When to plant beets in Pittsburgh, Pennsylvania

March 27 – April 10

Direct-sow outdoors · typical Pittsburgh year

Climate basis: NOAA station Emsworth L/d Ohio Rvr, PA (USC00362574), 6 mi (10 km) from downtown Pittsburgh (ZCTA 15222 centroid), elevation 717 ft, on the 1991–2020 climate normals. Direct-sow beets from approximately the dates above, anchored to the median last spring 32°F freeze (April 24). One year in ten still freezes after May 11.

Last spring freezeApril 241-in-10 after May 11
First fall freezeOctober 271-in-10 before Oct 13
Frost-free season186 daysmedian at 32°F
Hard freeze, 28°Apr 12Nov 5kills even hardy greens
USDA zone7a0 to 5°F winter low not frost timing

The Pittsburgh year

Direct-sow outdoorsMar 27 – Apr 10
Fall plantingSep 1 – Sep 29
  • indoors under lights
  • in the garden
  • frost-free season
  • 1-in-10 years still freeze to May 11
Beets in Pittsburgh · freeze context from Emsworth L/d Ohio Rvr, PA, 1991–2020 normals.

Every method, with its sources

Direct-sow outdoors

Mar 27 – Apr 10

Purdue: semi-hardy — 2–4 weeks before the last frost. Penn State sows from Apr 1 (−30) and UNH keys to 45°F soil; the later Purdue range is used. Anchored to the median last spring freeze (Apr 24). Purdue University Extension · Penn State Extension (York County Master Gardeners) · University of New Hampshire Extension

Fall planting

Sep 1 – Sep 29

Purdue Table 2: plant fall beets at least 4–8 weeks before the first fall frost, allowing for days to maturity. Anchored to the median first fall freeze (Oct 27). Purdue University Extension

Variety assumption: Assumes an average round variety (about 55–70 days; Penn State lists 70).

These windows describe typical years (1991–2020 climate normals), not this year's forecast. Freezes happen outside them — especially in frost pockets, valleys, and urban edges. Watch the forecast before committing tender plants.

This week, not a typical year:
Crop rule sources (3)

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