They require full sun and exceptionally well-drained soil . Wet or soggy soil during their summer dormancy is the most common cause of bulb rot. Planting Depth: Dwarf types: Plant roughly 5–7 cm deep. Dutch types: Plant 10–12 cm deep (about 3–4 inches).
A less common group known for their distinctive fleshy roots attached to the bulb. They typically bloom in mid-spring.
They look best when planted in groups of three or more in a triangular pattern.
Bulbs should be planted in the autumn so they can undergo a necessary cold period to trigger spring growth.
Historically, iris rhizomes and bulbs were used to treat various ailments, including skin infections, digestive issues, and liver problems.