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When to Plant Lemongrass in Ouachita County, AR

Lemongrass is a tropical grass with a strong citrus aroma used extensively in Southeast Asian cuisine. The swollen stem bases are the most flavorful part.

Ouachita County, Arkansas is in USDA Zone 8a. The average last spring frost is March 23 and the first fall frost is November 3, giving you a growing season of approximately 225 days.

At an elevation of 591 feet, Ouachita County receives approximately 48.8 inches of rainfall annually with predominantly silt loam soil. Summer highs average 95ยฐF, so Lemongrass may need afternoon shade and extra watering during peak heat.

Ouachita County, AR (Zone 8a) Long season
225 days
Last Spring Frost March 23
225 growing days
First Fall Frost November 3

Ouachita County Soil Profile

Soil Type

Silt Loam

Soil pH

5.6-7.1

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (48 days to spare)
Start indoors: Jan 23 Transplant: Mar 27 🍅 Harvest: Jun 12 – Sep 11
Recommended (50%) ✓ Fits season (43 days to spare)
Start indoors: Feb 2 Transplant: Apr 6 🍅 Harvest: Jun 22 – Sep 21
Safe Start (90%) ✓ Fits season (42 days to spare)
Start indoors: Feb 24 Transplant: Apr 28 🍅 Harvest: Jul 14 – Oct 13

Percentages indicate frost risk at transplant. The 70% safe window means there is a 30% chance of frost after transplant — suitable for cold-hardy crops or gardeners with frost protection. The 90% safe window is best for tender plants.

Plant Water Budget

Plant needs
1.5″/week
Rainfall provides
0.9″/week
You supply
0.6″/week
Watering frequency 1-2 times/week
Season total 1,180 gal / 100 sq ft
Lemongrass needs ~2,072 GDD — county provides 4,781 GDD Excellent fit

Lemongrass Planting Timeline โ€” Ouachita County, AR

Lemongrass Planting Calendar

Activity When Date Range
Start Indoors February 2 Feb 2 โ€“ Feb 16
Transplant Outdoors April 6 Apr 6 โ€“ Apr 20
Direct Sow March 30 Mar 30 โ€“ Apr 20
Harvest June 22 Jun 22 โ€“ Sep 21

Plant 0.5" deep ยท 8" apart ยท Rows 12" apart

Month-by-Month Timeline

MonthActivities
January โ€”
February Start Indoors
March Direct Sow
April Transplant Outdoors Direct Sow
May โ€”
June Harvest
July Harvest
August Harvest
September Harvest
October โ€”
November โ€”
December โ€”

Growing Conditions

Sun

Full Sun (6-8+ hours)

Water

High โ€” keep soil consistently moist

Days to Maturity

75โ€“120 days

Soil pH

5.5 โ€“ 7.5

USDA Zone

Zone 8a

Growing Season

225 days

Growing Tips for Ouachita County

Start from divisions or store-bought stalks rooted in water. Grow in rich, moist soil with full sun. In cold climates, grow in containers and overwinter indoors.

Companion Planting

Good Companions

Level Up Your Garden

Frequently Asked Questions

When should I plant Lemongrass in Ouachita County, AR?

Ouachita County is in Zone 8a with an average last frost of March 23. Plan your Lemongrass planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Ouachita County, AR?

Ouachita County, Arkansas is in USDA Hardiness Zone 8a. The average last spring frost is March 23 and first fall frost is November 3.

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Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Ouachita County gardeners in Zone 8a organize planting dates, track what's growing, and never miss a planting window.

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Free download. Plan your entire garden season in minutes.

Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Ouachita County, AR. Local conditions may vary. Last updated: April 2026.