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When to Plant Zucchini in Wicomico County, MD

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.

Wicomico County, Maryland is in USDA Zone 7b. The average last spring frost is April 9 and the first fall frost is November 1, giving you a growing season of approximately 206 days.

At an elevation of 728 feet, Wicomico County receives approximately 48.1 inches of rainfall annually with predominantly silt loam soil. Summer highs average 92ยฐF, providing good warmth for Zucchini during the growing season.

Wicomico County, MD (Zone 7b) Long season
206 days
Last Spring Frost April 9
206 growing days
First Fall Frost November 1

Wicomico County Soil Profile

Soil Type

Silt Loam

Soil pH

5.3-7

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (85 days to spare)
Start indoors: Mar 5 Transplant: Apr 16 🍅 Harvest: Jun 4 – Jul 30
Recommended (50%) ✓ Fits season (87 days to spare)
Start indoors: Mar 12 Transplant: Apr 23 🍅 Harvest: Jun 11 – Aug 6
Safe Start (90%) ✓ Fits season (100 days to spare)
Start indoors: Apr 5 Transplant: May 17 🍅 Harvest: Jul 5 – Aug 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 Wicomico County

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

Soil pH

Your soil pH (5.3โ€“7.0) overlaps with Zucchini's range (6.0โ€“7.5), though not a perfect match.

Soil Texture

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

Organic Matter

Organic matter is moderate (3.3%). Annual compost additions will help Zucchini.

How to Plant Zucchini

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

Succession Planting Zucchini

5
successive plantings in your 206-day season

Sow every 5.1 weeks. Last sowing by Sep 02 to harvest before frost.

Plant 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 402 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 โ€” 3" 0" โ„๏ธ Dormant
Feb โ€” 3.4" 0" โ„๏ธ Dormant
Mar โ€” 4.1" 0" โ„๏ธ Dormant
Apr 5.2" 3.9" 1.3" ๐Ÿ’ง Light watering
May 5.2" 4.5" 0.7" ๐Ÿ’ง Light watering
Jun 5.2" 5" 0.2" ๐Ÿ’ง Light watering
Jul 5.2" 4.9" 0.3" ๐Ÿ’ง Light watering
Aug 5.2" 3.7" 1.5" ๐Ÿ’ง Light watering
Sep 5.2" 4.5" 0.7" ๐Ÿ’ง Light watering
Oct 5.2" 3.6" 1.6" ๐Ÿ’ง Light watering
Nov 5.2" 4" 1.2" ๐Ÿ’ง Light watering
Dec โ€” 3.7" 0" โ„๏ธ Dormant

Water needs are for active growing months only (Aprโ€“Nov in Wicomico County). Supplement amounts are based on average rainfall โ€” 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" 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.

Zucchini needs ~998 GDD — county provides 3,914 GDD Excellent fit

Zucchini Planting Timeline โ€” Wicomico County, MD

Zucchini Planting Calendar

Activity When Date Range
Start Indoors March 12 Mar 12 โ€“ Mar 26
Transplant Outdoors April 23 Apr 23 โ€“ May 7
Direct Sow April 16 Apr 16 โ€“ May 7
Harvest June 11 Jun 11 โ€“ Aug 6

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

Month-by-Month Timeline

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

Growing Conditions

โ˜€๏ธ Sun

Full Sun (6-8+ hours)

๐Ÿ’ง Water

1.2"/week ยท Only during dry spells

๐Ÿ“… Days to Maturity

45โ€“60 days

๐Ÿงช Soil pH

Needs 6โ€“7.5 ยท Your soil: acceptable

๐Ÿ—บ๏ธ USDA Zone

Zone 7b

๐Ÿ“† Growing Season

206 days in Wicomico County

Growing Tips for Zucchini in Wicomico County

Direct sow Zucchini outdoors after April 09 in Wicomico County when soil has warmed and frost danger has passed.

Your generous 206.0-day season in Wicomico 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 Wicomico County, MD?

Wicomico County is in Zone 7b with an average last frost of April 9. Plan your Zucchini planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Wicomico County, MD?

Wicomico County, Maryland is in USDA Hardiness Zone 7b. The average last spring frost is April 9 and first fall frost is November 1.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Wicomico County gardeners in Zone 7b 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 Wicomico County, MD. Local conditions may vary. Last updated: April 2026.