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When to Plant Okra in Kennebec County, ME

Okra is a heat-loving tropical plant that produces edible seed pods. It thrives in hot summers and produces beautiful hibiscus-like flowers before setting pods.

Kennebec County, Maine is in USDA Zone 5a. The average last spring frost is May 10 and the first fall frost is October 5, giving you a growing season of approximately 148 days.

At an elevation of 1,032 feet, Kennebec County receives approximately 42.5 inches of rainfall annually with predominantly silt loam soil. Summer highs average 84ยฐF, so choose short-season varieties of Okra to ensure they mature before fall.

Kennebec County, ME (Zone 5a) Short season
148 days
Last Spring Frost May 10
148 growing days
First Fall Frost October 5

Kennebec County Soil Profile

Soil Type

Silt Loam

Soil pH

5.1-6.4

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (19 days to spare)
Start indoors: Mar 9 Transplant: May 18 🍅 Harvest: Jul 13 – Sep 7
Recommended (50%) ✓ Fits season (22 days to spare)
Start indoors: Mar 15 Transplant: May 24 🍅 Harvest: Jul 19 – Sep 13
Safe Start (90%) ✓ Fits season (19 days to spare)
Start indoors: Apr 1 Transplant: Jun 10 🍅 Harvest: Aug 5 – Sep 30

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 Kennebec County

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

Soil pH

Your soil pH (5.1โ€“6.4) is more acidic than Okra prefers (6.0โ€“7.5). Add garden lime to raise pH.

Soil Texture

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

Organic Matter

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

How to Plant Okra

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

Succession Planting Okra

3
successive plantings in your 148-day season

Sow every 5.7 weeks. Last sowing by Aug 01 to harvest before frost.

Plant Water Budget

Plant needs
0.9″/week
Rainfall provides
1.2″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft

Monthly Watering Guide for Okra

Okra needs approximately 0.9 inches of water per week (3.9" per month). Here's how your county's rainfall compares month by month.

Month Okra Needs Rainfall You Supplement Action
Jan โ€” 3.3" 0" โ„๏ธ Dormant
Feb โ€” 2.8" 0" โ„๏ธ Dormant
Mar โ€” 3.5" 0" โ„๏ธ Dormant
Apr โ€” 3.4" 0" โ„๏ธ Dormant
May 3.9" 3.7" 0.2" ๐Ÿ’ง Light watering
Jun 3.9" 3.7" 0.2" ๐Ÿ’ง Light watering
Jul 3.9" 3.9" 0" โœ… Rainfall sufficient
Aug 3.9" 4" 0" โœ… Rainfall sufficient
Sep 3.9" 3.9" 0" โœ… Rainfall sufficient
Oct 3.9" 3.8" 0.1" ๐Ÿ’ง Light watering
Nov โ€” 3.1" 0" โ„๏ธ Dormant
Dec โ€” 3.4" 0" โ„๏ธ Dormant

Water needs are for active growing months only (Mayโ€“Oct in Kennebec County). Supplement amounts are based on average rainfall โ€” actual needs vary with temperature, soil, and mulching.

Okra 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.

Okra needs ~748 GDD — county provides 1,924 GDD Excellent fit

Okra Planting Timeline โ€” Kennebec County, ME

Okra Planting Calendar

Activity When Date Range
Start Indoors March 15 Mar 15 โ€“ Mar 29
Transplant Outdoors May 24 May 24 โ€“ Jun 7
Direct Sow May 17 May 17 โ€“ Jun 7
Harvest July 19 Jul 19 โ€“ Sep 13

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

Month-by-Month Timeline

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

Growing Conditions

โ˜€๏ธ Sun

Full Sun (6-8+ hours)

๐Ÿ’ง Water

0.9"/week ยท Natural rainfall sufficient

๐Ÿ“… Days to Maturity

50โ€“65 days

๐Ÿงช Soil pH

Needs 6โ€“7.5 ยท Your soil: too_acidic

๐Ÿ—บ๏ธ USDA Zone

Zone 5a

๐Ÿ“† Growing Season

148 days in Kennebec County

Growing Tips for Okra in Kennebec County

Direct sow Okra outdoors after May 10 in Kennebec County when soil has warmed and frost danger has passed.

General growing tips

Direct sow after soil reaches 65F. Soak seeds overnight to improve germination. Harvest pods when 2-4 inches long and still tender; they become tough if left too long.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Okra in Kennebec County, ME?

Kennebec County is in Zone 5a with an average last frost of May 10. Plan your Okra planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Kennebec County, ME?

Kennebec County, Maine is in USDA Hardiness Zone 5a. The average last spring frost is May 10 and first fall frost is October 5.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Kennebec County gardeners in Zone 5a 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 Kennebec County, ME. Local conditions may vary. Last updated: April 2026.