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 – Semi-Flex
Cob Color – Red
GDUs to Mid-pollination – 1290
GDUs to Black Layer – 2450
Pollination for Maturity – Medium


Extremely high yielding conventional hybrid! National placement with an above-average disease tolerance package. Big, girthy ears are eye-catching! Great silage potential as well.


Average tolerance to common rust.


National placement line that fits on all soil types. Loves irrigation and works in dryland situations as well. Utilize a full labeled rate of a Group 15 pre-emerge grass herbicide. Push fertility levels as this hybrid responds well to added nutrition and flexes especially for girth. Foliar fungicide use as advised in areas where common rust and other diseases are normally present. Planting time insecticide is recommended in areas of the country with moderate levels of rootworm or other soil insect pressure.

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

Luke, Iowa

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


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