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When to Plant Mizuna in Northwest Territories

Mizuna is a mild-flavored Japanese mustard green with feathery, deeply serrated leaves. It is fast-growing and makes an excellent addition to salads and stir-fries.

Northwest Territories spans USDA hardiness zones 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 Mizuna planting dates based on your local frost dates.

Mizuna Planting Calendar for Northwest Territories

โ–ธ Zone 3a ~123 day growing season ยท Full guide โ†’

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

Activity When Date Range
Start Indoors April 3 Apr 3 โ€“ Apr 17
Transplant Outdoors May 15 May 15 โ€“ May 29
Direct Sow May 8 May 8 โ€“ May 29
Harvest June 19 Jun 19 โ€“ Jul 17
Fall Sowing June 23 Jun 23 โ€“ Jul 7

Growing Tips for Northwest Territories

Direct sow in spring or fall. Harvest outer leaves as needed for a cut-and-come-again approach. Mizuna is one of the most cold-tolerant Asian greens.

Frequently Asked Questions

When should I plant Mizuna in Northwest Territories?

Planting dates for Mizuna in Northwest Territories depend on your USDA zone. Northwest Territories spans zones 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 3a. Your specific zone depends on your location within the state โ€” 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.