Lemongrass seeds

Bring That Bright, Citrusy Thai Kitchen Aroma Right into Your Backyard — Lemongrass Seeds

You know that smell when you walk into a really good Thai restaurant? That bright, clean, citrusy-herbal thing that hits you before you even sit down? Nine times out of ten, that's lemongrass. And once you realize you can grow it yourself — like, feet from your kitchen door, in a pot on your patio, pulling fresh stalks whenever you want — buying those sad, dried-out lemongrass sticks from the grocery store for three bucks a pop starts feeling genuinely offensive. Homegrown lemongrass is juicy, fragrant, alive. You snap a stalk off the plant and the scent just explodes. It's lemon, it's ginger, it's green and bright and clean and unlike anything else in your herb garden. Nothing at the store even comes close.

At SeedOrganica, we carry fresh, quality-tested lemongrass seeds for home gardeners and home cooks who want the real deal growing right outside. Lemongrass (Cymbopogon citratus) is a tropical grass that's been central to Southeast Asian, Indian, and Caribbean cooking for centuries, and it grows shockingly well across a huge chunk of the USA — as a perennial in warm zones, and as a gorgeous, fragrant annual or potted plant everywhere else. It's fast-growing, low-maintenance, naturally pest-resistant, and drop-dead gorgeous in the garden with those tall, graceful, fountain-like clumps of arching leaves. Whether you cook Thai, Vietnamese, or Indian food regularly, make your own herbal teas, want a stunning ornamental grass that also happens to be delicious, or just crave that citrusy fragrance wafting through your yard on summer evenings, lemongrass seeds for planting are about to change your entire gardening and cooking life. No exaggeration. This plant is a lifestyle upgrade.

Explore Our Lemongrass Seed Varieties

When most people say "lemongrass," they're thinking of one specific thing — that thick, pale stalk used in tom yum soup. But the Cymbopogon genus actually includes several species with different fragrance profiles, growth habits, and culinary uses. Our collection covers the main types so you can pick the lemongrass that matches what you're after — whether that's cooking, tea, fragrance, or all of the above.

Cymbopogon citratus (West Indian Lemongrass) is the culinary king — the one used in Thai, Vietnamese, Indonesian, Malaysian, and Indian cooking. This is the species that produces those thick, bulbous stalks with the swollen white-to-pale-green base that's the edible part used in soups, curries, stir-fries, and marinades. The flavor is intensely citrusy — bright lemon with undertones of ginger and a subtle herbal sweetness — and the fragrance is just as bold. In the garden, West Indian lemongrass forms dense, fountain-shaped clumps of narrow, arching leaves that can reach three to five feet tall in a single growing season. The whole plant is aromatic — brush against it and your hands smell incredible for an hour. This is the species most gardeners want when they say they want to grow lemongrass, and for good reason. It's the culinary standard, the tea standard, and the fragrance standard all rolled into one beautiful grass. If you're only growing one lemongrass, make it this one.

Cymbopogon flexuosus (East Indian Lemongrass / Cochin Grass) is the sister species that's equally aromatic but with a slightly different growth habit and use profile. East Indian lemongrass produces thinner, less bulbous stalks compared to West Indian — the base doesn't swell into that thick, fleshy stalk the way citratus does. Because of this, it's used more for its leaves (in teas and infusions) and for essential oil extraction than for cooking with the stalk. The fragrance is very similar — bright, clean, lemony — but some people describe it as slightly more complex, with a faintly rosy or floral undertone mixed with the citrus. The plant itself is generally taller and more upright than West Indian lemongrass, sometimes reaching four to six feet. If you're growing lemongrass primarily for tea or for the incredible scent in the garden, East Indian is a fantastic choice. It also tends to be slightly more cold-tolerant than its West Indian cousin, which is a nice bonus for gardeners in borderline zones.

Cymbopogon nardus (Citronella Grass) — yes, this is a lemongrass relative, and yes, it's the plant that citronella oil comes from. The fragrance is distinctly different from culinary lemongrass — stronger, more pungent, with a sharper, almost woody-citrus character that's less sweet and more functional. Citronella grass is primarily grown for its aromatic properties rather than culinary use. A big clump of it growing near your patio or seating area fills the air with that familiar citronella scent that many people associate with outdoor summer evenings. It's a beautiful ornamental grass in its own right — tall, dense clumps of blue-green leaves that sway gracefully in the breeze. Not something you'd toss in your soup, but absolutely something you'd want growing near where you sit outside. And it looks gorgeous next to the culinary lemongrass varieties — similar growth habit, different fragrance, complementary garden presence.

