G90 Sweet Corn is a hybrid sweet corn variety that has been a staple on many homesteads and farm stands for years. This variety is vigorous, reliable and easy to grow. G90 is a standard (su) corn variety, which means it has the traditional corn flavor with moderate sweetness. These standard varieties usually hold well for 3-4 days after harvesting, but can become starchy after that. As a result, it’s a good idea to consume or process them in a timely manner after harvesting. G90 plants can reach 8′ tall and produce ears that average 9″ long.
Sweet corn should be planted in the spring after the last frost date. Sweet corn can be grown throughout the warmer months up until fall, as long as time is permitted for harvest before first frost. Succession planting is recommended with at least two plantings, one in early spring and one in late summer/early fall. Corn ear worm pressure will be greater in the warmer months, but this can be alleviated by applying spinosad to silks and tassels once they appear.
We recommend planting sweet corn using a walk-behind planter like our Hoss Garden Seeder. Once plants emerge, thin plants to 6-8″ depending on adequate irrigation. If drip irrigation is used, in-row spacing may be as close as 6″. If water is scarce, a wider in-row spacing will be necessary. For pollination purposes, corn should be planted in a square plot with rows on 30-36″ spacing. Planting a few long rows will result in poor germination and absence of kernels on the cobs.
G90 Sweet Corn Planting Information
Planting Method: direct seed
When to Plant: after last frost
Planting Depth: 1″
Seed Spacing: 6-8″
Row Spacing: 30-36″
Days to Maturity: 85
Disease Tolerance: None