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When to Plant Lemongrass in Humphreys County, MS

Humphreys County, Mississippi Zone 8b May

This month in Humphreys County, Mississippi

A quick May briefing for Humphreys County, Mississippi gardeners — what's urgent, what's next, and what can wait.

Avg. last frost March 6
Avg. first frost November 18
Soil temp (4") 73°F
Watering Low
Pest pressure High
Daylight 13.7 hrs
Looking ahead to June
  • First harvests: lemongrass

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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.

Humphreys County, Mississippi is in USDA Zone 8b. The average last spring frost is March 6 and the first fall frost is November 18, giving you a growing season of approximately 257 days.

At an elevation of 303 feet, Humphreys County receives approximately 57.8 inches of rainfall annually with predominantly clay loam soil. Summer highs average 93°F, providing good warmth for Lemongrass during the growing season. Clay soil retains moisture well for Lemongrass, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Lemongrass root diseases.

Humphreys County, MS (Zone 8b) Long season
257 days
Last Spring Frost March 6
257 growing days
First Fall Frost November 18

Humphreys County Soil Profile

Soil Type

Clay Loam

Soil pH

5.5-6.8

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (71 days to spare)
Start indoors: Jan 11 Transplant: Mar 15 🍅 Harvest: May 31 – Aug 30
Recommended (50%) ✓ Fits season (75 days to spare)
Start indoors: Jan 16 Transplant: Mar 20 🍅 Harvest: Jun 5 – Sep 4
Safe Start (90%) ✓ Fits season (68 days to spare)
Start indoors: Feb 4 Transplant: Apr 8 🍅 Harvest: Jun 24 – Sep 23

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 Humphreys County

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

Soil pH

Your soil pH (5.5–6.8) is within Lemongrass's preferred range (5.5–7.5).

Soil Texture

The clay loam soil in Humphreys County is excellent for Lemongrass — good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is moderate (2.3%). Annual compost additions will help Lemongrass.

How to Plant Lemongrass

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

Succession Planting Lemongrass

4
successive plantings in your 257-day season

Sow every 8.6 weeks. Last sowing by Jul 21 to harvest before frost.

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 1,270 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 4.9" 0" ❄️ Dormant
Feb 4.5" 0" ❄️ Dormant
Mar 6.5" 5.6" 0.9" 💧 Light watering
Apr 6.5" 4.1" 2.4" 💧 Light watering
May 6.5" 4.8" 1.7" 💧 Light watering
Jun 6.5" 4.8" 1.7" 💧 Light watering
Jul 6.5" 6.4" 0.1" 💧 Light watering
Aug 6.5" 5.9" 0.6" 💧 Light watering
Sep 6.5" 4.1" 2.4" 💧 Light watering
Oct 6.5" 3.8" 2.7" 💧 Light watering
Nov 6.5" 4.5" 2" 💧 Light watering
Dec 4.4" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Humphreys County). Supplement amounts are based on average rainfall — 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" — every day above 50°F 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 ~1,926 GDD — county provides 5,075 GDD Excellent fit

Lemongrass Planting Timeline — Humphreys County, MS

Lemongrass Planting Calendar

Activity When Date Range
Start Indoors January 16 Jan 16 – Jan 30
Transplant Outdoors March 20 Mar 20 – Apr 3
Direct Sow March 13 Mar 13 – Apr 3
Harvest June 5 Jun 5 – Sep 4

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1.5"/week · 1-2 times/week

📅 Days to Maturity

75–120 days

🧪 Soil pH

Needs 5.5–7.5 · Your soil: ideal

🗺️ USDA Zone

Zone 8b

📆 Growing Season

257 days in Humphreys County

Growing Tips for Lemongrass in Humphreys County

Direct sow Lemongrass outdoors after March 06 in Humphreys County when soil has warmed and frost danger has passed.

With Humphreys County's clay soil (29% clay), work in 3-4 inches of compost before planting Lemongrass. Avoid tilling when soil is wet to prevent compaction.

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 Humphreys County, MS?

Humphreys County is in Zone 8b with an average last frost of March 6. Plan your Lemongrass planting based on this frost date — see the calendar above for exact timing.

What planting zone is Humphreys County, MS?

Humphreys County, Mississippi is in USDA Hardiness Zone 8b. The average last spring frost is March 6 and first fall frost is November 18.

🌱

Your Humphreys County Garden Planner — Free

A 24-page printable planner built for Humphreys County (Zone 8b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.

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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 Humphreys County, MS. Local conditions may vary. Last updated: May 2026.

Sources & credits

Every number on this page traces back to a primary horticulture or government data source. Click through to verify.