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When to plant Eggplant in Warren County, MO

For Eggplant in Warren County, the safe spring window opens around April 18 and closes around May 9. Last expected frost is April 11, first fall frost October 25, giving a 197-day growing season.

When to Plant Eggplant in Warren County, MO

Eggplant

Eggplant is a heat-loving solanaceous crop that produces glossy fruits in purple, white, or striped varieties. It requires long, warm growing seasons for best production.

Warren County, Missouri is in USDA Zone 6b. The average last spring frost is April 11 and the first fall frost is October 25, giving you a growing season of approximately 197 days.

At an elevation of 654 feet, Warren County receives approximately 30 inches of rainfall annually with predominantly silt loam soil. Summer highs average 89°F, providing good warmth for Eggplant during the growing season.

Warren County, MO (Zone 6b) Moderate season
197 days
Last Spring Frost April 11
197 growing days
First Fall Frost October 25

Warren County Soil Profile

Soil Type

Silt Loam

Soil pH

6.0-7.0

Drainage

Well Drained

How Much Eggplant to Grow

4-6 lbs
Average yield per plant
2
Plants per person
4 sq ft
Space per person

For a family of 4, plant approximately 8 eggplant plants in about 16 sq ft. In Warren County's 197-day season, you'll have plenty of time for a full harvest. Plan your garden layout →

Eggplant Planting Timeline — Warren County, MO

Eggplant Planting Calendar

Activity When Date Range
Start Indoors January 31 Jan 31 – Feb 14
Transplant Outdoors April 25 Apr 25 – May 9
Direct Sow April 18 Apr 18 – May 9
Harvest July 4 Jul 4 – Sep 5

Plant 1" deep · 30" apart · Rows 42" apart

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

Moderate — regular watering

📅 Days to Maturity

65–85 days

🧪 Soil pH

Needs 5.5–7 · Your soil: N/A

🗺️ USDA Zone

Zone 6b

📆 Growing Season

197 days in Warren County

Growing Tips for Warren County

Start seeds indoors 8-10 weeks before last frost. Transplant only after nighttime temperatures stay above 55F. Mulch to retain moisture and warmth around roots.

Companion Planting

Good Companions

Avoid Planting Near

  • Fennel
  • Kohlrabi

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Eggplant in Warren County, MO?

Warren County is in Zone 6b with an average last frost of April 11. Plan your Eggplant planting based on this frost date — see the calendar above for exact timing.

What planting zone is Warren County, MO?

Warren County, Missouri is in USDA Hardiness Zone 6b. The average last spring frost is April 11 and first fall frost is October 25.

When should I plant Eggplant in Warren County, MO?

In Warren County, MO, plant Eggplant after the last frost (around April 11) and before the first frost (around October 25). Best results when soil holds above 50°F.

What growing zone is Warren County, MO for Eggplant?

Warren County sits in USDA Zone 6b. Eggplant grows reliably in zones 5a through 11b, so it's a good fit here.

Can Eggplant grow in Warren County's climate?

Yes — Eggplant grows well in Warren County's temperate climate. Warren County averages a 197-day frost-free season, with last frost around April 11 and first frost around October 25.

🌱

Your Warren County Garden Planner — Free

A 22-page printable planner built for Warren 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 Warren County, MO. Local conditions may vary. Last updated: June 2026.

Sources & credits

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