Interesting, but also very logical. There are numerous chemicals which comprise each scent. Each has various components which oxidize and evaporate at different temperatures and levels of light. There is also a nutrient level component (just as there is with color) which can vary greatly from one plant to the next as well as how the pH of the soil can cause nutrient levels to vary. As variable as organic scents can be, and with as many factors which can force them to vary, it amazes me any two people, in two different places, at differing times can actually smell anything resembling what the other person perceived! But, yes, this rose has a tremendous scent, no matter which elements it decides to provide you when you sniff it.