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When to Plant Turnip in Ruby, VA

Stafford County, Virginia Zone 7a August

Your August gardening checklist

We've pulled the most time-sensitive tasks for Stafford County, Virginia this August and put them front and centre. Tackle them in order.

Avg. last frost April 3
Avg. first frost November 4
Soil temp (4") 85°F
Watering Low
Pest pressure High
Daylight 13.5 hrs
  1. Sow turnip for an autumn harvest

    Count back from your first frost (November 4) — these need to mature before the cold arrives.

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Turnips are a fast-growing cool-season root vegetable with edible roots and greens. Baby turnips are sweet and tender while mature ones are more pungent.

Ruby, 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 Turnip during the growing season.

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

Ruby Soil Profile

Soil Type

Silt Loam

Soil pH

5.4-6.9

Drainage

Well Drained

Turnip Planting Risk Windows

Early Start (70% safe) ✓ Fits season (130 days to spare)
Transplant: Mar 26 🍅 Harvest: May 7 – Jun 11
Recommended (50%) ✓ Fits season (138 days to spare)
Transplant: Apr 3 🍅 Harvest: May 15 – Jun 19
Safe Start (90%) ✓ Fits season (126 days to spare)
Transplant: May 7 🍅 Harvest: Jun 18 – Jul 23

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 Ruby

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

Soil pH

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

Soil Texture

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

Organic Matter

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

How to Plant Turnip

0.5"
Planting Depth
4"
Between Plants
12"
Between Rows

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

Succession Planting Turnip

6
successive plantings in your 215-day season

Sow every 4.6 weeks. Last sowing by Sep 05 to harvest before frost.

For a dedicated fall crop, sow by Aug 26.

Turnip Water Budget

Plant needs
1.0″/week
Rainfall provides
0.9″/week
You supply
0.1″/week
Watering frequency Only during dry spells
Season total 157 gal / 100 sq ft

Monthly Watering Guide for Turnip

Turnip needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.

Month Turnip Needs Rainfall You Supplement Action
Jan 3.8" 0" ❄️ Dormant
Feb 4" 0" ❄️ Dormant
Mar 4.7" 0" ❄️ Dormant
Apr 4.3" 3.3" 1" 💧 Light watering
May 4.3" 3.5" 0.8" 💧 Light watering
Jun 4.3" 4.9" 0" ✅ Rainfall sufficient
Jul 4.3" 5.3" 0" ✅ Rainfall sufficient
Aug 4.3" 3.9" 0.4" 💧 Light watering
Sep 4.3" 3.8" 0.5" 💧 Light watering
Oct 4.3" 2.9" 1.4" 💧 Light watering
Nov 4.3" 3.5" 0.8" 💧 Light watering
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.

Turnip 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.

Turnip needs ~875 GDD — county provides 3,762 GDD Excellent fit

Turnip Planting Timeline — Ruby, VA

Turnip Planting Calendar

Activity When Date Range
Direct Sow March 20 Mar 20 – Apr 10
Harvest May 1 May 1 – Jun 5
Fall Sowing August 26 Aug 26 – Sep 9

Plant 0.5" deep · 4" apart · Rows 12" apart

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · Only during dry spells

📅 Days to Maturity

40–60 days

🧪 Soil pH

Needs 6–7 · Your soil: acceptable

🗺️ USDA Zone

Zone 7a

📆 Growing Season

215 days in Stafford County

Growing Tips for Turnip in Ruby

Direct sow Turnip 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 Turnip. Sow every 20.0 days for continuous harvest.

Common pests for Turnip 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 in early spring or late summer. Harvest when roots are 2-3 inches in diameter for best flavor. Both the roots and the greens are nutritious and edible.

Companion Planting

Good Companions

Avoid Planting Near

  • Potatoes

Check more plant combinations with our Companion Planting Checker →

🌱

Your Stafford County Garden Planner — Free

A 22-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: August 2026.