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When to Plant Radish in Stafford County, VA

Stafford County, Virginia Zone 7a May

Your May game plan for Stafford County, Virginia

May rewards gardeners who work with the weather, not against it. Here's how to stay in step this month in Stafford County, Virginia.

Avg. last frost April 3
Avg. first frost November 4
Soil temp (4") 67°F
Watering Moderate
Pest pressure Moderate
Daylight 14.1 hrs
  1. Harvest radish as they ripen

    Check every 1–2 days. Many of these get tough or go to seed if you wait too long.

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Radishes are one of the fastest-growing vegetables, with some varieties ready in under a month. They come in round, elongated, and large winter types.

Stafford County, Virginia is in USDA Zone 7a. The average last spring frost is April 3 and the first fall frost is November 4, giving you a growing season of approximately 215 days.

At an elevation of 537 feet, Stafford County receives approximately 47 inches of rainfall annually with predominantly silt loam soil. Summer highs average 90°F, providing good warmth for Radish during the growing season.

Stafford County, VA (Zone 7a) Long season
215 days
Last Spring Frost April 3
215 growing days
First Fall Frost November 4

Stafford County Soil Profile

Soil Type

Silt Loam

Soil pH

5.4-6.9

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (158 days to spare)
Transplant: Mar 26 🍅 Harvest: Apr 23 – May 14
Recommended (50%) ✓ Fits season (166 days to spare)
Transplant: Apr 3 🍅 Harvest: May 1 – May 22
Safe Start (90%) ✓ Fits season (154 days to spare)
Transplant: May 7 🍅 Harvest: Jun 4 – Jun 25

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 Stafford County

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

Soil pH

Your soil pH (5.4–6.9) overlaps with Radish's range (6.0–7.0), though not a perfect match.

Soil Texture

The silt loam soil in Stafford County is excellent for Radish — good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

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

How to Plant Radish

0.5"
Planting Depth
2"
Between Plants
6"
Between Rows

Fall planting: Sow 10 weeks before your first frost date for a fall harvest.

Succession Planting Radish

12
successive plantings in your 215-day season

Sow every 2.4 weeks. Last sowing by Sep 30 to harvest before frost.

For a dedicated fall crop, sow by Aug 26.

Plant Water Budget

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

Monthly Watering Guide for Radish

Radish needs approximately 0.5 inches of water per week (2.2" per month). Here's how your county's rainfall compares month by month.

Month Radish Needs Rainfall You Supplement Action
Jan 3.8" 0" ❄️ Dormant
Feb 4" 0" ❄️ Dormant
Mar 4.7" 0" ❄️ Dormant
Apr 2.2" 3.3" 0" ✅ Rainfall sufficient
May 2.2" 3.5" 0" ✅ Rainfall sufficient
Jun 2.2" 4.9" 0" ✅ Rainfall sufficient
Jul 2.2" 5.3" 0" ✅ Rainfall sufficient
Aug 2.2" 3.9" 0" ✅ Rainfall sufficient
Sep 2.2" 3.8" 0" ✅ Rainfall sufficient
Oct 2.2" 2.9" 0" ✅ Rainfall sufficient
Nov 2.2" 3.5" 0" ✅ Rainfall sufficient
Dec 3.4" 0" ❄️ Dormant

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

Radish 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.

Radish needs ~499 GDD — county provides 3,762 GDD Excellent fit

Radish Planting Timeline — Stafford County, VA

Radish Planting Calendar

Activity When Date Range
Direct Sow March 20 Mar 20 – Apr 10
Harvest April 17 Apr 17 – May 8
Fall Sowing August 26 Aug 26 – Sep 9

Plant 0.5" deep · 2" apart · Rows 6" apart

Month-by-Month Timeline

MonthActivities
January
February
March Direct Sow
April Direct Sow Harvest
May Harvest
June
July
August Fall Sowing
September Fall Sowing
October
November
December

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.5"/week · Natural rainfall sufficient

📅 Days to Maturity

22–35 days

🧪 Soil pH

Needs 6–7 · Your soil: acceptable

🗺️ USDA Zone

Zone 7a

📆 Growing Season

215 days in Stafford County

Growing Tips for Radish in Stafford County

Direct sow Radish outdoors after April 03 in Stafford County when soil has warmed and frost danger has passed.

Your generous 215.0-day season in Stafford County allows multiple plantings of Radish. Sow every 11.0 days for continuous harvest.

Common pests for Radish in this region include cabbage worm and flea beetles. Use row covers early in the season and inspect plants weekly.

General growing tips

Direct sow every 1-2 weeks for continuous harvest. Do not transplant. Harvest spring radishes promptly to prevent them from becoming pithy and hot.

Companion Planting

Good Companions

Avoid Planting Near

  • Hyssop

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Radish in Stafford County, VA?

Stafford County is in Zone 7a with an average last frost of April 3. Plan your Radish planting based on this frost date — see the calendar above for exact timing.

What planting zone is Stafford County, VA?

Stafford County, Virginia is in USDA Hardiness Zone 7a. The average last spring frost is April 3 and first fall frost is November 4.

🌱

Your Stafford County Garden Planner — Free

A 24-page printable planner built for Stafford County (Zone 7a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.

Instant PDF download. No spam, unsubscribe any time.

Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Stafford County, VA. Local conditions may vary. Last updated: May 2026.

Sources & credits

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