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When to Plant Parsnip in Wexford County, MI

Wexford County, Michigan Zone 5b May

This month in Wexford County, Michigan

A quick May briefing for Wexford County, Michigan gardeners — what's urgent, what's next, and what can wait.

Avg. last frost May 17
Avg. first frost October 4
Soil temp (4") 58°F
Watering Low
Pest pressure Low
Daylight 14.6 hrs
  1. Plant parsnip from seed, right in the garden

    Keep the top inch of soil moist until germination — a gentle morning watering for 5–7 days does the job.

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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.

Wexford County, Michigan is in USDA Zone 5b. The average last spring frost is May 17 and the first fall frost is October 4, giving you a growing season of approximately 140 days.

At an elevation of 1,167 feet, Wexford County receives approximately 35.8 inches of rainfall annually with predominantly silt loam soil. Summer highs average 84°F, so choose short-season varieties of Parsnip to ensure they mature before fall.

Wexford County, MI (Zone 5b) Short season
140 days
Last Spring Frost May 17
140 growing days
First Fall Frost October 4

Wexford County Soil Profile

Soil Type

Silt Loam

Soil pH

6.2-6.8

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✗ May not fit
Transplant: May 12 🍅 Harvest: Aug 25 – Oct 6
Recommended (50%) ✗ May not fit
Transplant: May 17 🍅 Harvest: Aug 30 – Oct 11
Safe Start (90%) ✗ May not fit
Transplant: May 30 🍅 Harvest: Sep 12 – Oct 24

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 Wexford County

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

Soil pH

Your soil pH (6.2–6.8) is within Parsnip's preferred range (6.0–7.0).

Soil Texture

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

Organic Matter

Organic matter is excellent (4.5%) — Parsnip will thrive.

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
Drought risk

Water stress score is 6/10 — consider drought-tolerant varieties and mulching

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 1.6" 0" ❄️ Dormant
Feb 1.6" 0" ❄️ Dormant
Mar 2.1" 0" ❄️ Dormant
Apr 3.7" 0" ❄️ Dormant
May 4.3" 4.3" 0" ✅ Rainfall sufficient
Jun 4.3" 4.1" 0.2" 💧 Light watering
Jul 4.3" 4.3" 0" ✅ Rainfall sufficient
Aug 4.3" 3.7" 0.6" 💧 Light watering
Sep 4.3" 3.4" 0.9" 💧 Light watering
Oct 4.3" 2.8" 1.5" 💧 Light watering
Nov 2.1" 0" ❄️ Dormant
Dec 2.2" 0" ❄️ Dormant

Water needs are for active growing months only (May–Oct in Wexford 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 ~1,495 GDD — county provides 1,820 GDD Good fit

Parsnip Planting Timeline — Wexford County, MI

Parsnip Planting Calendar

Activity When Date Range
Direct Sow May 3 May 3 – May 24
Harvest August 16 Aug 16 – Sep 27
Fall Sowing July 26 Jul 26 – Aug 9

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

Month-by-Month Timeline

MonthActivities
January
February
March
April
May Direct Sow
June
July Fall Sowing
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: ideal

🗺️ USDA Zone

Zone 5b

📆 Growing Season

140 days in Wexford County

Growing Tips for Parsnip in Wexford County

Direct sow Parsnip outdoors after May 17 in Wexford County when soil has warmed and frost danger has passed.

Your 140.0-day growing season in Wexford County is tight for Parsnip (100.0-130.0 days to maturity). Start indoors and choose early-maturing varieties.

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 Wexford County, MI?

Wexford County is in Zone 5b with an average last frost of May 17. Plan your Parsnip planting based on this frost date — see the calendar above for exact timing.

What planting zone is Wexford County, MI?

Wexford County, Michigan is in USDA Hardiness Zone 5b. The average last spring frost is May 17 and first fall frost is October 4.

🌱

Your Wexford County Garden Planner — Free

A 24-page printable planner built for Wexford County (Zone 5b). 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 Wexford County, MI. 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.