Jeanne, I plant iris seeds in the fall and leave them out for the elements to remove the germination inhibitors. I'm not sure if it is too late for you this year but it doesn't hurt to try. You will need to make sure the planting soil is wet to get the process started. Typically I use 1 gallon pots and plant 3/4 to an inch deep. Hold the pots over for another season if they don 't germinate in the spring. They need both the chill period and rain to wash away the inhibitors.