11".
Hyacinth Morgan died in 1956.
Hyacinth Morgan was born in 1885.
Hyacinth Tungutalum died in 2009.