I'd like to press some edible flowers onto a cheesecake I will be making. I'll need some sort of a glaze, and my first instinct was egg whites, but then I learned that those tend to brown, which is why they're mostly used for bread and pastries. I then looked into clear cake glazes, and all of them used a thickening agent such as gelatin or corn starch, but I don't want a very noticeable glaze, I just want something that'll keep the flowers pressed to the surface of the cake without being too sticky.
Would just sugar and water (and possibly a bit of rosewater) work as a glaze?