Bield:Farm
State agricultural overview

Oklahoma crop calendar.

Zone 7aRange 6b to 8a200-day seasonLast frost April 10First frost October 25

17 primary crops with planting windows for Oklahoma. Calendar timing is anchored to 7a dominant hardiness zone and a 200-day growing season — verify against Oklahoma State University Extension for variety- and county-specific guidance.

Row Crop · Oklahoma

Vegetables · Oklahoma

  • Cucumbers
    primary
    Spring: April 24 – May 29
  • Peppers
    primary
    Spring: May 1 – May 22
  • Potatoes
    primary
    Spring: March 27 – April 17
    Fall: August 11 – August 26
  • Pumpkins
    primary
    Spring: May 1 – May 29
  • Sweet Corn
    primary
    Spring: April 10 – May 15
  • Tomatoes
    primary
    Spring: April 24 – May 15

Forages · Oklahoma

  • Alfalfa
    primary
    Spring: April 3 – May 1
    Fall: August 26 – September 10
  • Clover
    primary
    Spring: March 20 – April 17
    Fall: August 26 – September 10

Cover Crops · Oklahoma

  • Brassicas
    primary
    Fall: August 11 – August 26
  • Buckwheat
    primary
    Spring: June 5 – July 3
  • Cereal Oats
    primary
    Spring: April 3 – May 1
    Fall: August 26 – September 10
  • Winter Rye
    primary
    Fall: October 18 – November 8

Frost-date reference — Oklahoma

Last frost (spring)
April 10
First frost (fall)
October 25
Growing season
200 days
Hardiness zone
7a

Frost dates are NOAA / NCDC climate normals — county-level variation can shift these by 2–4 weeks. The Oklahoma extension service publishes county-specific frost data: Oklahoma State University Extension.

Oklahoma soil-temp alerts.

Bield: Farm ties weather and soil-temperature stations in your county to crop planting thresholds — get notified the day soil temp clears the threshold for your target.

Download Bield: Farm
← All state crop calendars