4/5
Important Note: They are only open on the /first Saturday/ of every month. We were unable to visit, as we weren't aware of this until we arrived, but will definitely be returning and updating this review once we've had the chance to actually enter. The outside, for what it's worth, was EXTREMELY beautiful. The entrance is only accessible from the sidewalk along the main road, so we did circle a couple of times before we realized we'd already passed it.
We wandered around after discovering it was closed and realized their garden, which looked well kept, was full of various plants labeled with their respective taxonomy and medical uses, such as the symptoms and illnesses they were used to treat. Super interesting!! So even though we didn't actually get to see the inside of the museum itself, we found it to be a really cool and educational spot to visit.
The building itself is also quite pretty. It and the grounds are obviously well looked after, and we look forward to the chance to seeing how that care is applied to the curation and upkeep of the museum's (mysterious) interior.
*The only reason for my 4 vs 5 star rating is the fact that I only saw the outside, unfortunately. I will return with the fifth star once I've had the pleasure. Hoping the hours can be updated in some way to reflect the "first Saturday of the month" caveat.*
Edit: The kind people who run the museum have confirmed that their hours are provided in specific detail on their direct site, and unfortunately Google doesn't have a format to support the details of their weekend hours. Looking forward to the first Saturday of my next month in Mobile!