Basil in South Carolina Thai Cooking: Varieties, Where to Find Them, and How to Use Them

Three types of basil show up in South Carolina Thai restaurants, and they taste nothing alike

Thai basil, holy basil, and sweet basil are three different plants with three different flavors, and most Thai dishes call for one specific kind. Thai basil has a licorice-like bite with a hint of pepper. Holy basil tastes sharper and more medicinal, almost minty. Sweet basil—the kind most American grocery stores carry—is mild and floral by comparison. When a Thai restaurant menu says "basil" without specifying which one, it almost always means Thai basil or holy basil, depending on the dish and the chef's sourcing.

If you're cooking Thai food at home in South Carolina, knowing which basil goes where matters. A pad krapow gai (chicken with basil) made with sweet basil tastes flat and wrong. The same dish made with Thai basil or holy basil tastes bright and alive. Most Thai restaurants in South Carolina source their basil from Asian markets in Columbia, Charleston, or Greenville, or grow it themselves in warmer months. Home cooks have the same options, plus mail order.

Key Takeaways

• Thai basil and holy basil are the two basils used in authentic Thai cooking; sweet basil (the supermarket kind) is not a substitute.
• Thai basil has a peppery licorice flavor and appears in stir-fries and curries; holy basil tastes sharper and medicinal and is often used in braises and soups.
• South Carolina Asian markets in Columbia, Charleston, and Greenville carry fresh Thai and holy basil year-round, usually in the produce section near other Asian herbs.
• Growing Thai or holy basil at home is possible in South Carolina from late spring through early fall, though both plants prefer warm weather and consistent moisture.
• Dried basil loses much of its character and is not recommended for Thai cooking; frozen basil works better if fresh is unavailable.

Where to buy Thai and holy basil in South Carolina

Asian markets are your most reliable source. In Columbia, H Mart (multiple locations) and Lucky Supermarket stock both Thai and holy basil in their produce sections year-round. In Charleston, New Hua Sheng Supermarket on King Street and Lee's Market carry fresh Thai basil regularly. Greenville's Lotte Plaza Market stocks both varieties. Prices run between $1.50 and $3 per bunch, and the herbs are usually sold in small plastic clamshells or loose bunches.

Call ahead during winter months. Thai and holy basil are warm-weather crops, and supply tightens from November through March. Some markets grow their own or source from local growers in warmer months, which means availability and freshness vary. A quick phone call saves a trip.

If your local Asian market doesn't carry them, ask the produce manager. Many will order basil for regular customers, sometimes with a day or two's notice. Whole Foods and Harris Teeter occasionally stock Thai basil in their specialty produce sections, though selection is inconsistent and prices are higher—usually $4 to $6 per package.

How to tell Thai basil from holy basil at the market

Thai basil has thin, narrow leaves and purple-tinged stems. The leaves are smaller and more delicate-looking than sweet basil. Holy basil has broader, slightly fuzzy leaves and often shows purple or reddish tones on the stems and leaf edges. Both smell strong and aromatic when you brush the leaves, but Thai basil smells peppery and licorice-forward, while holy basil smells more herbal and sharp.

If the label doesn't say which one it is, ask the produce person or another shopper who speaks Thai or Vietnamese. Most Asian market staff can identify them instantly. When you're starting out, buying from a market where staff speak Thai or Vietnamese reduces the chance of a mix-up—they're used to customers asking for specific basils and know the difference.

Using Thai basil and holy basil in cooking

Thai basil goes into stir-fries, curries, and pad krapow (basil stir-fries). Add it at the very end of cooking, just before serving. Heat wilts it quickly, and cooking it too long destroys the peppery flavor. A typical pad krapow gai uses a full bunch of Thai basil—roughly a cup of leaves—for four servings of chicken and sauce.

Holy basil appears in braises, soups, and some curries, especially in central and northeastern Thai cooking. It holds up better to longer cooking than Thai basil does, so you can add it earlier in the process. Many Thai soups add holy basil in the last minute or two, the way Thai basil is used, but some recipes simmer it longer.

Both basils are best used fresh. Dried basil loses most of its character and is not worth buying for Thai cooking. If fresh basil is unavailable, frozen works better than dried—some Asian markets sell frozen Thai basil in small packages—but fresh is always preferable. Store fresh basil in a glass of water on the counter, like a bouquet, rather than in the refrigerator. It lasts three to five days this way.

Growing Thai and holy basil at home in South Carolina

Both plants grow well in South Carolina from late May through September. They need full sun (at least six hours daily), warm soil, and consistent moisture. Start seeds indoors in April or buy seedlings from nurseries in May. Plant them in pots or garden beds once nighttime temperatures stay above 50 degrees.

Thai basil and holy basil are more finicky about cold than sweet basil. A single frost kills them. They also prefer slightly more water than sweet basil and don't tolerate drought as well. Pinch off flower buds as they appear to encourage leaf growth. You can harvest leaves once the plant has six to eight leaves, and regular harvesting keeps the plant bushy and productive.

In South Carolina's heat, both plants thrive through summer but slow down in late August and September as days shorten. By October, they're done for the year. If you want basil year-round, grow sweet basil indoors under grow lights during winter—Thai and holy basil are too demanding for most indoor setups.

Substituting basil in Thai recipes

If you cannot find Thai basil or holy basil, the next-best option depends on the dish. For pad krapow and other stir-fries, sweet basil is the closest substitute, though the flavor will be milder and less peppery. Use the same amount and add it at the end of cooking. The dish won't taste exactly right, but it will still be good.

For soups and braises that call for holy basil, sweet basil works in a pinch, but some cooks add a tiny pinch of anise seed or fennel to approximate the sharper, more medicinal quality. This is not traditional, but it moves the flavor closer to what the recipe intends.

Mint is sometimes suggested as a substitute, but it changes the dish in a different direction. Use it only if you're comfortable with a noticeably different flavor profile. The best approach is to plan ahead and source the right basil from an Asian market before you cook.

Frequently Asked Questions

Can I use the sweet basil from my grocery store for Thai cooking?

You can, but the dish won't taste right. Sweet basil is much milder and lacks the peppery, licorice quality that defines Thai basil or the sharp, medicinal edge of holy basil. If you're making pad krapow or a curry and only have sweet basil, use it and accept that the flavor will be different. For future cooking, plan to source the correct basil from an Asian market.

How long does fresh basil last after I bring it home?

Fresh Thai or holy basil lasts three to five days when stored in a glass of water on the counter, like cut flowers. Refrigerating it shortens its life. Don't wash it until you're ready to use it. If you need basil to last longer, freeze whole sprigs in a freezer bag—they'll keep for a few months, though texture suffers.

What's the difference between Thai basil and holy basil?

Thai basil has thin, narrow leaves and a peppery licorice flavor. Holy basil has broader, slightly fuzzy leaves and tastes sharper and more medicinal. Different Thai dishes call for different basils. Pad krapow typically uses Thai basil, while some soups and braises use holy basil. Both are authentic; the recipe determines which one to use.

Do South Carolina nurseries sell Thai basil or holy basil seedlings?

Some do, especially in spring and early summer. Call local nurseries in May and June to ask. If they don't carry them, they may be able to order seeds for you. Growing from seed indoors in April gives you plants ready to transplant by late May, when the soil is warm enough.

Can I order Thai basil online and have it shipped to South Carolina?

Yes. Several seed companies and specialty produce retailers ship Thai basil seeds and seedlings to South Carolina. Shipping costs are high relative to the product, so this works best if you're ordering other items at the same time. Check shipping dates—seeds should arrive early enough for you to start them indoors in April.