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When to Plant Cilantro in Marion County, FL

Marion County, Florida Zone 9a May

This month in Marion County, Florida

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

Avg. last frost February 15
Avg. first frost December 1
Soil temp (4") 78°F
Watering Moderate
Pest pressure High
Daylight 13.5 hrs
  1. Bring in the cilantro

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

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Cilantro is a dual-purpose herb providing fresh leaves (cilantro) and dried seeds (coriander). It bolts quickly in heat, producing flowers beloved by beneficial insects.

Marion County, Florida is in USDA Zone 9a. The average last spring frost is February 15 and the first fall frost is December 1, giving you a growing season of approximately 289 days.

At an elevation of 244 feet, Marion County receives approximately 54.1 inches of rainfall annually with predominantly sand soil. Summer highs average 97°F, so Cilantro may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring — great for early planting — but Cilantro will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Cilantro root diseases.

Marion County, FL (Zone 9a) Year-round
289 days
Last Spring Frost February 15
289 growing days
First Fall Frost December 1

Marion County Soil Profile

Soil Type

Sand

Soil pH

4.8-5.9

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (192 days to spare)
Start indoors: Jan 9 Transplant: Jan 30 🍅 Harvest: Mar 13 – May 15
Recommended (50%) ✓ Fits season (191 days to spare)
Start indoors: Jan 18 Transplant: Feb 8 🍅 Harvest: Mar 22 – May 24
Safe Start (90%) ✓ Fits season (183 days to spare)
Start indoors: Feb 15 Transplant: Mar 8 🍅 Harvest: Apr 19 – Jun 21

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 Marion County

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

Soil pH

Your soil pH (4.8–5.9) is more acidic than Cilantro prefers (6.0–7.0). Add garden lime to raise pH.

Soil Texture

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

Drainage

Drainage is adequate for Cilantro.

Organic Matter

Organic matter is low (1.6%). Add 2-3 inches of compost before planting Cilantro.

How to Plant Cilantro

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

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

Succession Planting Cilantro

8
successive plantings in your 289-day season

Sow every 4.6 weeks. Last sowing by Oct 02 to harvest before frost.

For a dedicated fall crop, sow by Oct 06.

Plant Water Budget

Plant needs
0.5″/week
Rainfall provides
0.8″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft

Monthly Watering Guide for Cilantro

Cilantro needs approximately 0.5 inches of water per week (2.2" per month). Here's how your county's rainfall compares month by month.

Month Cilantro Needs Rainfall You Supplement Action
Jan 2.2" 0" ❄️ Dormant
Feb 2.2" 2.7" 0" ✅ Rainfall sufficient
Mar 2.2" 3.5" 0" ✅ Rainfall sufficient
Apr 2.2" 2.2" 0" ✅ Rainfall sufficient
May 2.2" 3.6" 0" ✅ Rainfall sufficient
Jun 2.2" 7.2" 0" ✅ Rainfall sufficient
Jul 2.2" 8.6" 0" ✅ Rainfall sufficient
Aug 2.2" 8.6" 0" ✅ Rainfall sufficient
Sep 2.2" 7.4" 0" ✅ Rainfall sufficient
Oct 2.2" 3.9" 0" ✅ Rainfall sufficient
Nov 2.2" 2.2" 0" ✅ Rainfall sufficient
Dec 2.2" 2.1" 0.1" 💧 Light watering

Water needs are for active growing months only (Feb–Dec in Marion County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.

Cilantro 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.

Cilantro needs ~1,138 GDD — county provides 6,597 GDD Excellent fit

Cilantro Planting Timeline — Marion County, FL

Cilantro Planting Calendar

Activity When Date Range
Start Indoors January 18 Jan 18 – Feb 1
Transplant Outdoors February 8 Feb 8 – Feb 22
Direct Sow January 25 Jan 25 – Feb 15
Harvest March 22 Mar 22 – May 24
Fall Sowing October 6 Oct 6 – Oct 20

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Partial Shade (3-6 hours)

💧 Water

0.5"/week · Natural rainfall sufficient

📅 Days to Maturity

40–60 days

🧪 Soil pH

Needs 6–7 · Your soil: too_acidic

🗺️ USDA Zone

Zone 9a

📆 Growing Season

289 days in Marion County

Growing Tips for Cilantro in Marion County

Direct sow Cilantro outdoors after February 15 in Marion County when soil has warmed and frost danger has passed.

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

Summer highs in Marion County reach 97°F — grow Cilantro as a spring or fall crop. Use shade cloth if planting in summer.

Your generous 290.0-day season in Marion County allows multiple plantings of Cilantro. Sow every 20.0 days for continuous harvest.

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

General growing tips

Succession sow every 2-3 weeks. Provide afternoon shade in warm weather. Harvest leaves before flowering or allow some plants to go to seed for coriander and self-sowing.

Companion Planting

Good Companions

Avoid Planting Near

  • Fennel

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Cilantro in Marion County, FL?

Marion County is in Zone 9a with an average last frost of February 15. Plan your Cilantro planting based on this frost date — see the calendar above for exact timing.

What planting zone is Marion County, FL?

Marion County, Florida is in USDA Hardiness Zone 9a. The average last spring frost is February 15 and first fall frost is December 1.

🌱

Your Marion County Garden Planner — Free

A 24-page printable planner built for Marion 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 Marion 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.