So long as you keep any brand new cuttings in the shade and use a rooting hormone I'd imagine you'd be ok, but you're playing catch up if it's a bit late. I suppose you'd run the risk of freezing and major die off if you have frost in your area. Perhaps, if you don't have a green house, you'd be willing to start them in pots and bring them into the house over the winter? If so, why not try giving it a go? If nothing else it's a learning opportunity.