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When to Plant Cucumber in Chesterfield County, SC

Chesterfield County, South Carolina Zone 8a May

What to do in May

A quick May briefing for Chesterfield County, South Carolina gardeners — what's urgent, what's next, and what can wait.

Avg. last frost March 26
Avg. first frost November 6
Soil temp (4") 69°F
Watering Low
Pest pressure Moderate
Daylight 13.8 hrs
Get ahead of June
  • First harvests: cucumber

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Cucumbers are a warm-season vine crop available in slicing and pickling varieties. They are prolific producers when given warmth, moisture, and a trellis to climb.

Chesterfield County, South Carolina is in USDA Zone 8a. The average last spring frost is March 26 and the first fall frost is November 6, giving you a growing season of approximately 225 days.

At an elevation of 337 feet, Chesterfield County receives approximately 60.1 inches of rainfall annually with predominantly clay loam soil. Summer highs average 93°F, providing good warmth for Cucumber during the growing season. Clay soil retains moisture well for Cucumber, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Cucumber root diseases.

Chesterfield County, SC (Zone 8a) Long season
225 days
Last Spring Frost March 26
225 growing days
First Fall Frost November 6
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Chesterfield County Soil Profile

Soil Type

Clay Loam

Soil pH

5.3-6.5

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (101 days to spare)
Start indoors: Feb 19 Transplant: Apr 2 🍅 Harvest: May 28 – Jul 23
Recommended (50%) ✓ Fits season (99 days to spare)
Start indoors: Feb 26 Transplant: Apr 9 🍅 Harvest: Jun 4 – Jul 30
Safe Start (90%) ✓ Fits season (99 days to spare)
Start indoors: Mar 14 Transplant: Apr 25 🍅 Harvest: Jun 20 – Aug 15

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 Chesterfield County

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

Soil pH

Your soil pH (5.3–6.5) is more acidic than Cucumber prefers (6.0–7.0). Add garden lime to raise pH.

Soil Texture

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

Drainage

Drainage is adequate for Cucumber.

Organic Matter

Organic matter is moderate (2.3%). Annual compost additions will help Cucumber.

How to Plant Cucumber

0.5"
Planting Depth
24"
Between Plants
48"
Between Rows

Succession Planting Cucumber

5
successive plantings in your 225-day season

Sow every 5.7 weeks. Last sowing by Aug 28 to harvest before frost.

Plant Water Budget

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

Monthly Watering Guide for Cucumber

Cucumber needs approximately 1.5 inches of water per week (6.5" per month). Here's how your county's rainfall compares month by month.

Month Cucumber Needs Rainfall You Supplement Action
Jan 4.3" 0" ❄️ Dormant
Feb 4.7" 0" ❄️ Dormant
Mar 6.5" 5.6" 0.9" 💧 Light watering
Apr 6.5" 4.9" 1.6" 💧 Light watering
May 6.5" 5" 1.5" 💧 Light watering
Jun 6.5" 5.2" 1.3" 💧 Light watering
Jul 6.5" 7" 0" ✅ Rainfall sufficient
Aug 6.5" 4.9" 1.6" 💧 Light watering
Sep 6.5" 4.7" 1.8" 💧 Light watering
Oct 6.5" 4.3" 2.2" 💧 Light watering
Nov 6.5" 5" 1.5" 💧 Light watering
Dec 4.4" 0" ❄️ Dormant

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

Cucumber 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.

Cucumber needs ~1,185 GDD — county provides 4,443 GDD Excellent fit

Cucumber Planting Timeline — Chesterfield County, SC

Cucumber Planting Calendar

Activity When Date Range
Start Indoors February 26 Feb 26 – Mar 12
Transplant Outdoors April 9 Apr 9 – Apr 23
Direct Sow April 2 Apr 2 – Apr 23
Harvest June 4 Jun 4 – Jul 30

Plant 0.5" deep · 24" apart · Rows 48" apart

Month-by-Month Timeline

MonthActivities
January
February Start Indoors
March Start Indoors
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

1.5"/week · Natural rainfall sufficient

📅 Days to Maturity

50–70 days

🧪 Soil pH

Needs 6–7 · Your soil: too_acidic

🗺️ USDA Zone

Zone 8a

📆 Growing Season

225 days in Chesterfield County

Growing Tips for Cucumber in Chesterfield County

Direct sow Cucumber outdoors after March 26 in Chesterfield County when soil has warmed and frost danger has passed.

With Chesterfield County's clay soil (30% clay), work in 3-4 inches of compost before planting Cucumber. Avoid tilling when soil is wet to prevent compaction.

Common pests for Cucumber 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 or start indoors 3 weeks early. Provide a trellis for vining types to save space and improve air circulation. Harvest frequently to encourage production.

Companion Planting

Good Companions

Avoid Planting Near

  • Potatoes
  • Sage

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Cucumber in Chesterfield County, SC?

Chesterfield County is in Zone 8a with an average last frost of March 26. Plan your Cucumber planting based on this frost date — see the calendar above for exact timing.

What planting zone is Chesterfield County, SC?

Chesterfield County, South Carolina is in USDA Hardiness Zone 8a. The average last spring frost is March 26 and first fall frost is November 6.

🌱

Your Chesterfield County Garden Planner — Free

A 24-page printable planner built for Chesterfield 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 Chesterfield County, SC. 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.