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When to Plant Eggplant in Monroe County, FL

Monroe County, Florida Zone 11b May

Your May planting checklist for Monroe County, Florida

May is a pivotal month for Monroe County, Florida gardens. Focus on these tasks first and you'll set up the rest of the season for success.

Avg. last frost January 22
Soil temp (4") 81°F
Watering Moderate
Pest pressure High
Daylight 13.2 hrs
  1. Harvest eggplant as they ripen

    This is the payoff month. Bring a basket, bring a friend, and get into the beds.

Coming up in June — start thinking about
  • 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.

Monroe County, Florida is in USDA Zone 11b. The average last spring frost is January 22 and the first fall frost is April 15, giving you a growing season of approximately 83 days.

At an elevation of 169 feet, Monroe County receives approximately 55.6 inches of rainfall annually with predominantly sand soil. Summer highs average 93°F, providing good warmth for Eggplant during the growing season. 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.

Monroe County, FL (Zone 11b) Very short season
83 days
Last Spring Frost January 22
83 growing days
First Fall Frost April 15
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Monroe County Soil Profile

Soil Type

Sand

Soil pH

4.8-5.7

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (131 days to spare)
Start indoors: Dec 6 Transplant: Jan 24 🍅 Harvest: Apr 4 – Jun 6
Recommended (50%) ✓ Fits season (126 days to spare)
Start indoors: Dec 11 Transplant: Jan 29 🍅 Harvest: Apr 9 – Jun 11
Safe Start (90%) ✓ Fits season (73 days to spare)
Start indoors: Feb 2 Transplant: Mar 23 🍅 Harvest: Jun 1 – Aug 3

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 Monroe County

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

Soil pH

Your soil pH (4.8–5.7) is more acidic than Eggplant prefers (5.5–7.0). Add garden lime to raise pH.

Soil Texture

Sandy soil in Monroe 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 (1.3%). Add 2-3 inches of compost before planting Eggplant.

How to Plant Eggplant

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

How Much Eggplant to Grow

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

For a family of 4, plant approximately 8 eggplant plants in about 70 sq ft. In Monroe County's 83-day season, you'll have plenty of time for a full harvest. Plan your garden layout →

Plant Water Budget

Plant needs
1.1″/week
Rainfall provides
0.6″/week
You supply
0.8″/week
Watering frequency 2-3 times/week
Season total 2,567 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 4.8" 2.3" 2.5" 🚿 Regular watering
Feb 4.8" 2.7" 2.1" 💧 Light watering
Mar 4.8" 3.8" 1" 💧 Light watering
Apr 4.8" 2.5" 2.3" 💧 Light watering
May 4.8" 3.2" 1.6" 💧 Light watering
Jun 4.8" 7.1" 0" ✅ Rainfall sufficient
Jul 4.8" 8.2" 0" ✅ Rainfall sufficient
Aug 4.8" 8.7" 0" ✅ Rainfall sufficient
Sep 4.8" 7.7" 0" ✅ Rainfall sufficient
Oct 4.8" 4.8" 0" ✅ Rainfall sufficient
Nov 2.2" 0" ❄️ Dormant
Dec 2.5" 0" ❄️ Dormant

Water needs are for active growing months only (Jan–Oct in Monroe 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 7,208 GDD Excellent fit

Eggplant Planting Timeline — Monroe County, FL

Eggplant Planting Calendar

Activity When Date Range
Start Indoors December 11 Dec 11 – Dec 25
Transplant Outdoors January 29 Jan 29 – Feb 12
Direct Sow January 22 Jan 22 – Feb 12
Harvest April 9 Apr 9 – Jun 11

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

Month-by-Month Timeline

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

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1.1"/week · 2-3 times/week

📅 Days to Maturity

65–85 days

🧪 Soil pH

Needs 5.5–7 · Your soil: too_acidic

🗺️ USDA Zone

Zone 11b

📆 Growing Season

83 days in Monroe County

Growing Tips for Eggplant in Monroe County

Direct sow Eggplant outdoors after January 22 in Monroe County when soil has warmed and frost danger has passed.

Sandy soil in Monroe 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 Monroe County, FL?

Monroe County is in Zone 11b with an average last frost of January 22. Plan your Eggplant planting based on this frost date — see the calendar above for exact timing.

What planting zone is Monroe County, FL?

Monroe County, Florida is in USDA Hardiness Zone 11b. The average last spring frost is January 22 and first fall frost is .

🌱

Your Monroe County Garden Planner — Free

A 24-page printable planner built for Monroe County (Zone 11b). 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 Monroe 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.