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When to Plant Lemongrass in Effingham County, GA

Effingham County, Georgia Zone 9a May

What to do in May

May rewards gardeners who work with the weather, not against it. Here's how to stay in step this month in Effingham County, Georgia.

Avg. last frost March 13
Avg. first frost November 17
Soil temp (4") 74°F
Watering Low
Pest pressure High
Daylight 13.7 hrs
Coming up in June — start thinking about
  • 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.

Effingham County, Georgia is in USDA Zone 9a. The average last spring frost is March 13 and the first fall frost is November 17, giving you a growing season of approximately 249 days.

At an elevation of 344 feet, Effingham County receives approximately 60.3 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 97°F, so Lemongrass may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring — great for early planting — 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.

Effingham County, GA (Zone 9a) Long season
249 days
Last Spring Frost March 13
249 growing days
First Fall Frost November 17

Effingham County Soil Profile

Soil Type

Sandy Loam

Soil pH

4.9-6.3

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (72 days to spare)
Start indoors: Jan 22 Transplant: Mar 12 🍅 Harvest: May 28 – Aug 27
Recommended (50%) ✓ Fits season (74 days to spare)
Start indoors: Jan 30 Transplant: Mar 20 🍅 Harvest: Jun 5 – Sep 4
Safe Start (90%) ✓ Fits season (70 days to spare)
Start indoors: Feb 25 Transplant: Apr 15 🍅 Harvest: Jul 1 – Sep 30

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 Effingham County

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

Soil pH

Your soil pH (4.9–6.3) overlaps with Lemongrass's range (5.5–7.5), though not a perfect match.

Soil Texture

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

Organic Matter

Organic matter is moderate (2.2%). Annual compost additions will help Lemongrass.

How to Plant Lemongrass

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

Succession Planting Lemongrass

3
successive plantings in your 249-day season

Sow every 8.6 weeks. Last sowing by Jul 20 to harvest before frost.

Plant Water Budget

Plant needs
1.5″/week
Rainfall provides
1.0″/week
You supply
0.5″/week
Watering frequency 1-2 times/week
Season total 1,070 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 4.8" 0" ❄️ Dormant
Feb 5.4" 0" ❄️ Dormant
Mar 6.5" 5.6" 0.9" 💧 Light watering
Apr 6.5" 4" 2.5" 💧 Light watering
May 6.5" 5" 1.5" 💧 Light watering
Jun 6.5" 4.6" 1.9" 💧 Light watering
Jul 6.5" 6.7" 0" ✅ Rainfall sufficient
Aug 6.5" 5.7" 0.8" 💧 Light watering
Sep 6.5" 4.6" 1.9" 💧 Light watering
Oct 6.5" 3.9" 2.6" 💧 Light watering
Nov 6.5" 5.1" 1.4" 💧 Light watering
Dec 4.9" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Effingham 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 ~2,218 GDD — county provides 5,664 GDD Excellent fit

Lemongrass Planting Timeline — Effingham County, GA

Lemongrass Planting Calendar

Activity When Date Range
Start Indoors January 30 Jan 30 – Feb 13
Transplant Outdoors March 20 Mar 20 – Apr 3
Direct Sow March 20 Mar 20 – Apr 10
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 Start Indoors
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: acceptable

🗺️ USDA Zone

Zone 9a

📆 Growing Season

249 days in Effingham County

Growing Tips for Lemongrass in Effingham County

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

Sandy soil in Effingham County dries quickly — 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 97°F in Effingham 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 Effingham County, GA?

Effingham County is in Zone 9a with an average last frost of March 13. Plan your Lemongrass planting based on this frost date — see the calendar above for exact timing.

What planting zone is Effingham County, GA?

Effingham County, Georgia is in USDA Hardiness Zone 9a. The average last spring frost is March 13 and first fall frost is November 17.

🌱

Your Effingham County Garden Planner — Free

A 24-page printable planner built for Effingham County (Zone 9a). 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 Effingham County, GA. 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.