If you live in the south you can plant it now. Depends how cold your winter gets - if you are in the north of the state it might be best to keep it under glass as its rather late for the roots to settle before the cold sets in.. Hopefully one of our US members will give you better advice.

Rather than worry too much about fertilizer it would be good to prepare the ground really well with lots of well rotted compost - buy some if you haven't got any. You might also take the opportunity of doing a soil test to find out which nutrients are lacking, if any. They are cheap to buy and easy to use.

Cheap homemade fertilizer can be made from comfrey or nettles if they grow round your way, or seaweed (the latter rather a challenge for Indiana, but you should be able to buy the fertilizer ready prepared.) You could invest in a small bag of fish blood and bone, and sprinkle a little in the planting hole - a little being the operative word. It works out cheap as a little goes a long way. It may not flower next year though as it might concentrate on growing roots and settling.

Hair clippings from barbershops and pet groomers are a good, though slow, source of nitrogen.
Fruit and root vegetable peelings are a good source of potash, especially if composted.
Phosphate is more difficult, though. Bones are calcium phosphate, but should be broken down to pieces less than 1/2 inch across in their smallest dimension to be effective, especially in flower beds and vegetable gardens. Unless you have an unusually powerful home grinding mill--and I don't even know if they are made strong enough!--or a rock crusher, you may be out on the back porch with a big rock, a hammer, an old burlap bag, and, of course, safety glasses!
Small galvanized hex nuts can provide iron and zinc, and possibly manganese, depending on the type of steel they are made of. Epsom salts from the drug store are a good source of magnesium. Fortunately, most of Indiana is not subject to micronutrient deficiencies.