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When to plant Zucchini in Mathiston, MS

Mathiston's spring Zucchini window runs March 30 through April 20. most warm-season crops establish quickly once soil holds above 60°F.

When to Plant Zucchini in Mathiston, MS

Zucchini
Webster County, Mississippi Zone 8a July

Your July gardening checklist

Each item below is timed to Webster County, Mississippi's frost dates and soil temperatures. Skip nothing, stress about nothing.

Avg. last frost March 23
Avg. first frost November 7
Soil temp (4") 85°F
Watering Low
Pest pressure High
Daylight 14 hrs
  1. Start harvesting zucchini

    The more you pick, the more the plant produces. Letting fruit overripen tells the plant it's time to stop.

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Zucchini is an incredibly prolific summer squash that can produce an abundance of fruit from just a few plants. It is versatile in the kitchen from grilling to baking.

Mathiston, Mississippi is in USDA Zone 8a. The average last spring frost is March 23 and the first fall frost is November 7, giving you a growing season of approximately 229 days.

At an elevation of 135 feet, Webster County receives approximately 56.5 inches of rainfall annually with predominantly clay loam soil. Summer highs average 93°F, providing good warmth for Zucchini during the growing season. Clay soil retains moisture well for Zucchini, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Zucchini root diseases.

Mathiston, MS (Zone 8a) Long season
229 days
Last Spring Frost March 23
229 growing days
First Fall Frost November 7

Mathiston Soil Profile

Soil Type

Clay Loam

Soil pH

5.6-6.2

Drainage

Well Drained

Zucchini Planting Risk Windows

Early Start (70% safe) ✓ Fits season (111 days to spare)
Start indoors: Feb 15 Transplant: Mar 29 🍅 Harvest: May 17 – Jul 12
Recommended (50%) ✓ Fits season (110 days to spare)
Start indoors: Feb 23 Transplant: Apr 6 🍅 Harvest: May 25 – Jul 20
Safe Start (90%) ✓ Fits season (109 days to spare)
Start indoors: Mar 15 Transplant: Apr 26 🍅 Harvest: Jun 14 – Aug 9

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 Mathiston

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

Soil pH

Your soil pH (5.6–6.2) is more acidic than Zucchini prefers (6.0–7.5). Add garden lime to raise pH.

Soil Texture

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

Organic Matter

Organic matter is moderate (2.6%). Annual compost additions will help Zucchini.

How to Plant Zucchini

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

Succession Planting Zucchini

6
successive plantings in your 229-day season

Sow every 5.1 weeks. Last sowing by Sep 08 to harvest before frost.

Zucchini Water Budget

Plant needs
1.2″/week
Rainfall provides
1.0″/week
You supply
0.2″/week
Watering frequency Only during dry spells
Season total 334 gal / 100 sq ft

Monthly Watering Guide for Zucchini

Zucchini needs approximately 1.2 inches of water per week (5.2" per month). Here's how your county's rainfall compares month by month.

Month Zucchini Needs Rainfall You Supplement Action
Jan 5.1" 0" ❄️ Dormant
Feb 4.2" 0" ❄️ Dormant
Mar 5.2" 5.5" 0" ✅ Rainfall sufficient
Apr 5.2" 3.9" 1.3" 💧 Light watering
May 5.2" 4.1" 1.1" 💧 Light watering
Jun 5.2" 4.9" 0.3" 💧 Light watering
Jul 5.2" 5.4" 0" ✅ Rainfall sufficient
Aug 5.2" 6.2" 0" ✅ Rainfall sufficient
Sep 5.2" 4.6" 0.6" 💧 Light watering
Oct 5.2" 3.9" 1.3" 💧 Light watering
Nov 5.2" 4.6" 0.6" 💧 Light watering
Dec 4.1" 0" ❄️ Dormant

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

Zucchini 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.

Zucchini needs ~1,037 GDD — county provides 4,522 GDD Excellent fit

Zucchini Planting Timeline — Mathiston, MS

Zucchini Planting Calendar

Activity When Date Range
Start Indoors February 23 Feb 23 – Mar 9
Transplant Outdoors April 6 Apr 6 – Apr 20
Direct Sow March 30 Mar 30 – Apr 20
Harvest May 25 May 25 – Jul 20

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1.2"/week · Only during dry spells

📅 Days to Maturity

45–60 days

🧪 Soil pH

Needs 6–7.5 · Your soil: too_acidic

🗺️ USDA Zone

Zone 8a

📆 Growing Season

229 days in Webster County

Growing Tips for Zucchini in Mathiston

Direct sow Zucchini outdoors after March 23 in Webster County when soil has warmed and frost danger has passed.

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

Your generous 229.0-day season in Webster County allows multiple plantings of Zucchini. Sow every 22.0 days for continuous harvest.

Common pests for Zucchini 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 last frost. Harvest when fruits are 6-8 inches long for best flavor and texture. Check plants daily in summer as fruits can double in size overnight.

Companion Planting

Good Companions

Avoid Planting Near

  • Potatoes

Check more plant combinations with our Companion Planting Checker →

When should I plant Zucchini in Mathiston, MS?

In Mathiston, MS, plant Zucchini after the last frost (around March 23) and before the first frost (around November 7). Best results when soil holds above 50°F.

What growing zone is Mathiston, MS for Zucchini?

Mathiston sits in USDA Zone 8a. Zucchini grows reliably in zones 3a through 11b, so it's a good fit here.

Can Zucchini grow in Mathiston's climate?

Yes — Zucchini grows well in Mathiston's temperate climate. Mathiston averages a 229-day frost-free season, with last frost around March 23 and first frost around November 7.

🌱

Your Webster County Garden Planner — Free

A 22-page printable planner built for Webster County (Zone 8a). 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 Webster County, MS. Local conditions may vary. Last updated: July 2026.