You are off to a good start. Place the cuttings into the medium so that only 2-3" of the cutting appears above the soil. This will allow for a stronger root system. Place them in a cold frame if you have one, or other spot protected from wind and frost. They are slow to root. Be careful not to water too much, as it will cause the cuttings to rot. I have a great book on propagation that you might like. You can get it on Amazon: The American Horticultural Society, Plant Propagation, but Alan Toogood. Good luck!

Here is a link that might be useful: Garden Design Now

Thanks for the input, gardenercindy. I don't have a coldframe outside. I'm considering a couple options. Once the cuttings are adequately calloused/rooted, I can pack them in damp rooting medium in a container and hold them in the frige (~35-40F)until spring and then plant them out in the spring when the soil is workable. Alternatively, once the cuttings are adequately calloused/rooted, I could just turn off the bottom heat in the rooting bin (or transfer the bundles of cuttings to pots filled with rooting medium) and keep them in the garage until spring. For the latter, I'm worried about lack of temperature control and untimely budbreak. Do either of these options sound plausible? Is light an issue during holding? Also, do you have any suggestions for determining when cuttings are "adequately calloused/rooted"?

Thanks again for the feedback!

I like to have about an inch of roots when potting up hardwood cuttings. I like the idea of potting them individually deep in one gallon pots when roots are apparent.Your garage temperature should be ok if the temperature remains between freezing and about 50 degrees. Lack of light will not be a problem until foliage grow begins. Fluctuation of the temperature is not a problem. Al

Thanks, Calistoga. That gives me a little more confidence.

How long ago did you start those cuttings?