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When to Plant Lemongrass in Madison County, FL

Madison County, Florida Zone 9a May

May in Madison County, Florida — your action list

Each item below is timed to Madison County, Florida's frost dates and soil temperatures. Skip nothing, stress about nothing.

Avg. last frost March 5
Avg. first frost November 25
Soil temp (4") 73°F
Watering Low
Pest pressure High
Daylight 13.5 hrs
  1. Collect lemongrass at their peak

    The more you pick, the more the plant produces. Letting fruit overripen tells the plant it's time to stop.

To set up a strong June, finish these tasks
  • 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.

Madison County, Florida is in USDA Zone 9a. The average last spring frost is March 5 and the first fall frost is November 25, giving you a growing season of approximately 265 days.

At an elevation of 434 feet, Madison County receives approximately 61.2 inches of rainfall annually with predominantly sand soil. Summer highs average 95°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.

Madison County, FL (Zone 9a) Long season
265 days
Last Spring Frost March 5
265 growing days
First Fall Frost November 25

Madison County Soil Profile

Soil Type

Sand

Soil pH

5.2-5.7

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (89 days to spare)
Start indoors: Jan 13 Transplant: Mar 3 🍅 Harvest: May 19 – Aug 18
Recommended (50%) ✓ Fits season (90 days to spare)
Start indoors: Jan 22 Transplant: Mar 12 🍅 Harvest: May 28 – Aug 27
Safe Start (90%) ✓ Fits season (93 days to spare)
Start indoors: Feb 11 Transplant: Apr 1 🍅 Harvest: Jun 17 – Sep 16

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 Madison County

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

Soil pH

Your soil pH (5.2–5.7) is more acidic than Lemongrass prefers (5.5–7.5). Add garden lime to raise pH.

Soil Texture

Sandy soil in Madison 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 (1.4%). 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

4
successive plantings in your 265-day season

Sow every 8.6 weeks. Last sowing by Jul 28 to harvest before frost.

Plant Water Budget

Plant needs
1.5″/week
Rainfall provides
1.0″/week
You supply
1.2″/week
Watering frequency 2-3 times/week
Season total 2,774 gal / 100 sq ft
Drought risk

Water stress score is 6/10 — consider drought-tolerant varieties and mulching

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 3.2" 0" ❄️ Dormant
Feb 3.6" 0" ❄️ Dormant
Mar 6.5" 3.8" 2.7" 💧 Light watering
Apr 6.5" 3.1" 3.4" 🚿 Regular watering
May 6.5" 4.1" 2.4" 💧 Light watering
Jun 6.5" 7.7" 0" ✅ Rainfall sufficient
Jul 6.5" 8" 0" ✅ Rainfall sufficient
Aug 6.5" 9.6" 0" ✅ Rainfall sufficient
Sep 6.5" 8.6" 0" ✅ Rainfall sufficient
Oct 6.5" 4.6" 1.9" 💧 Light watering
Nov 6.5" 2.4" 4.1" 🚿 Regular watering
Dec 2.5" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Madison 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 ~2,072 GDD — county provides 5,631 GDD Excellent fit

Lemongrass Planting Timeline — Madison County, FL

Lemongrass Planting Calendar

Activity When Date Range
Start Indoors January 22 Jan 22 – Feb 5
Transplant Outdoors March 12 Mar 12 – Mar 26
Direct Sow March 12 Mar 12 – Apr 2
Harvest May 28 May 28 – Aug 27

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 Direct Sow
May Harvest
June Harvest
July Harvest
August Harvest
September
October
November
December

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1.5"/week · 2-3 times/week

📅 Days to Maturity

75–120 days

🧪 Soil pH

Needs 5.5–7.5 · Your soil: too_acidic

🗺️ USDA Zone

Zone 9a

📆 Growing Season

265 days in Madison County

Growing Tips for Lemongrass in Madison County

Direct sow Lemongrass outdoors after March 05 in Madison County when soil has warmed and frost danger has passed.

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

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 Madison County, FL?

Madison County is in Zone 9a with an average last frost of March 5. Plan your Lemongrass planting based on this frost date — see the calendar above for exact timing.

What planting zone is Madison County, FL?

Madison County, Florida is in USDA Hardiness Zone 9a. The average last spring frost is March 5 and first fall frost is November 25.

🌱

Your Madison County Garden Planner — Free

A 24-page printable planner built for Madison 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 Madison County, FL. 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.