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When to plant Cilantro in Franklin County, MO

Franklin County sits in USDA Zone 6b. Plant Cilantro between March 27 (after last frost on April 10) and April 17. A second sowing from August 18 to September 1 extends the harvest into fall.

When to Plant Cilantro in Franklin County, MO

Cilantro

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.

Franklin County, Missouri is in USDA Zone 6b. The average last spring frost is April 10 and the first fall frost is October 27, giving you a growing season of approximately 200 days.

At an elevation of 1,180 feet, Franklin County receives approximately 38.3 inches of rainfall annually with predominantly silt loam soil. Summer highs average 90°F, providing good warmth for Cilantro during the growing season.

Franklin County, MO (Zone 6b) Long season
200 days
Last Spring Frost April 10
200 growing days
First Fall Frost October 27

Franklin County Soil Profile

Soil Type

Silt Loam

Soil pH

6.0-7.0

Drainage

Well Drained

Cilantro Planting Timeline — Franklin County, MO

Cilantro Planting Calendar

Activity When Date Range
Start Indoors March 6 Mar 6 – Mar 20
Transplant Outdoors April 3 Apr 3 – Apr 17
Direct Sow March 27 Mar 27 – Apr 17
Harvest May 15 May 15 – Jul 17
Fall Sowing August 18 Aug 18 – Sep 1

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Partial Shade (3-6 hours)

💧 Water

Moderate — regular watering

📅 Days to Maturity

40–60 days

🧪 Soil pH

Needs 6–7 · Your soil: N/A

🗺️ USDA Zone

Zone 6b

📆 Growing Season

200 days in Franklin County

Growing Tips for Franklin 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 Franklin County, MO?

Franklin County is in Zone 6b with an average last frost of April 10. Plan your Cilantro planting based on this frost date — see the calendar above for exact timing.

What planting zone is Franklin County, MO?

Franklin County, Missouri is in USDA Hardiness Zone 6b. The average last spring frost is April 10 and first fall frost is October 27.

When should I plant Cilantro in Franklin County, MO?

In Franklin County, MO, plant Cilantro after the last frost (around April 10) and before the first frost (around October 27). Best results when soil holds above 50°F.

What growing zone is Franklin County, MO for Cilantro?

Franklin County sits in USDA Zone 6b. Cilantro grows reliably in zones 2a through 11b, so it's a good fit here.

Can Cilantro grow in Franklin County's climate?

Yes — Cilantro grows well in Franklin County's temperate climate. Franklin County averages a 200-day frost-free season, with last frost around April 10 and first frost around October 27.

🌱

Your Franklin County Garden Planner — Free

A 22-page printable planner built for Franklin County (Zone 6b). 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 Franklin County, MO. Local conditions may vary. Last updated: June 2026.

Sources & credits

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