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When to Plant Zucchini in Covington County, AL

Covington County, Alabama Zone 8b May

What to do in May

Your Covington County, Alabama garden is entering a new phase. Here's what's on the schedule for May and why each task matters now.

Avg. last frost March 20
Avg. first frost November 11
Soil temp (4") 75°F
Watering Low
Pest pressure High
Daylight 13.6 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.

June prep starts now
  • First harvests: zucchini

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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.

Covington County, Alabama is in USDA Zone 8b. The average last spring frost is March 20 and the first fall frost is November 11, giving you a growing season of approximately 236 days.

At an elevation of 392 feet, Covington County receives approximately 50.6 inches of rainfall annually with predominantly clay loam soil. Summer highs average 95°F, so Zucchini may need afternoon shade and extra watering during peak heat. 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.

Covington County, AL (Zone 8b) Long season
236 days
Last Spring Frost March 20
236 growing days
First Fall Frost November 11

Covington County Soil Profile

Soil Type

Clay Loam

Soil pH

5.3-6.6

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (116 days to spare)
Start indoors: Feb 12 Transplant: Mar 26 🍅 Harvest: May 14 – Jul 9
Recommended (50%) ✓ Fits season (117 days to spare)
Start indoors: Feb 20 Transplant: Apr 3 🍅 Harvest: May 22 – Jul 17
Safe Start (90%) ✓ Fits season (108 days to spare)
Start indoors: Mar 14 Transplant: Apr 25 🍅 Harvest: Jun 13 – Aug 8

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 Covington County

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

Soil pH

Your soil pH (5.3–6.6) is more acidic than Zucchini prefers (6.0–7.5). Add garden lime to raise pH.

Soil Texture

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

Organic Matter

Organic matter is moderate (2.5%). 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 236-day season

Sow every 5.1 weeks. Last sowing by Sep 12 to harvest before frost.

Plant Water Budget

Plant needs
1.2″/week
Rainfall provides
0.9″/week
You supply
0.3″/week
Watering frequency Only during dry spells
Season total 629 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 3.9" 0" ❄️ Dormant
Feb 4.5" 0" ❄️ Dormant
Mar 5.2" 5.2" 0" ✅ Rainfall sufficient
Apr 5.2" 3.9" 1.3" 💧 Light watering
May 5.2" 4.7" 0.5" 💧 Light watering
Jun 5.2" 4.5" 0.7" 💧 Light watering
Jul 5.2" 5.1" 0.1" 💧 Light watering
Aug 5.2" 4.7" 0.5" 💧 Light watering
Sep 5.2" 3.8" 1.4" 💧 Light watering
Oct 5.2" 3" 2.2" 💧 Light watering
Nov 5.2" 3.4" 1.8" 💧 Light watering
Dec 3.9" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Covington 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 ~1,116 GDD — county provides 5,015 GDD Excellent fit

Zucchini Planting Timeline — Covington County, AL

Zucchini Planting Calendar

Activity When Date Range
Start Indoors February 20 Feb 20 – Mar 6
Transplant Outdoors April 3 Apr 3 – Apr 17
Direct Sow March 27 Mar 27 – Apr 17
Harvest May 22 May 22 – Jul 17

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 8b

📆 Growing Season

236 days in Covington County

Growing Tips for Zucchini in Covington County

Direct sow Zucchini outdoors after March 20 in Covington County when soil has warmed and frost danger has passed.

With Covington County's clay soil (33% clay), work in 3-4 inches of compost before planting Zucchini. Avoid tilling when soil is wet to prevent compaction.

Your generous 236.0-day season in Covington 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 →

Frequently Asked Questions

When should I plant Zucchini in Covington County, AL?

Covington County is in Zone 8b with an average last frost of March 20. Plan your Zucchini planting based on this frost date — see the calendar above for exact timing.

What planting zone is Covington County, AL?

Covington County, Alabama is in USDA Hardiness Zone 8b. The average last spring frost is March 20 and first fall frost is November 11.

🌱

Your Covington County Garden Planner — Free

A 24-page printable planner built for Covington 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 Covington County, AL. 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.