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When to Plant Celery in Madison County, FL

Madison County, Florida Zone 9a May

May in Madison County, Florida — your action list

Here's what deserves your attention in Madison County, Florida this month. Everything below is tailored to Zone 9a and timed around your local frost dates.

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. Bring in the celery

    This is the payoff month. Bring a basket, bring a friend, and get into the beds.

June will be here before you know it — start on
  • First harvests: celery

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Celery is a marshland plant that requires consistent moisture and cool temperatures to produce crisp, flavorful stalks. It is a rewarding but demanding garden crop.

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 Celery may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring — great for early planting — but Celery will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Celery root diseases.

Madison County, FL (Zone 9a) Long season
265 days
Last Spring Frost March 5
265 growing days
First Fall Frost November 25
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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 (124 days to spare)
Start indoors: Jan 27 Transplant: Feb 24 🍅 Harvest: May 19 – Jul 14
Recommended (50%) ✓ Fits season (125 days to spare)
Start indoors: Feb 5 Transplant: Mar 5 🍅 Harvest: May 28 – Jul 23
Safe Start (90%) ✓ Fits season (128 days to spare)
Start indoors: Feb 25 Transplant: Mar 25 🍅 Harvest: Jun 17 – Aug 12

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 Celery's growing requirements.

Soil pH

Your soil pH (5.2–5.7) is more acidic than Celery prefers (6.0–7.0). Add garden lime to raise pH.

Soil Texture

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

Drainage

Celery 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 Celery.

How to Plant Celery

1"
Planting Depth
15"
Between Plants
24"
Between Rows

Fall planting: Sow 8 weeks before your first frost date for a fall harvest.

Succession Planting Celery

3
successive plantings in your 265-day season

Sow every 9.1 weeks. Last sowing by Jul 28 to harvest before frost.

For a dedicated fall crop, sow by Sep 30.

Plant Water Budget

Plant needs
1.3″/week
Rainfall provides
1.0″/week
You supply
0.9″/week
Watering frequency 2-3 times/week
Season total 2,038 gal / 100 sq ft
Drought risk

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

Monthly Watering Guide for Celery

Celery needs approximately 1.3 inches of water per week (5.6" per month). Here's how your county's rainfall compares month by month.

Month Celery Needs Rainfall You Supplement Action
Jan 3.2" 0" ❄️ Dormant
Feb 3.6" 0" ❄️ Dormant
Mar 5.6" 3.8" 1.8" 💧 Light watering
Apr 5.6" 3.1" 2.5" 💧 Light watering
May 5.6" 4.1" 1.5" 💧 Light watering
Jun 5.6" 7.7" 0" ✅ Rainfall sufficient
Jul 5.6" 8" 0" ✅ Rainfall sufficient
Aug 5.6" 9.6" 0" ✅ Rainfall sufficient
Sep 5.6" 8.6" 0" ✅ Rainfall sufficient
Oct 5.6" 4.6" 1" 💧 Light watering
Nov 5.6" 2.4" 3.2" 🚿 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.

Celery 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.

Celery needs ~2,125 GDD — county provides 5,631 GDD Excellent fit

Celery Planting Timeline — Madison County, FL

Celery Planting Calendar

Activity When Date Range
Start Indoors February 5 Feb 5 – Feb 19
Transplant Outdoors March 5 Mar 5 – Mar 19
Direct Sow February 12 Feb 12 – Mar 5
Harvest May 28 May 28 – Jul 23
Fall Sowing September 30 Sep 30 – Oct 14

Plant 1" deep · 15" apart · Rows 24" apart

Month-by-Month Timeline

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

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1.3"/week · 2-3 times/week

📅 Days to Maturity

80–120 days

🧪 Soil pH

Needs 6–7 · Your soil: too_acidic

🗺️ USDA Zone

Zone 9a

📆 Growing Season

265 days in Madison County

Growing Tips for Celery in Madison County

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

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

Common pests for Celery in this region include carrot rust fly and parsleyworm. Use row covers early in the season and inspect plants weekly.

General growing tips

Start seeds indoors 10-12 weeks before last frost. Keep soil consistently moist and never let it dry out. Blanch stalks by mounding soil or using collars for milder flavor.

Companion Planting

Good Companions

Avoid Planting Near

  • Carrots
  • Parsnip

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Celery in Madison County, FL?

Madison County is in Zone 9a with an average last frost of March 5. Plan your Celery 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.