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When to Plant Kabocha in Issaquena County, MS

Issaquena County, Mississippi Zone 8b May

May in Issaquena County, Mississippi — your action list

A quick May briefing for Issaquena County, Mississippi gardeners — what's urgent, what's next, and what can wait.

Avg. last frost March 5
Avg. first frost November 16
Soil temp (4") 72°F
Watering Low
Pest pressure High
Daylight 13.7 hrs
To set up a strong June, finish these tasks
  • First harvests: kabocha

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Kabocha is a Japanese winter squash with an exceptionally sweet, dense, chestnut-like flesh and dark green skin. It is a favorite in Asian cuisine for its rich, dry texture.

Issaquena County, Mississippi is in USDA Zone 8b. The average last spring frost is March 5 and the first fall frost is November 16, giving you a growing season of approximately 256 days.

At an elevation of 263 feet, Issaquena County receives approximately 60.5 inches of rainfall annually with predominantly clay loam soil. Summer highs average 94°F, providing good warmth for Kabocha during the growing season. Clay soil retains moisture well for Kabocha, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Kabocha root diseases.

Issaquena County, MS (Zone 8b) Long season
256 days
Last Spring Frost March 5
256 growing days
First Fall Frost November 16
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Issaquena County Soil Profile

Soil Type

Clay Loam

Soil pH

5.2-6.2

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (124 days to spare)
Start indoors: Jan 30 Transplant: Mar 13 🍅 Harvest: Jun 12 – Jul 10
Recommended (50%) ✓ Fits season (123 days to spare)
Start indoors: Feb 5 Transplant: Mar 19 🍅 Harvest: Jun 18 – Jul 16
Safe Start (90%) ✓ Fits season (120 days to spare)
Start indoors: Feb 23 Transplant: Apr 6 🍅 Harvest: Jul 6 – 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 Issaquena County

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

Soil pH

Your soil pH (5.2–6.2) is more acidic than Kabocha prefers (6.0–7.5). Add garden lime to raise pH.

Soil Texture

The clay loam soil in Issaquena County is excellent for Kabocha — good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is moderate (2.8%). Annual compost additions will help Kabocha.

How to Plant Kabocha

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

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
1.0″/week
You supply
0.0″/week
Watering frequency Only during dry spells
Season total 17 gal / 100 sq ft

Monthly Watering Guide for Kabocha

Kabocha needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.

Month Kabocha Needs Rainfall You Supplement Action
Jan 4.4" 0" ❄️ Dormant
Feb 4.6" 0" ❄️ Dormant
Mar 4.3" 5.6" 0" ✅ Rainfall sufficient
Apr 4.3" 4.4" 0" ✅ Rainfall sufficient
May 4.3" 4.7" 0" ✅ Rainfall sufficient
Jun 4.3" 5.4" 0" ✅ Rainfall sufficient
Jul 4.3" 6.8" 0" ✅ Rainfall sufficient
Aug 4.3" 5.6" 0" ✅ Rainfall sufficient
Sep 4.3" 4.8" 0" ✅ Rainfall sufficient
Oct 4.3" 4.4" 0" ✅ Rainfall sufficient
Nov 4.3" 5.3" 0" ✅ Rainfall sufficient
Dec 4.5" 0" ❄️ Dormant

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

Kabocha 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.

Kabocha needs ~1,896 GDD — county provides 5,248 GDD Excellent fit

Kabocha Planting Timeline — Issaquena County, MS

Kabocha Planting Calendar

Activity When Date Range
Start Indoors February 5 Feb 5 – Feb 19
Transplant Outdoors March 19 Mar 19 – Apr 2
Direct Sow March 12 Mar 12 – Apr 2
Harvest June 18 Jun 18 – Jul 16

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

Month-by-Month Timeline

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

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · Only during dry spells

📅 Days to Maturity

85–100 days

🧪 Soil pH

Needs 6–7.5 · Your soil: too_acidic

🗺️ USDA Zone

Zone 8b

📆 Growing Season

256 days in Issaquena County

Growing Tips for Kabocha in Issaquena County

Direct sow Kabocha outdoors after March 05 in Issaquena County when soil has warmed and frost danger has passed.

With Issaquena County's clay soil (28% clay), work in 3-4 inches of compost before planting Kabocha. Avoid tilling when soil is wet to prevent compaction.

Common pests for Kabocha in this region include squash vine borer and cucumber beetles. Use row covers early in the season and inspect plants weekly.

General growing tips

Direct sow after frost or start indoors. Harvest when the skin is hard and dull. The stem should be dry and corky. Stores well for 3-4 months in a cool, dry place.

Companion Planting

Good Companions

Avoid Planting Near

  • Potatoes

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Kabocha in Issaquena County, MS?

Issaquena County is in Zone 8b with an average last frost of March 5. Plan your Kabocha planting based on this frost date — see the calendar above for exact timing.

What planting zone is Issaquena County, MS?

Issaquena County, Mississippi is in USDA Hardiness Zone 8b. The average last spring frost is March 5 and first fall frost is November 16.

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Your Issaquena County Garden Planner — Free

A 24-page printable planner built for Issaquena County (Zone 8b). 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 Issaquena County, MS. 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.