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When to Plant Cilantro in Marengo County, AL

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.

Marengo County, Alabama is in USDA Zone 8a. The average last spring frost is March 13 and the first fall frost is November 13, giving you a growing season of approximately 245 days.

At an elevation of 453 feet, Marengo County receives approximately 59.8 inches of rainfall annually with predominantly clay loam soil. Summer highs average 90Β°F, providing good warmth for Cilantro during the growing season. Clay soil retains moisture well for Cilantro, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Cilantro root diseases.

Marengo County, AL (Zone 8a) Long season
245 days
Last Spring Frost March 13
245 growing days
First Fall Frost November 13

Marengo County Soil Profile

Soil Type

Clay Loam

Soil pH

5.2-6.7

Drainage

Well Drained

Monthly Watering Guide for Cilantro

Cilantro needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.

Month Cilantro Needs Rainfall You Supplement Action
Jan β€” 4.5" 0" ❄️ Dormant
Feb β€” 5" 0" ❄️ Dormant
Mar 4.3" 5.3" 0" βœ… Rainfall sufficient
Apr 4.3" 4.3" 0" βœ… Rainfall sufficient
May 4.3" 4.5" 0" βœ… Rainfall sufficient
Jun 4.3" 5.8" 0" βœ… Rainfall sufficient
Jul 4.3" 5.7" 0" βœ… Rainfall sufficient
Aug 4.3" 6.1" 0" βœ… Rainfall sufficient
Sep 4.3" 4.8" 0" βœ… Rainfall sufficient
Oct 4.3" 4.6" 0" βœ… Rainfall sufficient
Nov 4.3" 4.7" 0" βœ… Rainfall sufficient
Dec β€” 4.4" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Marengo County). Supplement amounts are based on average rainfall β€” actual needs vary with temperature, soil, and mulching.

Cilantro Planting Timeline β€” Marengo County, AL

Cilantro Planting Calendar

Activity When Date Range
Start Indoors February 6 Feb 6 – Feb 20
Transplant Outdoors March 6 Mar 6 – Mar 20
Direct Sow February 27 Feb 27 – Mar 20
Harvest April 17 Apr 17 – Jun 19
Fall Sowing September 4 Sep 4 – Sep 18

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

Month-by-Month Timeline

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

Growing Conditions

β˜€οΈ Sun

Partial Shade (3-6 hours)

πŸ’§ Water

Moderate β€” regular watering

πŸ“… Days to Maturity

40–60 days

πŸ§ͺ Soil pH

Needs 6–7 Β· Your soil: N/A

πŸ—ΊοΈ USDA Zone

Zone 8a

πŸ“† Growing Season

245 days in Marengo County

Growing Tips for Marengo County

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 Marengo County, AL?

Marengo County is in Zone 8a with an average last frost of March 13. Plan your Cilantro planting based on this frost date β€” see the calendar above for exact timing.

What planting zone is Marengo County, AL?

Marengo County, Alabama is in USDA Hardiness Zone 8a. The average last spring frost is March 13 and first fall frost is November 13.

🌱

Plan Your Garden with Confidence

Get our free Garden Planner β€” designed to help Marengo County gardeners in Zone 8a organize planting dates, track what's growing, and never miss a planting window.

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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 Marengo County, AL. Local conditions may vary. Last updated: April 2026.