Ornamental kale - It is really a foliage material, but takes on the shape of a big blossom. Whether it's entirely green, in variegated green with cream, or with purple, it is flexible to take on a bucolic or a modern appearance.
Solstice Flower Crown by Mintandmelonboutique on Etsy
Gorgeous. Would like peonies or hydrangeas rather than roses, I think
Image from http://www.theswishlist.com/images/real_weddings/cathymartinflowers-hellebores-sweetpea-jasmine-tuberose.jpg.