New Mexico’s high altitude and intense sun require planting lemongrass after the danger of late spring freezes has passed. The best time to plant lemon grass in new mexico is typically from late April to mid-May, once soil temperatures reach at least 60°F and nighttime lows stay above 50°F. This timing helps your lemongrass establish strong roots before the summer heat hits.
Lemongrass thrives in warm weather but hates frost. In New Mexico’s unpredictable spring, a single late freeze can kill young plants. Waiting until the soil warms up gives you a much better chance of success.
Best Time To Plant Lemon Grass In New Mexico
For most New Mexico gardeners, the ideal window opens around April 25th and closes by May 15th. This period balances the risk of frost with the need for a long growing season. Lemongrass needs at least 120 days of warm weather to reach full size.
Check your specific location. Southern New Mexico, near Las Cruces, can plant a week or two earlier. Northern areas like Taos or Santa Fe should wait until mid-May. Higher elevations above 6,000 feet may need to push planting to late May.
Understanding New Mexico’s Climate Zones
New Mexico spans USDA hardiness zones 5b through 8a. This affects your planting calendar significantly.
- Zone 5b (northern mountains): Plant after May 20th
- Zone 6a (central areas): Plant around May 10th
- Zone 7a (Albuquerque area): Plant late April to early May
- Zone 8a (southern deserts): Plant mid-April
Your local county extension office can give you exact frost dates for your zip code. Use that data to set your planting date.
Soil Temperature Matters More Than Air Temperature
Lemongrass roots grow best when soil is consistently above 60°F. Cold soil stunts growth and can cause root rot. Use a soil thermometer to check at 4 inches deep.
If you don’t have a thermometer, watch for signs. When nighttime lows stay above 50°F for a full week, the soil is usually warm enough. Another trick is to wait until your local oak trees leaf out fully.
Preparing Your Garden For Lemongrass
Good preparation makes a big difference. Lemongrass needs full sun and well-draining soil. New Mexico’s clay soils can be problematic, so ammend them before planting.
Choosing The Right Location
Pick a spot that gets at least 8 hours of direct sunlight daily. Lemongrass is a tropical plant that craves heat. Avoid areas near walls or fences that might reflect too much heat, which can dry out the plant.
Wind protection is also important. New Mexico’s strong winds can damage tender leaves. Plant near a south-facing wall or use a windbreak if needed.
Soil Preparation Steps
- Test your soil pH. Lemongrass prefers slightly acidic soil between 6.0 and 7.5
- Loosen the soil to 12 inches deep. Remove rocks and weeds
- Mix in 2-3 inches of compost or aged manure. This improves drainage and adds nutrients
- For clay soil, add sand or perlite to help drainage
- Create raised beds if your soil stays wet. This prevents root rot
New Mexico’s soil is often alkaline. If your pH is above 7.5, add sulfur or peat moss to lower it. Test again after two weeks.
Planting Lemongrass Step By Step
You can plant lemongrass from seeds, transplants, or stalks from the grocery store. Each method has different timing needs.
Planting From Transplants
Transplants are the easiest method. Buy healthy plants from a nursery after your last frost date.
- Dig holes 12 inches apart. Each hole should be slightly larger than the root ball
- Place the plant at the same depth it was in the pot
- Backfill with soil and press gently to remove air pockets
- Water deeply right after planting
- Add a 2-inch layer of mulch around the base. Keep mulch away from the stem
Water every 2-3 days for the first two weeks. Then reduce to once a week as the plant establishes.
Planting From Stalks
Grocery store lemongrass stalks can grow into full plants. Choose stalks with firm bases and some roots visible.
- Trim the top leaves to about 6 inches tall
- Place the stalk in a glass of water. Change water every 2 days
- Wait for roots to appear, usually 1-2 weeks
- Plant outdoors after the last frost, when soil is warm
- Bury the stalk so the base is just below soil level
This method works best if you start indoors 4-6 weeks before your planting date. It gives the stalk time to develop strong roots.
Starting From Seeds
Seeds need a longer head start. Begin indoors 8-10 weeks before your last frost date.
- Sow seeds 1/4 inch deep in seed-starting mix
- Keep soil moist and warm, around 70°F
- Use a heat mat if your home is cool
- Germination takes 7-14 days
- Harden off seedlings for a week before transplanting outdoors
Seeds can be tricky in New Mexico’s dry climate. Transplants are more reliable for beginners.
Caring For Lemongrass After Planting
Once planted, lemongrass needs consistent care to thrive. New Mexico’s dry air and intense sun create specific challenges.
Watering Requirements
Lemongrass likes moist but not soggy soil. Water deeply once a week during the growing season. In hot, dry periods, water twice a week.
Use drip irrigation or soaker hoses to keep water off the leaves. Wet leaves can lead to fungal diseases. Water early in the morning to reduce evaporation.
Check soil moisture by sticking your finger 2 inches deep. If it feels dry, it’s time to water. Mulch helps retain moisture and keeps roots cool.
Fertilizing Schedule
Lemongrass is a heavy feeder. Apply a balanced fertilizer like 10-10-10 every 4-6 weeks during the growing season.
- First feeding: 2 weeks after planting
- Second feeding: When plants are 12 inches tall
- Third feeding: Mid-summer
- Stop fertilizing by late August to let plants harden off for winter
Organic options include fish emulsion or compost tea. Apply at half strength to avoid burning roots.
Dealing With Pests And Diseases
Lemongrass is relatively pest-resistant. However, New Mexico’s dry conditions can attract spider mites.
