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When to Plant Radish in Northwest Territories

Radishes are one of the fastest-growing vegetables, with some varieties ready in under a month. They come in round, elongated, and large winter types.

Northwest Territories spans USDA hardiness zones 2b, 3a (with planting data available), so planting dates vary by your location within the state. Click your zone below for the most accurate dates.

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Click your county for exact Radish planting dates based on your local frost dates.

Radish Planting Calendar for Northwest Territories

Zone 2b ~111 day growing season · Full guide →

Last frost: May 22 · First frost: September 10 · 111 day season

Activity When Date Range
Direct Sow May 15 May 15 – Jun 5
Harvest June 12 Jun 12 – Jul 3
Fall Sowing June 18 Jun 18 – Jul 2
Zone 3a ~123 day growing season · Full guide →

Last frost: May 15 · First frost: September 15 · 123 day season

Activity When Date Range
Direct Sow May 8 May 8 – May 29
Harvest June 5 Jun 5 – Jun 26
Fall Sowing June 23 Jun 23 – Jul 7

Growing Tips for Northwest Territories

Direct sow every 1-2 weeks for continuous harvest. Do not transplant. Harvest spring radishes promptly to prevent them from becoming pithy and hot.

Frequently Asked Questions

When should I plant Radish in Northwest Territories?

Planting dates for Radish in Northwest Territories depend on your USDA zone. Northwest Territories spans zones 2b, 3a. Check the planting calendar above for your specific zone's frost dates and planting windows.

What zone is Northwest Territories for planting?

Northwest Territories contains USDA hardiness zones 2b, 3a. Your specific zone depends on your location within the state — northern and higher-elevation areas are in colder zones, while southern and coastal areas are warmer.

Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals, University Cooperative Extension planting guides. Last updated: April 2026.