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Sprout Authority

Growing mustard greens in zone 6b

(Zone 6b = an average winter low of -5°F to 0°F.)

In USDA zone 6b, the typical last spring frost is April 23 and the first fall frost is October 22. Here is when to plant mustard greens against those dates.

Direct sow outdoorsApril 2 to April 23

These are zone 6b averages

Computed from 5,242 ZIP codes in zone 6b. Your town's frost dates vary; enter your ZIP for dates built on your nearest weather station.

Get my exact dates

USDA Plant Hardiness Zone Map, 2023. USDA Agricultural Research Service / Oregon State University PRISM Group. NOAA National Centers for Environmental Information, U.S. Climate Normals 1991-2020. Planting windows for mustard greens from University of Illinois Extension. Zone dates are medians; local conditions vary.