Hefty Brand Corn 5520 105-day Hybrid Header


Ear Type
Cob Color
GDUs to Mid-pollination
GDUs to Black Layer
Pollination for Maturity


Ear Type – Determinate
Cob Color – Red
GDUs to Mid-pollination – 920
GDUs to Black Layer – 1780
Pollination for Maturity – Early


Key early hybrid with excellent plant structure! High test weight and very good early vigor. Strong stalks and roots are the foundation to success and nice staygreen through the season. Fast drydown.


More of a determinate ear, so higher planting populations are recommended.


Fits in all rotations and soil types across northern ND and MN. Keep your populations up toward the higher end for your area. Responds well to fertility at planting.

We have had a really good run with Hefty Corn hybrids on our farm over the last several years. In fact, they have been our top-yielding hybrids for a number of years now.

Nathan, Watertown, South Dakota

I know that when I give my business to Hefty Seed Company, I can count on great yields from their products and outstanding service from their knowledgeable agronomists.

Paul, Southeast South Dakota

I first tried Hefty because of the price point. Then I put four hybrids in my competition plot with four other brands of corn. Hefty took 1st, 2nd, and 3rd in my plot. That’s when I knew I was planting the real deal!

Ben, Moses Lake, Washington

I put my Hefty corn up to my favorite Pioneer and Dekalb, and wow does it perform! I’ll keep planting Hefty!

Luke, Iowa


The higher the number, the better the performance or rating.