When to plant salsify in Cincinnati, Ohio

July 17 – July 31

Fall planting · typical Cincinnati year

Climate basis: NOAA station Cincinnati Lunken AP, OH (USW00093812), 5 mi (7 km) from downtown Cincinnati (ZCTA 45202 centroid), elevation 490 ft, on the 1991–2020 climate normals. Plant salsify for fall from approximately the dates above, anchored to the median first fall 32°F freeze (October 25). One year in ten still freezes after May 3.

Last spring freezeApril 161-in-10 after May 3
First fall freezeOctober 251-in-10 before Oct 12
Frost-free season190 daysmedian at 32°F
Hard freeze, 28°Apr 2Nov 4kills even hardy greens
USDA zone6b-5 to 0°F winter low not frost timing

The Cincinnati year

Fall plantingJul 17 – Jul 31
  • indoors under lights
  • in the garden
  • frost-free season
  • 1-in-10 years still freeze to May 3
Salsify in Cincinnati · freeze context from Cincinnati Lunken AP, OH, 1991–2020 normals.

Every method, with its sources

Fall planting

Jul 17 – Jul 31

University of Arkansas Cooperative Extension fact sheet FSA6094 says to "Plant the seed in deep, well-prepared fertile soil in late spring or summer (about 100 days before freezing weather)," and the parenthetical — the only frost-anchored part of the instruction — encodes as a 14-day sowing span opening 100 days before the first freeze; no other extension source with a frost-relative salsify rule was found, so nothing required reconciling. Anchored to the median first fall freeze (Oct 25). University of Arkansas System Division of Agriculture, Cooperative Extension Service

Start seeds indoors

Not calculated

The cited extension guides do not time an indoor seed-starting window for this crop.

Transplant outdoors

Not calculated

The cited extension guides do not time an outdoor transplanting window for this crop.

Direct-sow outdoors

Not calculated

The University of Arkansas fact sheet gives salsify's spring timing only as a season ("seed late winter or spring"), not as an offset from the last spring freeze, so no spring window is computed here.

Variety assumption: Assumes true salsify (Tragopogon porrifolius) such as Mammoth Sandwich Island at about 120 days; note the Arkansas fact sheet heads its section "Salsify – Tragopogon porrifolius or Scorzonera hispanica" and lists a black-rooted scorzonera cultivar alongside it, so this entry deliberately covers only Tragopogon and black salsify is left as a separate plant.

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 (1)

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