The term "rosé" is "generic," which means that it is not capable of trademark
registration, unless it is used in a manner that transforms it into an "arbitrary" name.
Example: Apple is generic, but Apple Computers is arbitrary, and thus may be trademarked.
Your proposed "tea rosé" is also generic, because both terms are generic and combined they do not indicate any arbitrary use. However, if you have a use that makes it arbitrary, for example, as a brand of perfume (which was actually registered in 1980, but which was abandoned by the manufacturer).
So, the answer here is "yes," you can register your mark, as long as you use it with some product which has no relationship to the two terms. In other words, you can't sell tea, or wine or roses.
Hope this helps.