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When to plant Cilantro in Jay, FL

For Jay, gardeners: plant Cilantro February 13 through March 6 once soil reads 50°F. A second sowing from September 26 to October 10 extends the harvest into fall.

When to Plant Cilantro in Jay, FL

Cilantro
Santa Rosa County, Florida Zone 9a August

Santa Rosa County, Florida gardeners: here's your August plan

Your garden in Santa Rosa County, Florida is working on a schedule, even when you're not. Here's where you should be this August.

Avg. last frost March 6
Avg. first frost November 21
Soil temp (4") 92°F
Watering Low
Pest pressure High
Daylight 13.1 hrs
Looking ahead to September
  • Fall sowing: cilantro

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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.

Jay, Florida is in USDA Zone 9a. The average last spring frost is March 6 and the first fall frost is November 21, giving you a growing season of approximately 260 days.

At an elevation of 104 feet, Santa Rosa County receives approximately 55 inches of rainfall annually with predominantly sand soil. Summer highs average 91°F, providing good warmth for Cilantro during the growing season. 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.

Jay, FL (Zone 9a) Long season
260 days
Last Spring Frost March 6
260 growing days
First Fall Frost November 21

Jay Soil Profile

Soil Type

Sand

Soil pH

5.1-5.8

Drainage

Well Drained

Cilantro Planting Risk Windows

Early Start (70% safe) ✓ Fits season (161 days to spare)
Start indoors: Feb 1 Transplant: Feb 22 🍅 Harvest: Apr 5 – Jun 7
Recommended (50%) ✓ Fits season (162 days to spare)
Start indoors: Feb 6 Transplant: Feb 27 🍅 Harvest: Apr 10 – Jun 12
Safe Start (90%) ✓ Fits season (162 days to spare)
Start indoors: Feb 27 Transplant: Mar 20 🍅 Harvest: May 1 – Jul 3

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 Jay

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

Soil pH

Your soil pH (5.1–5.8) is more acidic than Cilantro prefers (6.0–7.0). Add garden lime to raise pH.

Soil Texture

Sandy soil in Santa Rosa 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 (1.7%). 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

7
successive plantings in your 260-day season

Sow every 4.6 weeks. Last sowing by Sep 22 to harvest before frost.

For a dedicated fall crop, sow by Sep 26.

Cilantro Water Budget

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

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

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 2.9" 0" ❄️ Dormant
Feb 3" 0" ❄️ Dormant
Mar 2.2" 3.1" 0" ✅ Rainfall sufficient
Apr 2.2" 2.3" 0" ✅ Rainfall sufficient
May 2.2" 3.2" 0" ✅ Rainfall sufficient
Jun 2.2" 7.5" 0" ✅ Rainfall sufficient
Jul 2.2" 7.9" 0" ✅ Rainfall sufficient
Aug 2.2" 8.6" 0" ✅ Rainfall sufficient
Sep 2.2" 7.9" 0" ✅ Rainfall sufficient
Oct 2.2" 4.4" 0" ✅ Rainfall sufficient
Nov 2.2" 2" 0.2" 💧 Light watering
Dec 2.3" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Santa Rosa 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 ~912 GDD — county provides 4,745 GDD Excellent fit

Cilantro Planting Timeline — Jay, FL

Cilantro Planting Calendar

Activity When Date Range
Start Indoors February 6 Feb 6 – Feb 20
Transplant Outdoors February 27 Feb 27 – Mar 13
Direct Sow February 13 Feb 13 – Mar 6
Harvest April 10 Apr 10 – Jun 12
Fall Sowing September 26 Sep 26 – Oct 10

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

Month-by-Month Timeline

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

260 days in Santa Rosa County

Growing Tips for Cilantro in Jay

Direct sow Cilantro outdoors after March 06 in Santa Rosa County when soil has warmed and frost danger has passed.

Sandy soil in Santa Rosa 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 Santa Rosa County reach 91°F — grow Cilantro as a spring or fall crop. Use shade cloth if planting in summer.

Your generous 260.0-day season in Santa Rosa 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 →

When should I plant Cilantro in Jay, FL?

In Jay, FL, plant Cilantro after the last frost (around March 6) and before the first frost (around November 21). Best results when soil holds above 50°F.

What growing zone is Jay, FL for Cilantro?

Jay sits in USDA Zone 9a. Cilantro grows reliably in zones 2a through 11b, so it's a good fit here.

Can Cilantro grow in Jay's climate?

Yes — Cilantro grows well in Jay's temperate climate. Jay averages a 260-day frost-free season, with last frost around March 6 and first frost around November 21.

🌱

Your Santa Rosa County Garden Planner — Free

A 22-page printable planner built for Santa Rosa 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 Santa Rosa County, FL. Local conditions may vary. Last updated: August 2026.