What Is Sourwood Honey? Uses, Nutrition And Benefits
What I believe is a good summary of Sourwood honey and it's qualities - and why it is more expensive than most other honey, can be found here.
NC supports labeling honey as sourwood as long as it is greater than 51% sourwood. Fortunately, most beekeepers I know require a higher concentration of sourwood before labeling it as such. How high a percentage varies from beekeeper to beekeeper. Get to know and trust your local beekeeper - and your taste buds.
2020 was a good year for sourwood. The quality and volume were very good in the areas I have apiaries. In general, many beekeepers I know have expressed the same. Get it while you can!