Watch for yellowing leaves or fine webbing. Spray plants with a strong stream of water to dislodge mites. Neem oil works for severe infestations.
Root rot is the main disease risk. Avoid overwatering and ensure good drainage. If leaves turn brown and mushy, reduce watering immediately.
Extending The Growing Season
New Mexico’s growing season is short for lemongrass. Use these techniques to get more harvest time.
Using Row Covers
Floating row covers protect plants from light frosts. They can add 2-3 weeks to your season on both ends.
Install row covers when temperatures dip below 50°F at night. Remove them during the day to allow pollination and air circulation.
Heavier frost blankets work for temperatures down to 28°F. Keep them ready for unexpected late spring freezes.
Container Growing
Growing lemongrass in pots lets you move plants indoors when weather turns cold. Use a 5-gallon pot with drainage holes.
Place pots in the sunniest spot you have. Move them to a sheltered area during cold snaps. Bring them indoors before the first fall frost.
Container plants need more frequent watering. Check soil daily during hot weather. Use a saucer to catch excess water, but empty it after 30 minutes.
Harvesting Lemongrass In New Mexico
Lemongrass is ready to harvest about 90-120 days after planting. Look for stalks that are at least 1/2 inch thick at the base.
When To Harvest
Harvest in late summer or early fall, before the first frost. In most of New Mexico, this means August through October.
Cut stalks at ground level using sharp shears. Leave at least 3-4 stalks per plant to keep it growing. You can harvest multiple times during the season.
For the best flavor, harvest in the morning when essential oils are strongest. Use fresh stalks immediately or store them properly.
Storing Your Harvest
Fresh lemongrass keeps for 2-3 weeks in the refrigerator. Wrap stalks in a damp paper towel and place in a plastic bag.
For longer storage, freeze lemongrass. Chop it into 1-inch pieces and freeze in a sealed bag. Frozen lemongrass lasts up to 6 months.
Drying is another option. Hang stalks in a warm, dark place for 2 weeks. Store dried pieces in an airtight jar.
Overwintering Lemongrass
Lemongrass is a perennial in warm climates but dies back in New Mexico’s cold winters. You have two options for keeping it alive.
Bringing Plants Indoors
Dig up a few stalks before the first frost. Pot them in containers and bring them inside.
- Place in a sunny window or under grow lights
- Water sparingly, only when soil is dry to the touch
- Keep away from drafty windows and heat vents
- Fertilize monthly with half-strength fertilizer
- Move back outdoors after the last spring frost
Indoor plants may go dormant and lose leaves. Don’t worry, they will regrow in spring. Reduce watering during dormancy.
Mulching For Winter Protection
In milder parts of New Mexico, you can leave plants in the ground with heavy mulch.
After the first frost, cut stalks back to 6 inches tall. Cover the crown with 6-8 inches of straw or leaves. Add a layer of landscape fabric on top.
Remove mulch in early spring when temperatures stay above 50°F. This method works best in zones 7 and above. Northern gardeners should bring plants indoors.
Common Problems And Solutions
Even with careful planning, issues can arise. Here are solutions to frequent problems.
Yellowing Leaves
Yellow leaves often mean overwatering or nutrient deficiency. Check soil moisture first. If wet, let it dry out before watering again.
If soil is dry, apply a balanced fertilizer. Yellow lower leaves are normal as the plant grows. Only worry if new leaves are affected.
Stunted Growth
Slow growth usually indicates cold soil or lack of sun. Make sure your planting spot gets full sun. Use a soil thermometer to check temperature.
If soil is warm enough, consider a soil test. New Mexico soils can lack nitrogen. Add compost or a nitrogen-rich fertilizer.
Leaf Tip Burn
Brown leaf tips are common in dry climates. Increase humidity by misting plants in the morning. Group plants together to create a microclimate.
Salt buildup from fertilizers can also cause tip burn. Flush soil with clean water every few weeks to remove excess salts.
Frequently Asked Questions
Can I plant lemongrass in New Mexico in the fall?
Fall planting is not recommended. Lemongrass needs warm soil to establish roots. Fall-planted lemongrass rarely survives winter. Stick to spring planting for best results.
How long does lemongrass take to grow in New Mexico?
From transplanting, lemongrass takes about 90 days to reach harvest size. From seed, expect 120-150 days. The short growing season means starting seeds indoors is essential.
Does lemongrass need full sun in New Mexico?
Yes, lemongrass needs at least 8 hours of direct sun daily. New Mexico’s intense sun is actually beneficial. Just water consistently to prevent stress from heat.
What is the best lemongrass variety for New Mexico?
East Indian lemongrass (Cymbopogon flexuosus) is more drought-tolerant and better suited to New Mexico’s climate. West Indian lemongrass needs more humidity and water.
Can I grow lemongrass indoors in New Mexico?
Yes, but it needs strong light. Use a south-facing window or supplement with grow lights. Indoor lemongrass grows slower but can provide fresh stalks year-round.
Final Tips For Success
Planting lemongrass in New Mexico requires patience and attention to timing. The best time to plant lemon grass in new mexico is narrow but predictable.
Start preparing your soil a month before planting. Watch weather forecasts closely in spring. Have frost protection ready just in case.
With proper care, lemongrass grows well in New Mexico’s unique climate. The reward is fresh, fragrant stalks for cooking and teas all summer long.
Remember to water consistently but not excessively. Fertilize regularly. And most importantly, wait until the soil is warm before planting. Your lemongrass will thank you with vigorous growth.