Growing mustard greens in zone 8b
(Zone 8b = an average winter low of 15°F to 20°F.)
In USDA zone 8b, the typical last spring frost is March 17 and the first fall frost is November 14. Here is when to plant mustard greens against those dates.
Typical timing
Zone 8b planting schedule
Evidence trail
How these dates are built
Sprout applies the cited planting offsets to the typical zone 8b frost anchors. The result is a planning baseline for the zone, not a local weather forecast.
- USDA Plant Hardiness Zone Map, 2023USDA Agricultural Research Service / Oregon State University PRISM Group. Supports the USDA hardiness-zone band.
- U.S. Climate Normals 1991-2020NOAA National Centers for Environmental Information. Supports the median spring and fall freeze dates.
- Mustard | Home Vegetable GardeningUniversity of Illinois Extension. Supports direct-sowing timing (direct).
Method note
Spring direct-sow 3 weeks before the frost-free date and again 3 weeks later (encoded as a window ending at the last-frost anchor), 3-5 inch spacing, 1/3-1/2 inch depth, and the aphid / cabbage-worm / spring-bolting / downy-mildew problems are from this page. The page gives no sun or pH figure: sun is the established full-sun norm for this cool-season green (recorded for the required field, not claimed from the source) and pH is omitted.
These are zone 8b averages
Computed from 3,378 ZIP codes in zone 8b. Your town's frost dates vary; enter your ZIP for dates built on your nearest weather station.
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Put these dates to work
The plant profile covers spacing, light, water, soil, and source-backed timing details.