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When to Plant Eggplant in Walton County, FL

Walton County, Florida Zone 9a May

May to-do list for Walton County, Florida

We've pulled the most time-sensitive tasks for Walton County, Florida this May and put them front and centre. Tackle them in order.

Avg. last frost March 14
Avg. first frost November 15
Soil temp (4") 74°F
Watering Moderate
Pest pressure High
Daylight 13.5 hrs
  1. Bring in the eggplant

    If you can't use it all right away, check the food-preservation section of your planner.

June will be here before you know it — start on
  • 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.

Walton County, Florida is in USDA Zone 9a. The average last spring frost is March 14 and the first fall frost is November 15, giving you a growing season of approximately 246 days.

At an elevation of 200 feet, Walton County receives approximately 52.8 inches of rainfall annually with predominantly sand soil. Summer highs average 95°F, so Eggplant may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring — great for early planting — but Eggplant will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Eggplant root diseases.

Walton County, FL (Zone 9a) Long season
246 days
Last Spring Frost March 14
246 growing days
First Fall Frost November 15

Walton County Soil Profile

Soil Type

Sand

Soil pH

4.8-6

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (108 days to spare)
Start indoors: Jan 23 Transplant: Mar 13 🍅 Harvest: May 22 – Jul 24
Recommended (50%) ✓ Fits season (106 days to spare)
Start indoors: Jan 31 Transplant: Mar 21 🍅 Harvest: May 30 – Aug 1
Safe Start (90%) ✓ Fits season (103 days to spare)
Start indoors: Feb 23 Transplant: Apr 13 🍅 Harvest: Jun 22 – Aug 24

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 Walton County

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

Soil pH

Your soil pH (4.8–6.0) is more acidic than Eggplant prefers (5.5–7.0). Add garden lime to raise pH.

Soil Texture

Sandy soil in Walton County warms quickly in spring but drains fast. Eggplant will need more frequent watering and regular compost additions to retain nutrients.

Drainage

Drainage is adequate for Eggplant.

Organic Matter

Organic matter is low (1.5%). Add 2-3 inches of compost before planting Eggplant.

How to Plant Eggplant

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

Succession Planting Eggplant

4
successive plantings in your 246-day season

Sow every 7.4 weeks. Last sowing by Aug 22 to harvest before frost.

Plant Water Budget

Plant needs
1.1″/week
Rainfall provides
0.9″/week
You supply
0.5″/week
Watering frequency 1-2 times/week
Season total 1,157 gal / 100 sq ft

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 2.1" 0" ❄️ Dormant
Feb 2.8" 0" ❄️ Dormant
Mar 4.8" 3.2" 1.6" 💧 Light watering
Apr 4.8" 2.6" 2.2" 💧 Light watering
May 4.8" 3.5" 1.3" 💧 Light watering
Jun 4.8" 7.5" 0" ✅ Rainfall sufficient
Jul 4.8" 8.1" 0" ✅ Rainfall sufficient
Aug 4.8" 7.8" 0" ✅ Rainfall sufficient
Sep 4.8" 6.7" 0" ✅ Rainfall sufficient
Oct 4.8" 4.2" 0.6" 💧 Light watering
Nov 4.8" 2.1" 2.7" 🚿 Regular watering
Dec 2.3" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Walton 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 ~1,594 GDD — county provides 5,227 GDD Excellent fit

Eggplant Planting Timeline — Walton County, FL

Eggplant Planting Calendar

Activity When Date Range
Start Indoors January 31 Jan 31 – Feb 14
Transplant Outdoors March 21 Mar 21 – Apr 4
Direct Sow March 14 Mar 14 – Apr 4
Harvest May 30 May 30 – Aug 1

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1.1"/week · 1-2 times/week

📅 Days to Maturity

65–85 days

🧪 Soil pH

Needs 5.5–7 · Your soil: too_acidic

🗺️ USDA Zone

Zone 9a

📆 Growing Season

246 days in Walton County

Growing Tips for Eggplant in Walton County

Direct sow Eggplant outdoors after March 14 in Walton County when soil has warmed and frost danger has passed.

Sandy soil in Walton County dries quickly — mulch Eggplant with 2-3 inches of straw and water deeply 2-3 times per week rather than lightly every day.

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 Walton County, FL?

Walton County is in Zone 9a with an average last frost of March 14. Plan your Eggplant planting based on this frost date — see the calendar above for exact timing.

What planting zone is Walton County, FL?

Walton County, Florida is in USDA Hardiness Zone 9a. The average last spring frost is March 14 and first fall frost is November 15.

🌱

Your Walton County Garden Planner — Free

A 24-page printable planner built for Walton County (Zone 9a). 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 Walton County, FL. Local conditions may vary. Last updated: May 2026.

Sources & credits

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