These cuttings were unwrapped June 11 after being held for their two week callus period. I'd wrapped two different China roses and Shadow Dancer. All of the Shadow Dancer hung on until it got hot, then they collapsed. All but two of the one variety of China rose have turned black and failed. Of the remaining two, one is beginning to push a few small leaves. The other is just sitting there....
The second variety of China rose has had about a 50% success rate. These photos were shot about an hour ago.
I know part of the reason for such a failure rate is the very high heat we've experienced since the cuttings were unwrapped. I don't have a greenhouse, nor have I attempted to create anything special for them to mature in. I wanted to determine if this was a viable method of propagation for anyone to use without any special equipment. Though it appears to be one most suited for those which are easier to root, at least when the weather is hotter, I think it's shown itself to be very worthwhile. It is easy, straight forward, requires nothing special and really only requires special tweaking to make carrying them on from the unwrapping to rooted plant possible for your specific climate and situation variables.
It DOES work better when the weather is cooler, though it CAN also work when it's hotter. Definitely worth a try and some experimenting to make it fit your situation.