I have taken Rose cuttings, put them in good garden soil, covered them with a glass liter sized jar and kept them moist and had them root, it is pretty simple to do. This article may be of some help.

Here is a link that might be useful: Rooting Rose cuttings

Thanks kimmsr, but i am asking about this particular variety known as Double delight.

Regards,

Mani

It makes no difference which cultivar of "rosa" you are trying to root, the process is the same.