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When to Plant Lemongrass in Harrison County, TX

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.

Harrison County, Texas is in USDA Zone 8a. The average last spring frost is March 13 and the first fall frost is November 14, giving you a growing season of approximately 246 days.

At an elevation of 168 feet, Harrison County receives approximately 63.8 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 96ยฐF, so Lemongrass may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring โ€” great for early planting โ€” but Lemongrass will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Lemongrass root diseases.

Harrison County, TX (Zone 8a) Long season
246 days
Last Spring Frost March 13
246 growing days
First Fall Frost November 14

Harrison County Soil Profile

Soil Type

Sandy Loam

Soil pH

5.3-6.8

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (62 days to spare)
Start indoors: Jan 15 Transplant: Mar 19 🍅 Harvest: Jun 4 – Sep 3
Recommended (50%) ✓ Fits season (64 days to spare)
Start indoors: Jan 23 Transplant: Mar 27 🍅 Harvest: Jun 12 – Sep 11
Safe Start (90%) ✓ Fits season (57 days to spare)
Start indoors: Feb 15 Transplant: Apr 19 🍅 Harvest: Jul 5 – Oct 4

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.

Soil Compatibility in Harrison County

How your county's soil matches Lemongrass's growing requirements.

Soil pH

Your soil pH (5.3โ€“6.8) overlaps with Lemongrass's range (5.5โ€“7.5), though not a perfect match.

Soil Texture

Sandy soil in Harrison County warms quickly in spring but drains fast. Lemongrass will need more frequent watering and regular compost additions to retain nutrients.

Drainage

Lemongrass is a heavy drinker but your soil drains very quickly. Mulch heavily and consider drip irrigation.

Organic Matter

Organic matter is low (1.8%). Add 2-3 inches of compost before planting Lemongrass.

How to Plant Lemongrass

0.5"
Planting Depth
8"
Between Plants
12"
Between Rows

Succession Planting Lemongrass

3
successive plantings in your 246-day season

Sow every 8.6 weeks. Last sowing by Jul 17 to harvest before frost.

Plant Water Budget

Plant needs
1.5″/week
Rainfall provides
1.1″/week
You supply
0.9″/week
Watering frequency 2-3 times/week
Season total 1,884 gal / 100 sq ft

Monthly Watering Guide for Lemongrass

Lemongrass needs approximately 1.5 inches of water per week (6.5" per month). Here's how your county's rainfall compares month by month.

Month Lemongrass Needs Rainfall You Supplement Action
Jan โ€” 1.5" 0" โ„๏ธ Dormant
Feb โ€” 1.9" 0" โ„๏ธ Dormant
Mar 6.5" 4.4" 2.1" ๐Ÿ’ง Light watering
Apr 6.5" 6" 0.5" ๐Ÿ’ง Light watering
May 6.5" 9.7" 0" โœ… Rainfall sufficient
Jun 6.5" 11" 0" โœ… Rainfall sufficient
Jul 6.5" 7.9" 0" โœ… Rainfall sufficient
Aug 6.5" 7.3" 0" โœ… Rainfall sufficient
Sep 6.5" 6.3" 0.2" ๐Ÿ’ง Light watering
Oct 6.5" 4" 2.5" ๐Ÿ’ง Light watering
Nov 6.5" 2.3" 4.2" ๐Ÿšฟ Regular watering
Dec โ€” 1.4" 0" โ„๏ธ Dormant

Water needs are for active growing months only (Marโ€“Nov in Harrison County). Supplement amounts are based on average rainfall โ€” actual needs vary with temperature, soil, and mulching.

Lemongrass Heat Requirements (GDD)

What are Growing Degree Days (GDD)?

Growing Degree Days measure the total warmth your plants receive during the growing season. Think of it as a "heat bank" โ€” every day above 50ยฐF deposits warmth that helps your plants grow.

Each plant needs a certain amount of accumulated heat to mature. If your county provides more GDD than the plant needs, it's a great fit. If it's close, you may want to choose faster-maturing varieties or start seeds indoors to get a head start.

Lemongrass needs ~2,145 GDD — county provides 5,412 GDD Excellent fit

Lemongrass Planting Timeline โ€” Harrison County, TX

Lemongrass Planting Calendar

Activity When Date Range
Start Indoors January 23 Jan 23 โ€“ Feb 6
Transplant Outdoors March 27 Mar 27 โ€“ Apr 10
Direct Sow March 20 Mar 20 โ€“ Apr 10
Harvest June 12 Jun 12 โ€“ Sep 11

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

Month-by-Month Timeline

MonthActivities
January Start Indoors
February Start Indoors
March Transplant Outdoors 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

โ˜€๏ธ Sun

Full Sun (6-8+ hours)

๐Ÿ’ง Water

1.5"/week ยท 2-3 times/week

๐Ÿ“… Days to Maturity

75โ€“120 days

๐Ÿงช Soil pH

Needs 5.5โ€“7.5 ยท Your soil: acceptable

๐Ÿ—บ๏ธ USDA Zone

Zone 8a

๐Ÿ“† Growing Season

246 days in Harrison County

Growing Tips for Lemongrass in Harrison County

Direct sow Lemongrass outdoors after March 13 in Harrison County when soil has warmed and frost danger has passed.

Sandy soil in Harrison County dries quickly โ€” mulch Lemongrass with 2-3 inches of straw and water deeply 2-3 times per week rather than lightly every day.

With summer highs reaching 96ยฐF in Harrison County, provide afternoon shade for Lemongrass and water deeply in the morning.

Common pests for Lemongrass in this region include corn earworm and corn borers. Use row covers early in the season and inspect plants weekly.

General growing tips

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

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Lemongrass in Harrison County, TX?

Harrison County is in Zone 8a with an average last frost of March 13. Plan your Lemongrass planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Harrison County, TX?

Harrison County, Texas is in USDA Hardiness Zone 8a. The average last spring frost is March 13 and first fall frost is November 14.

๐ŸŒฑ

Plan Your Garden with Confidence

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

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