Hey, yeah!
I'm glad there is some interest in this different kind of "rune". I made up an Ogham title for rose (I said so in my last post, but that got deleted, oh well!). Since the rose & the apple are so closely related, especially considering the old-time varieties of each - European apples were like largish crab-apples - I believe that they would have been considered the same kind of tree by the Druids, from what I know of their world- & tree-view. So I call the rose "Quert Beag", or plural "Quertan Bheag", "little apple". There - now all I need is the rune! Maybe just a very small "quert"?