Rhodie cuttings? I've never done it before, so I'm testing out layering for one of mine. We'll see how it works! Of course, I don't remember what color this particular plant bloomed. I should really look at the pics from spring.
The time of year is very important to take cuttings because if the cutting roots it must break from its stem into new branches before the frost sets in or it will not survive. We are
at about the end of the time you can expect that new growth. I use a plastic bin with a clear cover. I drill at least 10x 1/2" holes and use a rooting mixture in the bottom 5"of peat and perlite in a 50-50mix. They usually root in about 4-6 weeks and should be brought into a non freezing area like a garage for the Winter. In the Spring after there is no danger of frost, placed in a shady spot where there is no direct sun such as the North or East side of the house until the season is over after 23 years they can be left on their own.