How to Transplant Lemongrass: Root-Bound Revival for Year-Round Growth

Transplanting lemongrass when it gets root-bound keeps it thriving for years—here’s how to do it right. 🌿 The secret lies in timing, gentle root handling, and giving it the perfect new home. I’ve moved mine twice, and now it grows so vigorously I harvest stalks year-round.

Start by trimming congested roots with clean scissors, then plant in well-draining soil with partial shade for the first week. Water deeply but avoid soggy soil, and you’ll see fresh growth within days. Even beginners can master this—just follow the simple steps below for stress-free results.

What you need

Step-by-Step instructions for transplanting lemongrass

Reviving root-bound lemongrass is simpler than you think—just follow these precise steps.

Lemongrass thrives in well-draining soil with full sun exposure (6+ hours daily). Choose a spot with 60-70°F daytime temperatures—too cold, and growth slows dramatically. If transplanting into a container, select one that’s at least 12 inches deep and 18 inches wide for each plant (lemongrass roots spread aggressively).

Loosen the soil to a depth of 8-10 inches with a garden fork or trowel. Mix in 2-3 inches of compost to enrich the soil—lemongrass is heavy-feeding and rewards fertile ground. Avoid fresh manure; it can burn the roots. For containers, use a premium potting mix blended with 20% perlite to prevent compaction.

Water the lemongrass 24 hours before transplanting to reduce stress on the roots. Gently grasp the base of the plant and lift it from the soil—if it resists, use a knife to loosen the edges of the root ball. Shake off 50% of the old soil to inspect the roots; healthy roots should be white or pale yellow, not brown or mushy.

Trim any circular, tightly bound roots (a sign of root-bound stress) with clean pruning shears. Focus on the outermost roots—lemongrass recovers quickly from pruning. If you see blackened or slimy roots, rinse them in lukewarm water and trim those sections immediately. This prevents rot from spreading during transplant.

Dig a hole twice as wide as the root ball but no deeper—lemongrass roots need room to spread horizontally. Position the plant so the base of the stalks sits at soil level (burying too deep causes rot; planting too high stresses the plant). Gently backfill with soil, pressing lightly to eliminate air pockets but avoiding compaction.

For containers, place a 1-inch layer of gravel at the bottom for drainage, then add soil up to 1 inch below the rim. Water deeply until moisture seeps from the drainage holes—this settles the soil and removes air gaps. Mulch with 2 inches of organic mulch (like straw or shredded leaves) to retain moisture and regulate soil temperature.

Water the transplanted lemongrass every 2-3 days until new growth appears (usually 7-10 days). Check soil moisture by sticking your finger 1 inch deep—water when it feels dry. Avoid overhead watering; direct moisture to the base of the plant to prevent fungal diseases like leaf spot.

Watch for new shoots emerging from the base—this confirms the plant is establishing roots. If the stalks wilt slightly, it’s normal; lemongrass recovers quickly once roots rehydrate. After 4-6 weeks, fertilize with a balanced liquid fertilizer (10-10-10) diluted to half-strength to encourage robust regrowth.

Once the lemongrass reaches 12-18 inches tall, trim the stalks back by one-third to encourage bushier growth. Use clean, sharp pruners to cut just above a leaf node (the bump where leaves attach). Avoid cutting into woody stems—lemongrass regrows best from the leafy top.

In colder climates, protect lemongrass from frost by moving containers indoors or covering outdoor plants with burlap sacks. Lemongrass is tropical and won’t survive below 40°F—even a light frost kills the plant. If you’re growing in a pot, bring it inside near a south-facing window or under grow lights for the winter. Resume outdoor care in spring once temperatures stabilize above 55°F.

Tips & tricks for perfect lemongrass transplanting

Here's what nobody tells you about giving your lemongrass the second life it deserves.

Soil Preparation Secret: The 2-3 inches of compost we mentioned in Step 1 isn't just for show—it's the difference between a struggling transplant and a thriving one. For containers, I recommend mixing in an extra 10% worm castings with that premium potting mix. The microbial activity in castings helps roots establish faster, especially during the critical 7-10 day recovery period mentioned in Step 4.

Root Inspection Technique: When you're shaking off that 50% of old soil in Step 2, take an extra 30 seconds to gently separate the roots with your fingers. Look for any roots growing in tight circles—they're like the plant's version of a stress fracture. These circular roots need to be completely severed with your pruning shears. I've seen plants that looked healthy on the outside but had these tight root spirals, and they struggled for weeks to recover.

Temperature Timing: The 60-70°F range mentioned for optimal growth isn't just about daytime temps—it's about the entire environment. If your nighttime temperatures drop below 65°F, consider using a small greenhouse tent or even a clear plastic bottle (cut in half) over your newly transplanted lemongrass for the first week. This creates a microclimate that maintains those crucial root zone temperatures while you wait for those new shoots to appear.

Winter Survival Strategy: For that 55°F threshold mentioned in Step 5, here's my pro move: I actually bring my containers indoors when temps consistently drop below 60°F, not just 55°F. The sudden temperature swings between day and night can be just as damaging as the cold itself. Place your lemongrass near a bright window where it gets at least 4-5 hours of indirect sunlight daily—this mimics its tropical needs while protecting it from the cold.

Frequently asked questions

Got questions about transplanting lemongrass? You’re not alone! Here are some of the most common concerns—and their straightforward solutions to keep your lemongrass thriving.

When is the best time to transplant lemongrass?

Transplant lemongrass in spring or early summer when temperatures are warm (above 60°F) and the plant is actively growing. Avoid transplanting during extreme heat or frost, as stress can weaken the plant. If you’re in a tropical climate, late summer or early fall can also work!

How long does it take for lemongrass to recover after transplanting?

Lemongrass typically takes 2–4 weeks to adjust to its new home. You’ll notice new growth in about 3–6 weeks, but avoid harvesting until the plant looks fully settled. Patience is key! If leaves turn yellow, it’s just part of the adjustment—keep it watered and shaded for a few days.

Can I transplant lemongrass from a grocery store bunch?

Yes, but it’s hit or miss. Grocery lemongrass is often treated to prevent sprouting. Try soaking the root end in water for 24 hours to encourage growth, then plant it in moist soil. For better success, buy a potted lemongrass plant from a nursery instead!

What if my lemongrass leaves turn brown after transplanting?

Brown leaves usually mean transplant shock or overwatering. Let the soil dry slightly between waterings and ensure the pot has drainage holes. If only the tips brown, trim them off—it’s a sign the plant is stressed but not necessarily dying. Mulch lightly to retain moisture without suffocating roots.

Can I grow lemongrass in containers, or does it need a garden?

Lemongrass thrives in containers! Use a pot at least 12–18 inches deep with drainage holes. Choose a well-draining potting mix, and place the container in full sun (6+ hours/day). Just repot every 1–2 years to refresh the soil and roots.

Wrapping up and next steps

Transplanting lemongrass is your ticket to a thriving, year-round harvest—just follow these simple steps! 🌱 With the right tools, a little patience, and a sunny spot, you’ll soon be enjoying fresh lemongrass for cooking, teas, or even homemade remedies.

The key is timing, gentle handling, and consistent care—your plants will thank you with lush, fragrant growth.

Now that you’re ready to dive in, why not take the next step? Share your progress with fellow gardeners, experiment with companion plants, or even propagate more lemongrass from your thriving clumps. Happy growing—your kitchen (and taste buds) will love you for it! 🌿✨