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When to plant in Omaha

Omaha, Nebraska. A sowing, planting and harvest calendar for 25 vegetables and herbs, worked out from Omaha’s own frost dates and temperatures.

Last spring frostApr 18
First autumn frostOct 21
Frost-free season185 days
Hardiness zone5b

Photo: Acabashi, CC BY-SA 4.0, via Wikimedia Commons

In the garden now (2 November 2026)

Sow or plant outside

Garlic

Start indoors

No indoor sowing due this week.

Coming up in the next 4 weeks

No new outdoor sowings start in the next four weeks.

Omaha planting calendar

Bars show when each crop can go in and when a planting from that window is ready. The blue band is the frost season, from the average first autumn frost to the average last spring frost. Hover or tap a crop for details.

Sow indoorsSow or plant outdoorsHarvestFrost seasonToday

Swipe sideways to see the whole year →

Dates by crop

CropSow indoorsSow / plant outdoorsHarvest
Tomato Mar 13 – Apr 17 May 8 – Aug 6 plant out Jul 6 – Oct 17
Pepper Mar 8 – Apr 12 May 17 – Aug 2 plant out Jul 14 – Oct 17
Eggplant (aubergine) Mar 13 – Apr 17 May 22 – Jul 30 plant out Jul 20 – Oct 17
Cucumber Apr 15 – May 12 May 13 – Aug 16 sow Jun 28 – Oct 17
Zucchini (courgette) Apr 10 – May 7 May 8 – Aug 19 sow Jun 22 – Oct 17
Pumpkin and winter squash Apr 10 – May 7 May 8 – Jul 19 sow Jul 26 – Oct 20
Watermelon Apr 24 – May 21 May 22 – Jul 29 sow Jul 24 – Oct 17
Sweet corn – Apr 27 – Aug 1 sow Jul 8 – Oct 17
Green beans – May 8 – Aug 16 sow Jun 25 – Oct 17
Peas – Mar 24 – Apr 9 sow Jun 4 – Jul 6
Lettuce Feb 14 – Mar 14 Mar 21 – Apr 29, Aug 11 – Sep 9 sow May 24 – Jul 6, Sep 17 – Oct 31
Spinach – Mar 16 – Apr 25, Sep 11 – Sep 15 sow May 20 – Jun 30, Oct 25 – Nov 20
Kale Feb 6 – Mar 13 Mar 20 – May 26, Jun 27 – Sep 4 sow May 31 – Dec 5
Cabbage Feb 8 – Mar 15, May 23 – Jun 27 Mar 29 – Apr 24, Jul 11 – Aug 23 plant out Jun 13 – Jul 21, Sep 4 – Nov 11
Broccoli Feb 8 – Mar 15, Jun 16 – Jul 21 Mar 29 – May 2, Aug 4 – Aug 30 plant out Jun 6 – Jul 19, Sep 21 – Nov 4
Carrots – Mar 29 – Aug 27 sow Jun 9 – Dec 5
Beets (beetroot) – Mar 29 – Sep 3 sow Jun 2 – Nov 11
Radishes – Mar 20 – May 16, Aug 27 – Sep 27 sow May 5 – Jun 19, Sep 17 – Nov 4
Onions Jan 13 – Feb 17 Mar 24 – Jul 31 plant out Jun 30 – Oct 21
Garlic – Oct 10 – Nov 4 sow May 24 – Jun 13
Potatoes – Apr 4 – Jun 21 sow Jun 29 – Oct 10
Swiss chard – Apr 4 – Sep 7 sow May 31 – Nov 11
Basil Apr 5 – May 3 May 17 – Sep 3 plant out Jun 13 – Oct 17
Cilantro (coriander) – Mar 29 – May 6, Aug 27 – Sep 17 sow May 18 – Jul 4, Sep 26 – Nov 4
Parsley Feb 5 – Mar 12 Apr 2 – Aug 24 sow Jun 14 – Nov 20

Dates are for a typical year and the middle of the window is the safest. Sow a little at a time across a window rather than all at once. Cold snaps, heat waves, frost pockets and city warmth all shift the real dates; watch the forecast.

