Kansas gardeners should wait until soil temperatures consistently reach 65°F, typically in mid-to-late May, before setting out lemongrass. Knowing the best time to plant lemon grass in kansas can mean the difference between a thriving harvest and a disappointing patch. This guide covers everything you need to know for successful lemongrass planting in the Sunflower State.
Lemongrass loves heat and hates frost. Kansas weather can be unpredictable, with late spring cold snaps. So timing is everything.
Best Time To Plant Lemon Grass In Kansas
The short answer is: plant lemongrass outdoors after the last frost date, when nights stay above 50°F. For most of Kansas, that means mid-May to early June.
But let’s break it down by region and method.
Eastern Kansas Planting Window
Eastern Kansas, including Kansas City and Lawrence, has a slightly milder spring. The last frost usually occurs around April 15-20. However, soil takes time to warm up.
- Start seeds indoors: 6-8 weeks before last frost (late February to early March)
- Transplant outdoors: Mid-May, after soil hits 65°F
- Direct sow: Not recommended, but if you try, wait until late May
Central Kansas Planting Window
Central Kansas, including Wichita and Salina, experiences a more continental climate. Last frost typically falls between April 20-30.
- Start seeds indoors: Early March
- Transplant outdoors: Mid-to-late May
- Direct sow: Early June, if you must
Western Kansas Planting Window
Western Kansas, including Garden City and Dodge City, has a shorter growing season. Last frost can be as late as May 10-15.
- Start seeds indoors: Mid-March
- Transplant outdoors: Late May to early June
- Direct sow: Not advised due to short season
Why Soil Temperature Matters
Lemongrass is a tropical plant. It stops growing when soil drops below 60°F. At 65°F, roots start to develop properly. Below that, the plant sits and sulks, risking rot.
You can check soil temperature with a simple probe thermometer. Insert it 4 inches deep in the morning. If it reads 65°F or higher for three consecutive days, you are good to go.
How To Warm Soil Faster
If you want to plant a week or two earlier, try these tricks:
- Cover soil with black plastic sheeting for 2 weeks before planting
- Use raised beds, which warm up faster than ground soil
- Add a layer of compost, which darkens soil and absorbs heat
Starting Lemongrass From Seed
Lemongrass seeds are tiny and slow to germinate. They need warmth and patience. Start them indoors for best results.
- Sow seeds 1/4 inch deep in seed-starting mix
- Keep soil moist but not soggy
- Place in a warm spot (70-75°F) or use a heat mat
- Germination takes 7-21 days
- Provide 12-14 hours of light daily once sprouts appear
- Harden off seedlings for 7-10 days before transplanting
Transplanting Seedlings Outdoors
When your seedlings have 4-6 true leaves and outdoor conditions are right, it is time to move them.
- Choose a sunny spot with well-draining soil
- Space plants 24-36 inches apart
- Dig a hole slightly larger than the root ball
- Place plant at same depth it was in the pot
- Water thoroughly after planting
- Mulch around base to retain moisture and warmth
Planting Lemongrass From Stalks
Many gardeners start lemongrass from grocery store stalks. This method is faster and more reliable than seeds.
- Buy fresh lemongrass stalks with bulbs intact
- Place stalks in a glass of water, bulb end down
- Change water every 2 days
- Roots should appear in 1-2 weeks
- Once roots are 1-2 inches long, plant in potting soil
- Keep indoors until outdoor soil reaches 65°F
- Transplant to garden after hardening off
Kansas Climate Considerations
Kansas has hot summers and cold winters. Lemongrass is a perennial in tropical zones, but in Kansas it is grown as an annual or overwintered indoors.
Heat And Humidity
Lemongrass thrives in heat. Kansas summers are perfect for it. Once established, it needs regular watering, especially during dry spells. Aim for 1-2 inches of water per week.
Humidity in eastern Kansas can be high, which lemongrass likes. Western Kansas is drier, so you may need to mist plants or use drip irrigation.
Frost Danger
Lemongrass dies at 32°F. Even a light frost can kill it. In Kansas, the first frost usually arrives in October (east) or September (west).
To extend the season, cover plants with row covers or bring pots indoors when frost threatens. You can also dig up plants and overwinter them in a garage or basement.
How To Overwinter Lemongrass In Kansas
If you want to keep your lemongrass alive through winter, you have options.
Indoor Overwintering
- Dig up plants before first frost
- Cut back leaves to 6 inches tall
- Plant in pots with drainage holes
- Place in a sunny window or under grow lights
- Water sparingly, only when soil feels dry
- Keep away from cold drafts
Garage Or Basement Storage
- Dig up entire clump, shake off soil
- Wrap roots in damp newspaper or peat moss
- Place in a plastic bag with air holes
- Store in a cool, dark place (40-50°F)
- Check monthly for moisture and rot
- Replant outdoors after last frost next spring
Companion Planting With Lemongrass
Lemongrass can benefit other plants in your Kansas garden. It repels mosquitoes and some pests.
- Plant near tomatoes to deter hornworms
- Grow alongside peppers for similar soil needs
- Avoid planting near beans, which may compete for nutrients
- Use as a border plant to create a natural pest barrier
Common Mistakes When Planting Lemongrass In Kansas
Even experienced gardeners make errors. Here are the most common ones to avoid.
- Planting too early: Cold soil stunts growth or kills plants
- Overwatering: Lemongrass likes moisture but not soggy roots
- Underwatering: In Kansas heat, plants dry out fast
- Ignoring frost dates: One late frost can wipe out your crop
- Planting in shade: Lemongrass needs full sun, at least 6 hours daily
- Using poor soil: Heavy clay holds too much water; amend with compost
Harvesting Lemongrass
You can start harvesting lemongrass once stalks are about 12 inches tall and 1/2 inch thick at the base. Usually 90-120 days after planting.
- Cut stalks at ground level with a sharp knife
- Remove tough outer leaves
- Use the tender inner part for cooking or tea
- Leave at least half the plant to regrow
- Harvest regularly to encourage new growth
Frequently Asked Questions
Can I Plant Lemongrass In Kansas In April?
Only if you use protection like row covers or cold frames. Soil is usually too cold in April. Wait until mid-May for best results.
What Is The Latest I Can Plant Lemongrass In Kansas?
You can plant as late as early July, but the growing season will be shorter. Harvest before first frost in October.
Should I grow lemongrass in a pot in Kansas?
Yes, pots are great for controlling soil temperature and moving plants indoors for winter. Use a 5-gallon pot for best growth.
Does lemongrass come back every year in Kansas?
Only if you overwinter it indoors. It is not hardy enough to survive Kansas winters outdoors.
How much sun does lemongrass need in Kansas?
Full sun is best, meaning at least 6-8 hours of direct sunlight daily. Partial shade will result in thinner stalks.
Final Tips For Kansas Gardeners
Lemongrass is a rewarding plant for Kansas gardens. It adds a citrusy flavor to dishes and a tropical look to your landscape.
Remember these key points:
- Wait for soil to reach 65°F
- Plant after last frost date
- Start seeds indoors for a head start
- Water consistently during hot spells
- Harvest regularly for best flavor
- Overwinter indoors to save plants
With the right timing, you can enjoy fresh lemongrass from your Kansas garden all summer long. Start planning now, and you will be rewarded with a bountiful harvest.
One more thing: if you plant too early, don’t panic. Cover plants with a frost blanket if temperatures drop. Lemongrass is resilient if given a little protection.
Happy gardening in Kansas. Your lemongrass will thank you for waiting for that warm soil.