Lemongrass 'Thai' Selection is a culinary selection of Cymbopogon citratus that's been specifically chosen for fat, tender stalks with intense flavor — the stuff that shows up in authentic Thai cooking. The base of each stalk is plumper and juicier than the standard species, with a more concentrated lemon-ginger punch that's ideal for pounding into curry pastes, slicing into soups, and infusing into broths. If you cook Southeast Asian food regularly and you're particular about stalk quality, this selection is worth seeking out. The plants are vigorous, fast-growing, and produce thick clumps quickly — you'll have more stalks than you can use by midsummer, which is exactly the kind of problem you want to have.

Lemongrass Seed Mix — for gardeners who want to try a range of lemongrass types without committing to just one. Our mix includes seeds from multiple Cymbopogon species, giving you a diverse planting with slightly different fragrances, growth habits, and uses. It's the best option if you're new to growing lemongrass and want to experiment, or if you just love the idea of a whole corner of your garden dedicated to different lemony grasses swaying in the summer breeze. The visual effect of a mixed lemongrass planting is stunning — varying heights, slightly different leaf widths and colors, and a complex, layered citrus fragrance that changes subtly depending on which clump the wind blows across. It's basically aromatherapy gardening.

Growing both the culinary and the aromatic types together is the power move. West Indian lemongrass by the kitchen for cooking, East Indian for drying into tea blends, and citronella grass near the patio for ambiance and scent. Three different plants, three different purposes, one gorgeous tropical-looking garden corner that smells like heaven. That's the kind of setup that makes you wonder why everyone doesn't do this.

Gardening Insights for Growing Lemongrass from Seed

Let's be upfront about something — growing lemongrass from seed takes a little more patience than propagating it from store-bought stalks (which is the more common method most people hear about). Seeds are slower to germinate and the seedlings grow at their own pace for the first few weeks. But starting from seed gives you access to more species and varieties, lets you grow way more plants for way less money, and produces plants with strong, well-developed root systems that are really well-adapted to your specific conditions. It's the long game, and it pays off. Here's how to do it right.

Sunlight: Full sun. All the sun. Lemongrass is a tropical plant — it comes from hot, humid, sun-drenched regions of South and Southeast Asia, and it wants as much direct sunlight as you can give it. Minimum six hours daily, but eight or more is where you'll see the fastest, most robust growth. In less than six hours of sun, lemongrass grows thin, weak, and produces stalks that are spindly and lacking in flavor and fragrance. A south-facing spot that bakes all day? Perfect. Against a sunny wall that radiates heat? Even better. This is a plant that thrives in conditions that would wilt a lot of other herbs. Heat is its friend. Give it the hottest spot in your yard and it'll love you for it.

Soil: Rich, well-draining, slightly acidic to neutral soil (pH 5.5 to 7.0). Lemongrass is a relatively heavy feeder — it grows fast and puts on a lot of biomass in a single season, so it needs fuel. Amend your soil generously with compost before planting. Loamy soil with good organic matter content is ideal. Sandy soil works too if you add compost for nutrient retention. Heavy clay is the one to watch out for — lemongrass doesn't do well in waterlogged conditions, so if your soil is clay-heavy, lighten it up with compost, perlite, or coarse sand, or go with raised beds or containers. Good drainage is important, but so is consistent moisture — lemongrass likes soil that's evenly moist but not soggy. It's a balance. Think "wrung-out sponge" — damp but not dripping.

Starting from seed: Here's where patience comes in. Lemongrass seeds are small and can be slow to germinate — anywhere from seven to twenty-one days, sometimes longer if conditions aren't ideal. Start seeds indoors about eight to ten weeks before your last frost date. Sow seeds on the surface of moist, fine seed-starting mix — don't bury them deeply, just press them lightly into the surface and barely cover with a fine dusting of vermiculite or mix. They need some light and consistent warmth to germinate.

Temperature is critical — keep the soil at 70 to 75°F for best germination. A heat mat under the seed tray makes a huge difference here. Lemongrass seeds in cool soil will sit there for weeks doing absolutely nothing. Warm soil wakes them up. Cover the tray with a clear humidity dome or plastic wrap to maintain moisture, and mist the surface regularly so it never dries out. Place in bright, indirect light — not direct blazing sun, which can overheat the covered tray.

