Know every herb on your pho side plate — Thai basil, perilla, rau ram, culantro and more. 9 herbs identified by sight, with US grocery sources and subs.

A bowl of phở arrives half-built. The second half is on the side plate — a pile of fresh herbs, bean sprouts, lime wedges, and chilies that the diner adds in their own order and quantity. Most Westerners pick a few familiar leaves and ignore the rest. Each herb on that plate does specific work. This guide identifies every leaf, names its job, and tells you where to find it in US groceries.
Vietnamese cooking is the only major Asian cuisine that treats raw aromatics as a course component rather than a garnish. Thai cooks bruise lemongrass and steep it into the broth. Chinese cooks fold scallion and cilantro into the wok. Japanese cooks place toppings on the bowl in a precise pattern that's not meant to be rearranged. Vietnamese cooks send you herbs raw and whole on a separate plate, and they expect you to be the one who deploys them. The herb plate is not decoration — it's the diner's half of the recipe.
| Herb | Vietnamese Name | Use | Substitute |
|---|---|---|---|
| Thai basil | Húng quế | Anise-sweet brightness | Italian basil (close enough) |
| Cilantro | Ngò rí | Citrus-grassy lift | None — use parsley reluctantly |
| Mint (spearmint) | Bạc hà | Cool, sweet, palate cleanse | Regular mint |
| Perilla | Tía tô | Earthy, slightly bitter, anise notes | None — skip if unavailable |
| Vietnamese coriander | Rau răm | Peppery, sharp, often in chicken phở | None — distinct flavor |
| Culantro / sawtooth herb | Ngò gai | Stronger version of cilantro | Cilantro + bay leaf |
| Bean sprouts | Giá đỗ | Cold crunch, texture contrast | None |
| Lime wedges | Chanh | Acid to brighten broth | Lemon, but worse |
| Thai chili | Ớt | Heat | Jalapeño or serrano |
A working visual decoder if you're staring at an unmarked herb plate at a Vietnamese restaurant:
Once you can identify these on sight, you can build the right plate at any Vietnamese grocery without asking for English labels.
The traditional Vietnamese order for adding herbs to phở:
Don't add everything at once. Each herb has a different cooking time in the broth, and timing the additions changes the bowl significantly.
Some herbs are mainstream in Vietnam but rare in US grocery stores. Where to find them:
If you can only find Western mainstream herbs, Thai basil + cilantro + mint + lime gets you 80% of the way to a Vietnamese-grade plate.
Most Vietnamese herbs grow well in US climates. Thai basil, mint, perilla, and Vietnamese coriander all do fine in containers on a sunny windowsill or balcony. Many Vietnamese-American households grow their own — and once you do, you stop noticing the difference between restaurant phở and homemade.
Seed sources:
The same plate doesn't appear with every Vietnamese dish. Each noodle has its expected herb companions:
If a restaurant sends the same generic Thai-basil-and-sprouts plate with every bowl regardless of dish, the kitchen is cutting corners.
Watch a Vietnamese family at a phở shop and the herb plate disappears fast. The technique:
The shape of a properly eaten phở: clear at the start, brightening with lime and herbs at the middle, hot and aromatic at the end as the chili enters.
The presence of an herb plate is the diagnostic sign of a real Vietnamese restaurant. Cheap pan-Asian restaurants skip it (or send a sad scoop of bean sprouts and lime). Real Vietnamese restaurants send a generous plate that's bigger than it needs to be.
If your bowl of phở comes without a side plate, you're at a Vietnamese-themed restaurant, not a Vietnamese restaurant. Take note.
The herb plate is not a garnish — it's the second half of the dish. Lime first, bean sprouts next, Thai basil torn in, mint and cilantro at the end, chili to taste. The bowl arrives at half-finished; you finish it at the table. That hand-off is the Vietnamese cooking philosophy in miniature.