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When to Plant Rutabaga in USDA Zone 3a

Rutabagas are a cross between turnips and cabbage, producing large yellow-fleshed roots with a sweet, mild flavor. They are excellent mashed, roasted, or in stews.

In Zone 3a, the average last spring frost is around May 15 and the first fall frost is around September 15, giving you a growing season of approximately 123 days.

Zone 3a Short season
123 days
Last Spring Frost May 15
123 growing days
First Fall Frost September 15

Rutabaga Planting Timeline — Zone 3a

Where Is USDA Zone 3a?

The map below highlights the states that contain Zone 3a. Click any state to see the Rutabaga planting schedule for that location.

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

Rutabaga Planting Calendar — Zone 3a

Activity When Date Range
Direct Sow May 8 May 8 – May 29
Fall Sowing June 23 Jun 23 – Jul 7
Harvest July 31 Jul 31 – Sep 4

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

Month-by-Month Timeline

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

Free Zone 3a Planting Calendar PDF

Know exactly when to plant every crop in your zone. Get a printable month-by-month calendar customized for Zone 3a 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

80–100 days

Soil pH

6 – 7.5

Zone Temperature Range

-40°F to -35°F average annual minimum

Growing Season

123 days (Zone 3a average)

Planting Specifications

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

Growing Tips for Zone 3a

Direct sow in early summer for fall harvest. Thin seedlings to 6-8 inches apart. Flavor improves significantly after a few light frosts.

Companion Planting

Good Companions

Avoid Planting Near

  • Potatoes

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Saving Rutabaga Seeds

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Frequently Asked Questions

When should I plant Rutabaga in Zone 3a?

In Zone 3a, plan your Rutabaga planting around the average last frost date of May 15. Direct sow outdoors around May 8.

Can Rutabaga grow in Zone 3a?

Yes, Rutabaga can grow well in Zone 3a, hardy in USDA zones 2a through 9b. Zone 3a has a growing season of approximately 123 days, which is sufficient for Rutabaga (80-100 days to maturity).

When can I harvest Rutabaga in Zone 3a?

In Zone 3a, expect to harvest Rutabaga from July 31 – September 4. Rutabaga takes 80-100 days from planting to harvest.

What is the last frost date for Zone 3a?

The average last spring frost in Zone 3a is around May 15, and the first fall frost is around September 15. This gives a growing season of approximately 123 days. These are 50% probability dates — actual frost dates vary year to year.

What should I plant next to Rutabaga?

Good companion plants for Rutabaga include Peas, Onion, Carrots. 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 3a, track your crops, and plan your garden season from seed to harvest.

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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: April 2026.