The dish is garnished with ingredients such as green onions, white onions, coriander leaves (cilantro), ngò gai (culantro, or long coriander), Thai basil, lemon or lime wedges, and bean sprouts. The last five items are usually provided on a separate plate, which allows customers to adjust the soup's flavor as they like. Some sauces such as hoisin sauce, fish sauce, and the Thai hot sauce Sriracha, are popular additions as well. The herb ngò ôm (Limnophila aromatica) is sometimes added as well.
For the phở connoisseur, other garnishes which may be ordered on the side include hành trần (the white "bulb" portion of scallions, blanched in boiling broth) and hành giấm (sliced white onions with a dash of vinegar). These are only brought to the table when specifically requested, as opposed to the general platter of greens and lime wedges. The diner typically squeezes a few drops of lime juice onto the vinegared onion slices before eating them. The hành trần and hành giấm, when eaten with the beef slices, are believed to cut the fattiness and balance the strong beef aroma that some find overpowering.
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