These varieties are very sweet and unusually crisp textured to eat, though recent developments have yielded varieties with more tender textures.
This recessive gene results in the production and retention of unusually high natural sugars and is commonly called supersweet or extra-sweet corn. The supersweet gene is the drastic mutation of field corn known by breeders as shrunken or shortened to sh3. There are five basic genetic types of sweet corn we offer:ĭiscovery and development of new genes for eating quality in sweet corn are ongoing. Throughout the breeding and testing period, constant attention remains on the most desirable characteristics featured in Harris' sweet corn seed varieties seed vigor in the cold soils, disease resistance levels, dark green flag leaves, husk and ear appearance and eating quality. The most promising experimental are grown in trials throughout the country to test their adaptability before they are named and offered for sale. New hybrids are tested for several sweet corn diseases each year to ensure intermediate resistance or resistance. The hybrids of today are far superior in eating quality compared to heirlooms, open-pollinated and older sweet corn hybrid varieties. Sweet corn has evolved over the last twenty years, turning into superior varieties with high eating quality and disease resistance. If your area is experiencing particularly hot and dry weather, make sure to water more frequently. Make sure the soil doesn’t dry out between waterings. Once the tassels appear, you should provide at least one inch of water per week. Sweet corn requires frequent watering to produce full, healthy ears. You can check soil temperature with a soil thermometer and sunlight, soil PH, moisture, and fertility levels can be verified with an electronic soil analyzer or soil testing kit. Plant sweet corn seeds approximately one inch deep, spaced about 9-12 apart in each row in soil with a temperature of about 60 degrees or above.
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A wide variety of genetic types including normal sugary, sugary enhanced, supersweet, synergistic and Sweet Breed sweet corn seed types are available.Ĭorn seeds should be planted in a spot that receives full sun, in well-draining soil. Choose from over 85 sweet corn seed varieties - bicolor sweet corn, yellow sweet corn and white sweet corn. Look to Harris Seeds for the best selection of sweet corn seed varieties around. Sweet Corn Genetic Type Compatibility & Isolation