Diabetes affects our blood vessels and nerves and therefore can affect any part of the body. However, certain parts of our body are affected more than other parts.
I don't think dogwoods have (much?) scent, maybe just lightly floral. The white petally looking things are not actually petals they are bracts, like a poinsettia has. There's something called an English dogwood that is very fragrant, but it isn't a true dogwood and is also known as mock orange. Bradford pears have a smell that this author described as sweaty socks, so if your tree doesn't smell very good that's probably it: http://www.gardenguides.com/106133-dogw ...
How to Plant & Care for a Pink Dogwood Tree. 1  Select an area of the garden for your pink dogwood. 2  Amend the soil, if needed. Dogwoods need slightly acidic, well-drained soil that is rich in organic matter. 3  Soak your tree in a bucket of water for four hours before planting if you've purchased a bare-root dogwood. 4  Dig a hole for your flowering dogwood. The planting hole should be as deep as and twice as wide as the roots of your dogwood.