Forgot To Plant New Iris Bulbs Last Fall. What To Do?

Question

I have found 50 new iris bulbs that were not planted last fall. They have been in box out of light and cool and dry. When should I plant them since it is already spring?

Answer 1

I would go ahead and plant them as soon as the chance of frost has passed. Normally they are planted in late summer or early fall, but since they are from last fall, I would not wait.

https://www.gardeningknowhow.com/ornamental/bulbs/iris/iris-plant-care.htm