is this a tropical hibiscus in a pot, or a rose mallow herbaceous perennial type? I've not found the latter to have much flavor, though I grow some for their awesome dinner-plate sized blooms.
I have liked the dried tropical blossoms I bought from Olive Nation, fwiw. I put some in a mead not long ago. People swear there is a bit of raspberry, rhubarb, and especially cranberry in there!