Hi, I think this is quite easy to do ... but as no-one else has replied yet, have a look at this advice
Dr. Malcolm M. Manners
Leaves -- roses
root best if the cutting has some leaves still attached, to provide sugars from photosynthesis as well as root-promoting hormones. Some varieties will root from leafless cuttings, but it's better to allow two or three leaves to remain. Keep a spray bottle of water handy to mist over the cuttings while working on them, to keep them crisp, since wilted cuttings often fail to root.
Cuts and "wounding" -- roses
can form roots at any point along the stem, so the exact site of the cut is not important. Many people "wound" the base of the cutting, either by making 1/2- to 1-inch vertical slits through the bark, or by slicing a strip of bark off one or two sides of the base of the cutting with the clipper blade. Difficult varieties often benefit from such wounding, sending out roots all along the wound.
Rooting hormones -- You can root most rose
varieties without the use of hormone preparations. This is because rose
cuttings contain auxin (indoleacetic acid -- "IAA"), a natural root-promoting hormone. It is produced by the leaves and growing
buds or shoot tips and accumulates at the bottom of a cutting, where the roots will form. But some roses
apparently don't produce adequate supplies of auxin and are difficult to root. If they produce any roots at all, they are few and weak. So, many growers apply a commercial hormone preparation to stimulate the production of strong roots. These products all contain synthetic auxin, usually indolebutyric acid (IBA) and/or naphthaleneacetic acid (NAA).
Moisture -- One of the most important factors in successfully rooting cuttings is maintaining adequate moisture, both in the soil and in the form of humidity in the air. Place the cuttings in pots of moist sand or potting soil, then cover them with a plastic bag, mayonnaise jar or inverted two-liter soft drink bottle with the top cut off, creating a small tent or "greenhouse
" to maintain high humidity around the cuttings.
Light -- roses
root best in bright light. But when using the mini-greenhouse
method, it's important to avoid overheating by giving some shade from hot, midday sun. Put the cuttings in bright shade, such as against the north wall of a building or under a tree, to allow rooting without too much heat build-up.