How type of sunlight does the clematis get? If it gets bright indirect sunlight, that might be enough. The fact that the plant is growing well seems to indicate to me that the lighting conditions are adequate. Some clematis will not bloom the first year in the ground. During that time, the plant is most probably establishing its root system instead of concentrating on its top growth. I would give the plant another year in its current location before I decided to move it. I have a plant of viticella the species which was planted this spring and hasn't bloomed yet. I am not the least concerned with it not doing so.

Four other things to consider. Bourbon is a type II and blooms on older wood. Your plant probably has no older wood and therefore shouldn't be flowering now. How big was the plant when you planted it and what kind of fertilizer are you using? Small plants will often take time to establish their roots before flowering. Using a fertilizer with too high a nitrogen content can make a vine produce a lot of top growth and very little/no flowers. Lastly, if you are experiencing the heat and drought conditions a lot of us on the east coast are, then the plant is probably conserving its energy to bloom once the conditions are more amenable and less stressful for blooming.

THanks, it is new, I got it from Silver Star this spring. It gets shade in the AM and afternoon, but indirect in midday. I haven't really fertilized it, except a few shots with Miracle Gro when I'm doing my other plants.

Since it blooms on old wood, next spring do I cut it back or leave it?

Well if it is a new plant that was put in this spring, I would prune it back next spring just to get the root system established better and to help force new vines from the crown of the plant. I bet doing so won't cause that much of a delay in its blooming next year. Some shade on clematis in the south is a good thing since they can get brown and crunchy during the dog days of summer we are experiencing now.

You may want to try giving it some slow release fertilizer that is low in nitrogen and higher in phosphorus (the middle number in the typical three digit description of fertilizers such as 10- 10-10). Too much nitrogen can produce a lot of green growth and little flower development. Phosphorus aids in root development and in flowering.