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When to plant mustard greens

Mustard greens timing, counted from your average last spring frost and first fall frost.

Seasoncool-season, hardy to frost
Sow outdoors4 weeks before to 1 week before the last frost
Fall sowing8 weeks before to 6 weeks before the first fall frost
Soil temperature to germinate40°F or warmer
Days to maturity30–50 days from seed
Spacing4–8 in apart, rows 12–18 in apart
Seed depth0.25 in

Example dates

PlaceDates
Austin, TX (78701)Sow outdoors: Feb 10–Mar 3; Fall sowing: Sep 22–Oct 6
Atlanta, GA (30303)Sow outdoors: Feb 24–Mar 17; Fall sowing: Sep 13–27
St. Louis, MO (63101)Sow outdoors: Mar 4–25; Fall sowing: Sep 9–23
Chicago, IL (60614)Sow outdoors: Mar 13–Apr 3; Fall sowing: Sep 10–24
Denver, CO (80202)Sow outdoors: Apr 2–23; Fall sowing: Aug 17–31
Seattle, WA (98101)Sow outdoors: Feb 13–Mar 6; Fall sowing: Sep 22–Oct 6

Every ZIP page has its own dates. Find your ZIP.

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Sources

Summarized in our own words from public extension publications.

All vegetables · Your ZIP's planting calendar