Hi Jamie, and welcome to our group! What Zone are you in?
First off It's a good time to plant them right now, so the timing is good.
Second, Iris need at least a half day of sun to do well. Full Sun is better unless you live where it's over 100 degrees a lot.
Third, It's always good to add compost to the soil, no matter what type you have. I would work up the soil some, and put the compost on top of your clay soil, and let the worms work it in. .Maybe someone who has clay soil would have other suggestions here. I have sandy soil.
After you plant them you will want to water them often the first few days or until you see that they have taken root. Then they don't require a lot of watering, unless you live in the desert.
Lastly, you can look forward to this group to convince you to get more and more until you are addicted like we are!
