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When to Plant Parsnip in Greenbrier County, WV

Parsnips are a sweet, nutty root vegetable that develops best flavor after exposure to frost. They require a long growing season but reward patient gardeners.

Greenbrier County, West Virginia is in USDA Zone 6a. The average last spring frost is May 3 and the first fall frost is October 17, giving you a growing season of approximately 167 days.

At an elevation of 3,189 feet, Greenbrier County receives approximately 50.8 inches of rainfall annually with predominantly silt loam soil. Summer highs average 91ยฐF, providing good warmth for Parsnip during the growing season. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Parsnip root diseases.

Greenbrier County, WV (Zone 6a) Moderate season
167 days
Last Spring Frost May 3
167 growing days
First Fall Frost October 17

Greenbrier County Soil Profile

Soil Type

Silt Loam

Soil pH

5.7-6.6

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (20 days to spare)
Transplant: Apr 27 🍅 Harvest: Aug 10 – Sep 21
Recommended (50%) ✓ Fits season (20 days to spare)
Transplant: May 3 🍅 Harvest: Aug 16 – Sep 27
Safe Start (90%) ✓ Fits season (11 days to spare)
Transplant: May 22 🍅 Harvest: Sep 4 – Oct 16

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 Greenbrier County

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

Soil pH

Your soil pH (5.7โ€“6.6) overlaps with Parsnip's range (6.0โ€“7.0), though not a perfect match.

Soil Texture

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

Organic Matter

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

How to Plant Parsnip

1"
Planting Depth
15"
Between Plants
24"
Between Rows

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

Plant Water Budget

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

Monthly Watering Guide for Parsnip

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

Month Parsnip Needs Rainfall You Supplement Action
Jan โ€” 4.9" 0" โ„๏ธ Dormant
Feb โ€” 4.1" 0" โ„๏ธ Dormant
Mar โ€” 4.9" 0" โ„๏ธ Dormant
Apr โ€” 3.6" 0" โ„๏ธ Dormant
May 4.3" 3.6" 0.7" ๐Ÿ’ง Light watering
Jun 4.3" 4.3" 0" โœ… Rainfall sufficient
Jul 4.3" 4.9" 0" โœ… Rainfall sufficient
Aug 4.3" 5.3" 0" โœ… Rainfall sufficient
Sep 4.3" 4.1" 0.2" ๐Ÿ’ง Light watering
Oct 4.3" 3" 1.3" ๐Ÿ’ง Light watering
Nov โ€” 4.1" 0" โ„๏ธ Dormant
Dec โ€” 4.1" 0" โ„๏ธ Dormant

Water needs are for active growing months only (Mayโ€“Oct in Greenbrier County). Supplement amounts are based on average rainfall โ€” actual needs vary with temperature, soil, and mulching.

Parsnip 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.

Parsnip needs ~2,099 GDD — county provides 3,047 GDD Excellent fit

Parsnip Planting Timeline โ€” Greenbrier County, WV

Parsnip Planting Calendar

Activity When Date Range
Direct Sow April 19 Apr 19 โ€“ May 10
Harvest August 2 Aug 2 โ€“ Sep 13
Fall Sowing August 8 Aug 8 โ€“ Aug 22

Plant 1" deep ยท 15" apart ยท Rows 24" apart

Month-by-Month Timeline

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

Growing Conditions

โ˜€๏ธ Sun

Full Sun (6-8+ hours)

๐Ÿ’ง Water

1"/week ยท Natural rainfall sufficient

๐Ÿ“… Days to Maturity

100โ€“130 days

๐Ÿงช Soil pH

Needs 6โ€“7 ยท Your soil: acceptable

๐Ÿ—บ๏ธ USDA Zone

Zone 6a

๐Ÿ“† Growing Season

167 days in Greenbrier County

Growing Tips for Parsnip in Greenbrier County

Direct sow Parsnip outdoors after May 03 in Greenbrier County when soil has warmed and frost danger has passed.

Common pests for Parsnip in this region include carrot rust fly and parsleyworm. Use row covers early in the season and inspect plants weekly.

General growing tips

Use only fresh seed as parsnip seed viability declines rapidly. Sow directly in spring in deeply worked soil. Leave roots in the ground through winter for sweetest flavor.

Companion Planting

Good Companions

Avoid Planting Near

  • Carrots
  • Celery

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Parsnip in Greenbrier County, WV?

Greenbrier County is in Zone 6a with an average last frost of May 3. Plan your Parsnip planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Greenbrier County, WV?

Greenbrier County, West Virginia is in USDA Hardiness Zone 6a. The average last spring frost is May 3 and first fall frost is October 17.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Greenbrier County gardeners in Zone 6a 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 Greenbrier County, WV. Local conditions may vary. Last updated: April 2026.