Ideally, you should plant bulb iris bulbs at least 15cm deep to allow them the space that they need to thrive. By doing so, you can ensure that the plants will flower bigger and better each year.

Iris is a genus of herbaceous perennial flowering plants popular in many gardens. While one of the most recognizable groups ...

The bulbous iris is the other basic group of irises. The root of this plant resembles more of a bulb than an underground stem. Dutch and reticulate iris are members of this group.