Best time June through August Use cuttings (1-2 nodes) of firm new growth. Apply 0.3% IBA (Rooting hormone) Stick in well drained soil7 mist taking 28-75 days to root

Clematis is one of the few plants that will root anywhere along the stem, but I usually do them near a node anyway. I take 2 node cuttings after they have finished blooming...whenever that happens to be where you live. Remove the bottom set of leaves and dip in rooting hormone powder. Do I understand that you have a rooting tray with a humidity cover? If so you are in business. If not, you will need to invent one...either place little individual pots inside a zip loc bag or place in a deep clear plastic storage container. Use damp potting soil mixed with perlite and mist them if there is no condensation showing inside the cover. Keep them in a light place, but out of direct sun. I recommend individual pots because I have lost them when trying to pot up too soon after rooting.

Look for nice fat mature buds in the leaf axils for a cutting location on the vine. It should be this years growth. You can cut away part of the top leaflet if it is too long.

Thank you so much! There are buds on my plant now, so I guess I'll try as soon as they have gone by.

The reason to wait is to insure that the buds will mature enough to grow. I read a "rule of thumb" thing that said to test by bending to see if a shoot will snap or bend. If it snaps, it is mature enough and that is where you need to make your bottom cut. Good luck!