 If you liked
Kusuriya no Hitorigoto
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 ...then you might like
Sengoku Komachi Kuroutan: Noukou Giga
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Although the two protagonist's personalities are different, they are both girls obsessive hobbies who get caught up using their talents for political ends.
๐๐๐๐๐ฟ๐ถ๐๐ฎ ๐ป๐ผ ๐๐ถ๐๐ผ๐ฟ๐ถ๐ด๐ผ๐๐ผ and ๐ฆ๐ฒ๐ป๐ด๐ผ๐ธ๐ ๐๐ผ๐บ๐ฎ๐ฐ๐ต๐ถ ๐๐๐ฟ๐ผ๐๐๐ฎ๐ป: ๐ก๐ผ๐๐ธ๐ผ๐ ๐๐ถ๐ด๐ฎ take place in a historical setting. Both of them have a main female character who adept in plant life for their respective field and love to help others.
If you enjoy reading these two mangas and want to dive more, both also adapted from ongoing novels.