Q.My Iris Isn’t Blooming
Tall green healthy looking leaves but no blooms. I don’t exactly have a green thumb. lol This is a bulb/plant “baby” reproduced down through the years…The original bulb/plants came from my mom’s great grandmother’s house. It’s a yellow iris.

Certified GKH Gardening Expert
Irises don't dependably bloom every year. The more prolific ones do, because they have a bigger stand of rhizomes. Iris need a sunny location and they like the top of their rhizomes just above the soil line to bask in the sun. Also, if left for years, they will get overcrowded and that will inhibit blooming. So will shade. Also, keep weeds and ground covers from creeping over them. About every 3 or 4 years, dig up your clumps and break off the sideshoots coming off the mother rhizome. Replant the offshoots and discard the mother rhizome. It won't bloom again.
Here is more info:
https://www.gardeningknowhow.com/ornamental/bulbs/iris/iris-plant-care.htm
https://www.gardeningknowhow.com/ornamental/bulbs/iris/divide-bearded-irises.htm
https://www.gardeningknowhow.com/ornamental/bulbs/iris/iris-plants-not-flowering.htm