Frost dates in Omaha

Average last spring frost
April 18
Late frost (1 year in 10)
April 30
Average first autumn frost
October 21
Early frost (1 year in 10)
October 6
Frost-free growing season
185 days

“Average” is the date with an even chance of a later (spring) or earlier (autumn) frost: a night at or below 0 °C (32 °F) at screen height. Tender crops go out a week or two after the spring date, which brings the risk down to about one year in ten.

Source: NOAA 1991–2020 normals, Omaha Eppley Airfield (7 km from the city centre).

Climate at a glance

Hardiness zone
5b from station records
Average coldest winter night
-23°C-10°F
Warmest month
July, highs 31°C88°F
Coldest month
January, lows -9°C15°F
Crops with an outdoor window
25 of 25

The zone follows the USDA scheme: bands of the average lowest temperature of the year, 10 °F wide, split into a and b halves. Worked out from the coldest night of each year 1991–2020 at the NOAA station. It tells you which perennials survive winter, not when to sow.

Temperature and rain by month

Average highAverage lowRainFreezing point

Average daily high and low temperature and monthly rain in Omaha-15°5°-5°23°5°41°15°59°25°77°35°95°00.0753.0150 mm5.9 inJanuary: 19 mm (0.7 in) of rainJanFebruary: 24 mm (0.9 in) of rainFebMarch: 42 mm (1.6 in) of rainMarApril: 74 mm (2.9 in) of rainAprMay: 124 mm (4.9 in) of rainMayJune: 118 mm (4.6 in) of rainJunJuly: 91 mm (3.6 in) of rainJulAugust: 93 mm (3.6 in) of rainAugSeptember: 74 mm (2.9 in) of rainSepOctober: 57 mm (2.3 in) of rainOctNovember: 29 mm (1.1 in) of rainNovDecember: 25 mm (1.0 in) of rainDecfreezingJanuary average high: 1°C (34°F)February average high: 4°C (39°F)March average high: 11°C (52°F)April average high: 18°C (64°F)May average high: 24°C (74°F)June average high: 29°C (84°F)July average high: 31°C (88°F)August average high: 30°C (86°F)September average high: 26°C (79°F)October average high: 18°C (65°F)November average high: 10°C (50°F)December average high: 3°C (37°F)January average low: -9°C (15°F)February average low: -7°C (19°F)March average low: -1°C (30°F)April average low: 5°C (41°F)May average low: 11°C (52°F)June average low: 17°C (63°F)July average low: 20°C (67°F)August average low: 18°C (64°F)September average low: 13°C (55°F)October average low: 6°C (43°F)November average low: -1°C (30°F)December average low: -7°C (19°F)
MonthHighLowMeanRain
January1°C34°F-9°C15°F-4°C25°F19 mm0.7 in
February4°C39°F-7°C19°F-2°C29°F24 mm0.9 in
March11°C52°F-1°C30°F5°C41°F42 mm1.6 in
April18°C64°F5°C41°F11°C52°F74 mm2.9 in
May24°C74°F11°C52°F17°C63°F124 mm4.9 in
June29°C84°F17°C63°F23°C74°F118 mm4.6 in
July31°C88°F20°C67°F25°C78°F91 mm3.6 in
August30°C86°F18°C64°F24°C75°F93 mm3.6 in
September26°C79°F13°C55°F20°C67°F74 mm2.9 in
October18°C65°F6°C43°F12°C54°F57 mm2.3 in
November10°C50°F-1°C30°F4°C40°F29 mm1.1 in
December3°C37°F-7°C19°F-2°C28°F25 mm1.0 in

Monthly averages 1991–2020 from TerraClimate (about 4 km grid).

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