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When to Plant Parsnip in USDA Zone 5b

Zone 5b Zone 5b May

Your May game plan for Zone 5b

Your garden in Zone 5b is working on a schedule, even when you're not. Here's where you should be this May.

Avg. last frost May 1
Avg. first frost October 9
Download your personalised Zone 5b planting plan →

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.

In Zone 5b, the average last spring frost is around April 18 and the first fall frost is around October 13, giving you a growing season of approximately 178 days.

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Zone 5b Moderate season
178 days
Last Spring Frost April 18
178 growing days
First Fall Frost October 13

Parsnip Planting Timeline — Zone 5b

Where Is USDA Zone 5b?

The map below highlights the states that contain Zone 5b. Click any state to see the Parsnip planting schedule for that location.

Prints a clean, ink-friendly version without maps or navigation.

Parsnip Planting Calendar — Zone 5b

Activity When Date Range
Direct Sow April 4 Apr 4 – Apr 25
Harvest July 18 Jul 18 – Aug 29
Fall Sowing August 4 Aug 4 – Aug 18

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

Month-by-Month Timeline

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

Free Zone 5b Planting Calendar PDF

Know exactly when to plant every crop in your zone. Get a printable month-by-month calendar customized for Zone 5b with start dates, transplant windows, and harvest times.

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Growing Conditions

Sun

Full Sun (6-8+ hours)

💧 Water

Moderate — regular watering

Days to Maturity

100–130 days

Soil pH

6 – 7

Zone Temperature Range

°F to °F average annual minimum

Growing Season

178 days (Zone average)

Planting Specifications

Planting Depth1 inches
Plant Spacing15 inches apart
Row Spacing24 inches between rows

Growing Tips for Parsnip in Zone

Zone has a short growing season (~178 days). Start Parsnip indoors early and use season-extension techniques like row covers and cold frames.

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
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Saving Parsnip Seeds

Recommended for Your Garden

🌱
Seed Starting Trays $8-20

Start seeds indoors with reusable cell trays and humidity domes.

🧪
Soil Test Kit $12-25

Test your soil pH, nitrogen, phosphorus, and potassium levels before planting.

🏷️
Garden Plant Markers $6-12

Keep your garden organized with durable, weather-resistant plant labels.

Related Plants

Frequently Asked Questions

When should I plant Parsnip in Zone 5b?

In Zone 5b, plan your Parsnip planting around the average last frost date of April 18. Direct sow outdoors around April 4.

Can Parsnip grow in Zone 5b?

Yes, Parsnip can grow well in Zone 5b, hardy in USDA zones 2a through 9b. Zone 5b has a growing season of approximately 178 days, which is sufficient for Parsnip (100-130 days to maturity).

When can I harvest Parsnip in Zone 5b?

In Zone 5b, expect to harvest Parsnip from July 18 – August 29. Parsnip takes 100-130 days from planting to harvest.

What is the last frost date for Zone 5b?

The average last spring frost in Zone 5b is around April 18, and the first fall frost is around October 13. This gives a growing season of approximately 178 days. These are 50% probability dates — actual frost dates vary year to year.

What should I plant next to Parsnip?

Good companion plants for Parsnip include Peas, Radish, Lettuce. These companions can help with pest control, pollination, and nutrient sharing.

🌱

Your Free Printable Garden Planner

A 24-page printable planner tailored to your zone. Planting dates, monthly task lists, harvest log, seed inventory, and succession charts — everything you need to plan a full season.

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Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals, University Cooperative Extension planting guides. Planting dates are estimates based on average frost dates — 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.