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When to Plant Turnip in USDA Zone 5b

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.

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.

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

Turnip 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 Turnip planting schedule for that location.

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

Turnip Planting Calendar — Zone 5b

Activity When Date Range
Direct Sow April 4 Apr 4 – Apr 25
Harvest May 16 May 16 – Jun 20
Fall Sowing August 4 Aug 4 – Aug 18

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

Month-by-Month Timeline

MonthActivities
January
February
March
April Direct Sow
May Harvest
June Harvest
July
August Fall Sowing
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

40–60 days

Soil pH

6 – 7

Zone Temperature Range

-15°F to -10°F average annual minimum

Growing Season

178 days (Zone 5b average)

Planting Specifications

Planting Depth0.5 inches
Plant Spacing4 inches apart
Row Spacing12 inches between rows

Succession Planting Turnip in Zone 5b

5
successive plantings in Zone 5b's ~178-day season

Sow every 4.6 weeks for continuous harvest throughout the season.

Growing Tips for Turnip in Zone 5b

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

Level Up Your Garden

Saving Turnip Seeds

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Soil Test Kit $12-25

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

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Garden Plant Markers $6-12

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

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Frequently Asked Questions

When should I plant Turnip in Zone 5b?

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

Can Turnip grow in Zone 5b?

Yes, Turnip can grow well in Zone 5b, hardy in USDA zones 2a through 10b. Zone 5b has a growing season of approximately 178 days, which is sufficient for Turnip (40-60 days to maturity).

When can I harvest Turnip in Zone 5b?

In Zone 5b, expect to harvest Turnip from May 16 – June 20. Turnip takes 40-60 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 Turnip?

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

🌱

Plan Your Garden with Confidence

Get our free Garden Planner — organize your planting dates for Zone 5b, track your crops, and plan your garden season from seed to harvest.

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Free download. Plan your entire garden season in minutes.

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: April 2026.