April: This is a good chart for those that plant flowers for bees. These flowers are non-GM (so far). I also provide links to articles on GM flowers currently in the lab. Bees are a vital component to our survival: GM pollens could be partly to blame for CCD (Colony Collapse Disorder). Help the bees: plant for them as well as your nose!
GM flowers for better scent: http://singularityhub.com/2010/02/24/genetically-modified-flowers-that-can-smell-like-anything-coming-soon/
Trends in plant science: http://www.finegardening.com/pages/g00094.asp