Once seedlings emerge, they look like tiny grass blades — wispy, thin, and delicate. Don't freak out. They're small but tough. Remove the humidity cover gradually, keep the soil moist, and provide strong light — a grow light positioned a few inches above the seedlings for twelve to fourteen hours daily produces the strongest, stockiest little plants. The seedlings grow slowly at first — this is normal for a tropical grass. By the time they're about four to six inches tall with a few leaves, they're ready to be potted up into individual containers if they were started in trays.

Transplanting outdoors: Don't move lemongrass outside until all danger of frost is long gone and nighttime temperatures are consistently above 55°F — ideally 60°F or warmer. Lemongrass has zero frost tolerance. Not even a little. A single cold night can set it back dramatically or kill it outright. For most of the USA, that means transplanting in late May to June. In warm zones 9 through 11, you can go earlier. Harden off seedlings for a week or two before planting out — gradually expose them to outdoor conditions, increasing their time outside each day. Space plants about twenty-four to thirty-six inches apart — they get big and need room to spread into thick clumps.

Watering: Lemongrass likes consistent, generous moisture — this is a tropical plant that naturally grows in humid, well-watered environments. Water deeply and regularly, especially during hot weather. Unlike Mediterranean herbs that prefer dry conditions, lemongrass wants to stay hydrated. An inch or more of water per week is a good baseline, but in peak summer heat you may need to water more frequently, especially container-grown plants. Mulching around the base with straw, wood chips, or shredded leaves helps retain moisture and keeps roots cool. The one thing you don't want is standing water — good drainage prevents the roots from rotting even though the plant likes to drink a lot. It's the tropical plant paradox: give it lots of water, but make sure it drains.

Feeding: Lemongrass is a hungry grass. Feed every three to four weeks during the growing season with a balanced organic fertilizer or compost tea. Nitrogen-rich fertilizers encourage lush leaf and stalk growth, which is exactly what you want with lemongrass. Fish emulsion, blood meal, or a nitrogen-heavy organic fertilizer are all good options. Container-grown plants need more frequent feeding since nutrients wash out of pots with regular watering — every two to three weeks with liquid fertilizer keeps them growing strong.

Harvesting: Start harvesting stalks once your clump is well-established and has multiple thick stalks — usually about three to four months after transplanting, though this varies. To harvest, grab a stalk near the base and twist it off the clump, or cut it at soil level with a sharp knife. The edible part for cooking is the bottom four to six inches of the stalk — the pale, bulbous base where the leaves are tightly wrapped. Peel off the tough outer layers until you get to the tender, pinkish-white core. That's the good stuff. The upper green leaves aren't used in cooking directly (they're too fibrous), but they're fantastic for making tea — just chop them roughly, steep in boiling water for five to ten minutes, and strain. You can also dry the leaves for tea later. Regular harvesting encourages the clump to produce new stalks, so don't be shy about taking what you need. A healthy, well-fed lemongrass clump produces way more stalks than most home cooks can use.

Overwintering: This is the big question for gardeners outside the tropics. In zones 10 and 11, lemongrass is a perennial that grows year-round. In zone 9, it's borderline — it may survive mild winters with heavy mulching but can die back in hard freezes. In zones 8 and colder, lemongrass won't survive winter outdoors. You've got two options: treat it as an annual and start fresh from seed each spring, or — the better option — dig up the clump in fall, pot it up, and bring it indoors for winter. Keep it in a bright window or under grow lights, water sparingly (just enough to keep the roots alive — the plant will go semi-dormant), and move it back outside after the last frost in spring. It'll wake up and start growing vigorously again once the heat returns. Some gardeners also take a few stalks indoors and root them in water over winter as backup insurance — lemongrass propagates easily from stalk cuttings placed in a jar of water on a sunny windowsill. By spring, you'll have rooted plantlets ready to go back in the ground. It's actually a really clever system once you get the hang of it.

Pest and disease resistance: One of the most underappreciated things about lemongrass is that basically nothing messes with it. The strong citral content in the plant — the same compound responsible for that incredible lemon scent — naturally repels most common garden pests. Aphids, whiteflies, mosquitoes, even some larger critters tend to avoid it. Fungal diseases are rare as long as you've got decent drainage and aren't overwatering. In years of growing lemongrass, I've honestly never had a pest or disease problem with it. It's one of those plants you can plant and forget about (except for watering and harvesting, obviously). No sprays, no treatments, no drama. Just a big, beautiful, fragrant grass that takes care of itself.

Frequently Asked Questions