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When to Plant Parsnip in Marion County, WV

Marion County, West Virginia Zone 6b May

What to do in May

Here's what deserves your attention in Marion County, West Virginia this month. Everything below is tailored to Zone 6b and timed around your local frost dates.

Avg. last frost April 30
Avg. first frost October 17
Soil temp (4") 53°F
Watering Moderate
Pest pressure Low
Daylight 14.2 hrs

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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.

Marion County, West Virginia is in USDA Zone 6b. The average last spring frost is April 30 and the first fall frost is October 17, giving you a growing season of approximately 170 days.

At an elevation of 3,780 feet, Marion County receives approximately 43.6 inches of rainfall annually with predominantly silt loam soil. Summer highs average 85°F, providing good warmth for Parsnip during the growing season.

Marion County, WV (Zone 6b) Moderate season
170 days
Last Spring Frost April 30
170 growing days
First Fall Frost October 17

Marion County Soil Profile

Soil Type

Silt Loam

Soil pH

5.3-6.7

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (22 days to spare)
Transplant: Apr 24 🍅 Harvest: Aug 7 – Sep 18
Recommended (50%) ✓ Fits season (23 days to spare)
Transplant: Apr 30 🍅 Harvest: Aug 13 – Sep 24
Safe Start (90%) ✓ Fits season (15 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 Marion County

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

Soil pH

Your soil pH (5.3–6.7) overlaps with Parsnip's range (6.0–7.0), though not a perfect match.

Soil Texture

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

Drainage

Drainage is adequate for Parsnip.

Organic Matter

Organic matter is moderate (3.4%). 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
1.1″/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 3.3" 0" ❄️ Dormant
Feb 4.1" 0" ❄️ Dormant
Mar 3.8" 0" ❄️ Dormant
Apr 4.3" 3.7" 0.6" 💧 Light watering
May 4.3" 3.5" 0.8" 💧 Light watering
Jun 4.3" 3.5" 0.8" 💧 Light watering
Jul 4.3" 4.2" 0.1" 💧 Light watering
Aug 4.3" 4.6" 0" ✅ Rainfall sufficient
Sep 4.3" 3.6" 0.7" 💧 Light watering
Oct 4.3" 2.5" 1.8" 💧 Light watering
Nov 3.4" 0" ❄️ Dormant
Dec 3.4" 0" ❄️ Dormant

Water needs are for active growing months only (Apr–Oct in Marion County). Supplement amounts are based on average rainfall — 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" — 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.

Parsnip needs ~1,581 GDD — county provides 2,337 GDD Excellent fit

Parsnip Planting Timeline — Marion County, WV

Parsnip Planting Calendar

Activity When Date Range
Direct Sow April 16 Apr 16 – May 7
Harvest July 30 Jul 30 – Sep 10
Fall Sowing August 8 Aug 8 – Aug 22

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · Natural rainfall sufficient

📅 Days to Maturity

100–130 days

🧪 Soil pH

Needs 6–7 · Your soil: acceptable

🗺️ USDA Zone

Zone 6b

📆 Growing Season

170 days in Marion County

Growing Tips for Parsnip in Marion County

Direct sow Parsnip outdoors after April 30 in Marion 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 Marion County, WV?

Marion County is in Zone 6b with an average last frost of April 30. Plan your Parsnip planting based on this frost date — see the calendar above for exact timing.

What planting zone is Marion County, WV?

Marion County, West Virginia is in USDA Hardiness Zone 6b. The average last spring frost is April 30 and first fall frost is October 17.

🌱

Your Marion County Garden Planner — Free

A 24-page printable planner built for Marion County (Zone 6b). 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 Marion County, WV. 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.