When to plant salsify in Omaha, Nebraska

July 13 – July 27

Fall planting · typical Omaha year

Climate basis: NOAA station Omaha Eppley Airfield, NE (USW00014942), 4 mi (6 km) from downtown Omaha (ZCTA 68102 centroid), elevation 982 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 21). One year in ten still freezes after April 30.

Last spring freezeApril 181-in-10 after Apr 30
First fall freezeOctober 211-in-10 before Oct 6
Frost-free season185 daysmedian at 32°F
Hard freeze, 28°Apr 8Oct 30kills even hardy greens
USDA zone6a-10 to -5°F winter low not frost timing

The Omaha year

Fall plantingJul 13 – Jul 27
  • indoors under lights
  • in the garden
  • frost-free season
  • 1-in-10 years still freeze to Apr 30
Salsify in Omaha · freeze context from Omaha Eppley Airfield, NE, 1991–2020 normals.

Every method, with its sources

Fall planting

Jul 13 – Jul 27

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 21). 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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