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When to plant Eggplant in Calloway County County,

In Zone 7b (Calloway County County), direct-sow Eggplant between April 12 and May 3 for spring, after the April 5 last-frost mark.

When to Plant Eggplant in Calloway County, KY

Eggplant
Calloway County, Kentucky Zone 7b June

June to-do list for Calloway County, Kentucky

Each item below is timed to Calloway County, Kentucky's frost dates and soil temperatures. Skip nothing, stress about nothing.

Avg. last frost April 5
Avg. first frost October 29
Soil temp (4") 72°F
Watering Low
Pest pressure High
Daylight 14.5 hrs
  1. Start eggplant under lights

    A seed-starting mix and a sunny window (or a grow light) are all you need. Keep soil warm — around 70°F — for fast germination.

  2. Harvest eggplant as they ripen

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

A few tasks this June that'll pay off in July
  • First harvests: eggplant

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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.

Calloway County, Kentucky is in USDA Zone 7b. The average last spring frost is April 5 and the first fall frost is October 29, giving you a growing season of approximately 207 days.

At an elevation of 2,755 feet, Calloway County receives approximately 42 inches of rainfall annually with predominantly silt loam soil. Summer highs average 93°F, providing good warmth for Eggplant during the growing season.

Calloway County, KY (Zone 7b) Long season
207 days
Last Spring Frost April 5
207 growing days
First Fall Frost October 29
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Calloway County Soil Profile

Soil Type

Silt Loam

Soil pH

5.5-6.9

Drainage

Well Drained

Eggplant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (61 days to spare)
Start indoors: Jan 26 Transplant: Apr 13 🍅 Harvest: Jun 22 – Aug 24
Recommended (50%) ✓ Fits season (60 days to spare)
Start indoors: Feb 1 Transplant: Apr 19 🍅 Harvest: Jun 28 – Aug 30
Safe Start (90%) ✓ Fits season (63 days to spare)
Start indoors: Feb 13 Transplant: May 1 🍅 Harvest: Jul 10 – Sep 11

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 Calloway County

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

Soil pH

Your soil pH (5.5–6.9) is within Eggplant's preferred range (5.5–7.0).

Soil Texture

The silt loam soil in Calloway County is excellent for Eggplant — good drainage, moisture retention, and nutrient holding capacity.

Drainage

Drainage is adequate for Eggplant.

Organic Matter

Organic matter is moderate (2.7%). Annual compost additions will help Eggplant.

How to Plant Eggplant

1"
Planting Depth
30"
Between Plants
42"
Between Rows

Succession Planting Eggplant

3
successive plantings in your 207-day season

Sow every 7.4 weeks. Last sowing by Aug 05 to harvest before frost.

Eggplant Water Budget

Plant needs
1.1″/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 Eggplant

Eggplant needs approximately 1.1 inches of water per week (4.8" per month). Here's how your county's rainfall compares month by month.

Month Eggplant Needs Rainfall You Supplement Action
Jan 3.6" 0" ❄️ Dormant
Feb 3.2" 0" ❄️ Dormant
Mar 3.9" 0" ❄️ Dormant
Apr 4.8" 3.5" 1.3" 💧 Light watering
May 4.8" 3.8" 1" 💧 Light watering
Jun 4.8" 3.9" 0.9" 💧 Light watering
Jul 4.8" 3.7" 1.1" 💧 Light watering
Aug 4.8" 3.5" 1.3" 💧 Light watering
Sep 4.8" 3.6" 1.2" 💧 Light watering
Oct 4.8" 2.7" 2.1" 💧 Light watering
Nov 3.4" 0" ❄️ Dormant
Dec 3.1" 0" ❄️ Dormant

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

Eggplant 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.

Eggplant needs ~1,481 GDD — county provides 4,088 GDD Excellent fit

Eggplant Planting Timeline — Calloway County, KY

Eggplant Planting Calendar

Activity When Date Range
Start Indoors February 1 Feb 1 – Feb 15
Transplant Outdoors April 19 Apr 19 – May 3
Direct Sow April 12 Apr 12 – May 3
Harvest June 28 Jun 28 – Aug 30

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

Month-by-Month Timeline

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

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1.1"/week · Natural rainfall sufficient

📅 Days to Maturity

65–85 days

🧪 Soil pH

Needs 5.5–7 · Your soil: ideal

🗺️ USDA Zone

Zone 7b

📆 Growing Season

207 days in Calloway County

Growing Tips for Eggplant in Calloway County

Direct sow Eggplant outdoors after April 05 in Calloway County when soil has warmed and frost danger has passed.

Common pests for Eggplant in this region include tomato hornworm and aphids. Use row covers early in the season and inspect plants weekly.

General growing tips

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 Calloway County, KY?

Calloway County is in Zone 7b with an average last frost of April 5. Plan your Eggplant planting based on this frost date — see the calendar above for exact timing.

What planting zone is Calloway County, KY?

Calloway County, Kentucky is in USDA Hardiness Zone 7b. The average last spring frost is April 5 and first fall frost is October 29.

When should I plant Eggplant in Calloway County, ?

In Calloway County, , plant Eggplant after the last frost (around April 5) and before the first frost (around October 29). Best results when soil holds above 50°F.

What growing zone is Calloway County, for Eggplant?

Calloway County sits in USDA Zone 7b. Eggplant grows reliably in zones 5a through 11b, so it's a good fit here.

Can Eggplant grow in Calloway County's climate?

Yes — Eggplant grows well in Calloway County's temperate climate. Calloway County averages a 207-day frost-free season, with last frost around April 5 and first frost around October 29.

🌱

Your Calloway County Garden Planner — Free

A 22-page printable planner built for Calloway County (Zone 7b). 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 Calloway County, KY. Local conditions may vary. Last updated: June 2026.

Sources & credits

Every number on this page traces back to a primary horticulture or government data source. Click through to verify.