If you're looking for manga similar to Savage Garden, you might like these titles. All recommendations are made by Anime-Planet users like you!
If you appreciate drama, and liked the basic premise of one manga/manhwa, I think you will like the other.
Both deal with an orphan girl, who through various circumstances ends up at a 19th century English public school. One is at a school for girls, another at a school for boys. These are not comedies, but well drawn, well written character studies.
These are both among my favorite stories and stand out from the field of generic high school romances which Shoujo is littered with. Not that I don't enjoy a good example of those too :)