State agricultural overview

Delaware crop calendar.

Zone 7a
Range 7a to 7b
195-day season
Last frost April 15
First frost October 25

17 primary crops with planting windows for Delaware. Calendar timing is anchored to 7a dominant hardiness zone and a 195-day growing season — verify against University of Delaware Cooperative Extension for variety- and county-specific guidance.

Row Crop · Delaware

Corn
primary
Spring: April 15 – May 6
Grain Sorghum
primary
Spring: May 6 – June 3
Soybeans
primary
Spring: April 29 – May 20
Sunflowers
primary
Spring: April 22 – May 20
Winter Wheat
primary
Fall: October 18 – November 8
Cotton
secondary
Spring: April 29 – May 20

Vegetables · Delaware

Cucumbers
primary
Spring: April 29 – June 3
Peppers
primary
Spring: May 6 – May 27
Potatoes
primary
Spring: April 1 – April 22
Fall: August 11 – August 26
Pumpkins
primary
Spring: May 6 – June 3
Sweet Corn
primary
Spring: April 15 – May 20
Tomatoes
primary
Spring: April 29 – May 20

Forages · Delaware

Alfalfa
primary
Spring: April 8 – May 6
Fall: August 26 – September 10
Clover
primary
Spring: March 25 – April 22
Fall: August 26 – September 10

Cover Crops · Delaware

Brassicas
primary
Fall: August 11 – August 26
Buckwheat
primary
Spring: June 10 – July 8
Cereal Oats
primary
Spring: April 8 – May 6
Fall: August 26 – September 10
Winter Rye
primary
Fall: October 18 – November 8

Frost & extension reference

Delaware climate anchors.

Last frost

April 15

First frost

October 25

Growing season

195 days

Hardiness zone

Delaware county-level frost dates →University of Delaware Cooperative Extension →

Delaware planting timing. Live alerts.

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

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