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When to Plant Rutabaga in Unknown

🌱

Direct Sow Outdoors

Tuesday, November 4, 2025

State

Unknown

USDA Zones

5a, 7a, 7b, 8b, 9a, 9b

Avg Last Frost

Tuesday, February 10, 2026

Cities Covered

13

Unknown Planting Schedule by Zone

Unknown spans 6 zones — find yours below for the most accurate dates.

Zone Last Frost Direct Sow
5a Sunday, May 10, 2026 Sunday, February 1, 2026
7a Friday, April 10, 2026 Friday, January 2, 2026
7b Sunday, April 5, 2026 Sunday, December 28, 2025
8b Sunday, March 15, 2026 Sunday, December 7, 2025
9a Friday, February 20, 2026 Friday, November 14, 2025
9b Tuesday, February 10, 2026 Tuesday, November 4, 2025

Dates based on average last frost. Check your local forecast before planting.

🌿 About Rutabaga

Scientific Name Brassica napus var. napobrassica
Days to Maturity 90 days
Plant Type Root
Sun Full Sun (6+ hours)
Water Regular (1 inch/week)
Spacing 8" apart

🤝 Companion Plants for Rutabaga

Good Companions

OnionGarlicPeaBean

Avoid Planting Near

TomatoPepper
See the full companion planting guide for Rutabaga →

Growing Rutabaga in Unknown: Complete Guide

Rutabaga (Brassica napus var. napobrassica) is a crop that grows best when sown directly in the garden. In Unknown, the right time to direct sow is around Tuesday, November 4, 2025, once soil temperatures are consistently warm enough for germination.

Because Unknown stretches across 6 USDA hardiness zones (5a, 7a, 7b, 8b, 9a, 9b), planting windows can shift by as much as six to eight weeks from one end of the state to the other. Gardeners in the warmer southern zones can start earlier, while those in cooler northern zones should wait until the zone table above shows their last frost has passed.

With 90 days to maturity, Rutabaga fits comfortably within Unknown's growing season in most zones. In the warmest parts of the state, a second planting later in the season may be possible.

Rutabaga requires full sun (6+ hours) and regular (1 inch/week) moisture. Most of Unknown receives adequate sunlight during the growing season, though gardeners in humid eastern regions should watch for fungal issues and ensure good air circulation.

For the most precise planting dates tailored to your exact location, enter your ZIP code on our planting calendar or use the zone table above to find the schedule for your area of Unknown.

Frequently Asked Questions

When should I plant Rutabaga in Unknown?

In Unknown, direct sow Rutabaga outdoors around Tuesday, November 4, 2025. Unknown spans zones 5a–9b, so gardeners in warmer zones can plant earlier.

What is the last frost date in Unknown?

Unknown spans 6 USDA zones (5a, 7a, 7b, 8b, 9a, 9b), so last frost dates vary by region. ZIP 50099 (5a) sees frost until around Sunday, May 10, 2026, while ZIP 32143, ZIP 85117, ZIP 85127 (9b) is frost-free much earlier.

How long does Rutabaga take to grow in Unknown?

Rutabaga takes about 90 days from transplant (or direct sow) to harvest. In Unknown's longer-season zones, a second planting in late summer may be possible.

What USDA zones does Unknown cover for Rutabaga?

Unknown includes zones 5a, 7a, 7b, 8b, 9a, 9b. Rutabaga grows well across all of these zones with adjusted timing — use the zone table above to find the right dates for your part of the state.

Find Precise Dates for Your City

Select a city for exact planting dates based on local frost records.

Other Plants for Unknown

When to Plant Rutabaga in Other States