Lemon Herb is a holiday-exclusive shaker available during Summer Luau in Papa's Pastaria/To Go!. It is unlocked with Nevada (Pastaria) or Skip (To Go!) when the player reaches Rank 12.
In Papa's Sushiria/To Go!, it is a holiday-exclusive shaker available during Summer Luau. It is unlocked on Day 6 of the holiday.
In Papa's Cheeseria To Go!, Lemon Herb Seasoning is a holiday-exclusive fry topping available during Summer Luau. It is unlocked with Kahuna when the player reaches Rank 11.