Roses: I have a beautiful floribunda rosebush that is 7-8 feet tall and just as wide. i have to thin it every year. i deadhead it every day or two and it produces lovely pink flowers that last all summer and smell heavenly. but i have had no luck drying them and keeping the scent. they won’t dry w/o dehydration and the lowest setting i have on my dehydrator is 95 degrees. they look beautiful, but have no smell. do they still have medicinal properties?