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When to Plant Eggplant in Choctaw County, OK

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.

Choctaw County, Oklahoma is in USDA Zone 7b. The average last spring frost is March 18 and the first fall frost is November 12, giving you a growing season of approximately 239 days.

At an elevation of 576 feet, Choctaw County receives approximately 24.4 inches of rainfall annually with predominantly loam soil. Summer highs average 91ยฐF, providing good warmth for Eggplant during the growing season.

Choctaw County, OK (Zone 7b) Long season
239 days
Last Spring Frost March 18
239 growing days
First Fall Frost November 12

Choctaw County Soil Profile

Soil Type

Loam

Soil pH

6.4-7.5

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (93 days to spare)
Start indoors: Jan 3 Transplant: Mar 21 🍅 Harvest: May 30 – Aug 1
Recommended (50%) ✓ Fits season (92 days to spare)
Start indoors: Jan 14 Transplant: Apr 1 🍅 Harvest: Jun 10 – Aug 12
Safe Start (90%) ✓ Fits season (80 days to spare)
Start indoors: Feb 10 Transplant: Apr 28 🍅 Harvest: Jul 7 – Sep 8

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 Choctaw County

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

Soil pH

Your soil pH (6.4โ€“7.5) overlaps with Eggplant's range (5.5โ€“7.0), though not a perfect match.

Soil Texture

The loam soil in Choctaw County is excellent for Eggplant โ€” good drainage, moisture retention, and nutrient holding capacity.

Drainage

Drainage is adequate for Eggplant.

Organic Matter

Organic matter is moderate (3.5%). Annual compost additions will help Eggplant.

How to Plant Eggplant

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

Succession Planting Eggplant

4
successive plantings in your 239-day season

Sow every 7.4 weeks. Last sowing by Aug 19 to harvest before frost.

Plant Water Budget

Plant needs
1.1″/week
Rainfall provides
0.4″/week
You supply
1.2″/week
Watering frequency 2-3 times/week
Season total 2,556 gal / 100 sq ft
Drought risk

Water stress score is 6/10 โ€” 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 โ€” 0.6" 0" โ„๏ธ Dormant
Feb โ€” 0.8" 0" โ„๏ธ Dormant
Mar 4.8" 1.6" 3.2" ๐Ÿšฟ Regular watering
Apr 4.8" 2.5" 2.3" ๐Ÿ’ง Light watering
May 4.8" 3.8" 1" ๐Ÿ’ง Light watering
Jun 4.8" 3.6" 1.2" ๐Ÿ’ง Light watering
Jul 4.8" 3.5" 1.3" ๐Ÿ’ง Light watering
Aug 4.8" 3" 1.8" ๐Ÿ’ง Light watering
Sep 4.8" 2.1" 2.7" ๐Ÿšฟ Regular watering
Oct 4.8" 1.6" 3.2" ๐Ÿšฟ Regular watering
Nov 4.8" 0.8" 4" ๐Ÿšฟ Regular watering
Dec โ€” 0.6" 0" โ„๏ธ Dormant

Water needs are for active growing months only (Marโ€“Nov in Choctaw County). Supplement amounts are based on average rainfall โ€” 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" โ€” every day above 50ยฐF 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 ~1,369 GDD — county provides 4,361 GDD Excellent fit

Eggplant Planting Timeline โ€” Choctaw County, OK

Eggplant Planting Calendar

Activity When Date Range
Start Indoors January 14 Jan 14 โ€“ Jan 28
Transplant Outdoors April 1 Apr 1 โ€“ Apr 15
Direct Sow March 25 Mar 25 โ€“ Apr 15
Harvest June 10 Jun 10 โ€“ Aug 12

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

Month-by-Month Timeline

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

Growing Conditions

โ˜€๏ธ Sun

Full Sun (6-8+ hours)

๐Ÿ’ง Water

1.1"/week ยท 2-3 times/week

๐Ÿ“… Days to Maturity

65โ€“85 days

๐Ÿงช Soil pH

Needs 5.5โ€“7 ยท Your soil: acceptable

๐Ÿ—บ๏ธ USDA Zone

Zone 7b

๐Ÿ“† Growing Season

239 days in Choctaw County

Growing Tips for Eggplant in Choctaw County

Direct sow Eggplant outdoors after March 18 in Choctaw 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.

Choctaw County receives only 24" of rain annually. Eggplant needs consistent moisture โ€” install drip irrigation or water deeply 2-3 times per week.

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 Choctaw County, OK?

Choctaw County is in Zone 7b with an average last frost of March 18. Plan your Eggplant planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Choctaw County, OK?

Choctaw County, Oklahoma is in USDA Hardiness Zone 7b. The average last spring frost is March 18 and first fall frost is November 12.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Choctaw County gardeners in Zone 7b organize planting dates, track what's growing, and never miss a planting window.

Get Your Free Garden Planner →

Free download. Plan your entire garden season in minutes.

Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Choctaw County, OK. Local conditions may vary. Last updated: April 2026.