Silver King Corn Seed

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Our price: $2.99
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Silver King Corn Seed (105 days)

This heirloom variety is not a sweet corn. Do not confuse this heirloom variety with the hybrid sweet corn that's being sold under the same name by other seed companies. 

Also known as "Wisconsin #7"

Historically, J. A. Beagley of Sibly, IL is credited for originating Silver King in 1890.

Further developed by the Wisconsin Experiment Station. 

Offered to the open seed market by the L.L. Olds Seed Company in 1907.  Although John A. Salzer Seed Co. makes the same claim about Silver King.

In 1907 at the experiment station Silver King was recorded to produce 98 bushels per acre.  A real record at the time using organic fertilizers. 

Ears average 8-9 inches.  Very uniform and "always full to the tip".  Compact straight rows.

A strong grower especially adapted to resist cold weather.

Was historically grown in Iowa, Wisconsin, Minnesota, South Dakota, Illinois, Indiana and Ohio.

As described by LL Olds in 1910...
"In appearance the corn is a beauty.  Ears just the right length, averaging 8 to 9 inches, always filled out clear the tips, and very uniform in size and type.  The corn is pure snow-white in color with good length kernels set compactly in straight rows.  The corn is a strong grower, early enough to mature as far north as Oshkosh, WI and is especially adapted to resist cold weather.  It has a decided double ear characteristic, one reason for its fine yield records."

Original 1910 photo is shown from L.L. Seed Company


Seed Planting Depth

Seeds per ounce

Germination Temperature

Days to Germination

Row Spacing

Plant Spacing

100' Row Yield


1-2" 75-85 70-80 4-8 12-24" 6-8" 15 lb. Full

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Planting Tips:

When to Plant Heirloom Corn Seed:  The most common mistake people make is planting corn seed too early, making the seed rot in the cold soil.  Heirloom corn is believed to have originated in Mexico.  If you are thinking margaritas, palm trees, and hot sandy beaches, you are on the right track.  Heirloom corn hates the cold.  There are a few corn varieties that you can put in the soil when it's below 65 degrees, but not many.  If you want to get a jump start on corn, plant in the greenhouse and transplant corn to the garden later when ALL DANGER OF FROST IS PAST.  Do not let these corn transplants get much bigger than 4-6"s or they will not develop properly later.  Make sure what you plant your corn seed in has nice deep trays and try not to disturb the roots too much when transplanting your heirloom corn seedlings.

Planting heirloom corn seed: 
Corn does best on a deep, well-drained soil which has an abundant and uniform supply of water throughout the growing season. 

Fertilization:  The Indians were dead on when they planted a fish under every corn plant.  Heirloom corn is a greedy feeder and will produce much better with an ample supply of nitrogen.  I plant plenty of fava beans in the spring and chop them into the ground a few weeks before I plant corn seed.  Favas put amazing amounts of nitrogen into the ground naturally and without harsh chemicals.  I also work in plenty of composted manure and a bit of bone/blood meal.   Many folks use alfalfa in the same way as fava beans for excellent results with corn..

Bulk Heirloom Corn Seed For Sale:  You will find many of our heirloom corns in bulk quantities for sale.  We have tried hard to locate as many quality heirloom corn varieties as possible.  The greatest expense these days is shipping bulk heirloom corn wholesale because of the high fuel prices and the heavy weight of bulk corn quantities.  

Seeding Rate:

17,000-25,000 plants/acre, 14-20 lb. per acre.

Heirloom seeds are hardy, but always take care with your garden seeds to give them the appropriate amount of moisture - don't let the vegetable seeds dry out prematurely, and don't overwater and possibly have them rot.

Developmenalt Problems:

Many strange things can happen to corn when it is developing from seed emergence to harvest time.  This poster (to the right) from Ohio State University gives you a good illustration of what can and does happen.

This link from OSU is an excellent resource for troubleshooting potential issues with your corn as well: http://agcrops.osu.edu/specialists/corn/specialist-announcements/ear-abnormalities/troubleshooting-abnormal-corn-ears-and-related-disorders#LowTemp


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