Astronomy Domine is a stunning multicolored sweet corn that lives up to its cosmic name, with kernels that develop an amazing display of vivid colors at milk stage. This early to mid-season heirloom variety matures in 65-70 days and delivers old-fashioned sweet corn flavor alongside nutrient density that makes it a standout choice for home gardeners. Joseph Lofthouse selected this nutrient-dense strain in Utah from the original landrace created by Alan Bishop at his southern Indiana farm, where Bishop had crossed several sweet corn cultivars through careful mass selection to achieve this genetic treasure.
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Moderate
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Moderate
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You'll find kernels in a rainbow of hues across each ear, making Astronomy Domine as beautiful as it is delicious. The complex flavor profile carries the classic sweetness of traditional corn varieties, backed by the nutritional depth that comes from careful heirloom breeding. At the milk stage, the ears develop their full color spectrum early, giving you a precise window for harvest and a stunning visual reward for your garden space.
Astronomy Domine shines as a fresh eating corn, best enjoyed at the milk stage when the kernels have developed their full color palette and sweetness. The old-fashioned flavor works beautifully in traditional corn preparations: grilled on the cob, cut fresh into salads, or cooked simply to let the natural sweetness speak. The visual drama of the multicolored kernels also makes it an appealing choice for farmers' market growers and home gardeners who value both flavor and the ornamental quality of freshly harvested ears.
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Direct sow seeds outdoors once soil temperature reaches 60 to 75 degrees Fahrenheit and the frost danger has fully passed. Plant seeds at the appropriate depth and thin seedlings to 6 inches apart once they emerge.
Harvest Astronomy Domine at the milk stage, when kernels have developed their full spectrum of colors and pierce easily when pressed with a fingernail, releasing a milky juice. This typically occurs 65-70 days after planting. Pick ears by twisting and snapping them cleanly from the stalk in the early morning when kernels are plump with moisture. The early color development makes this variety easy to identify at peak ripeness.
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“Astronomy Domine traces its roots to Alan Bishop's southern Indiana farm, where he began crossing several sweet corn cultivars to develop a multicolored variety with both flavor and nutrition at its heart. Joseph Lofthouse, working in Utah, recognized the promise in Bishop's original landrace and selected and refined this nutrient-dense strain through subsequent generations, preserving the genetic diversity and complex flavors that make it distinctive. The variety carries within it decades of careful observation and seed saving, representing the kind of patient, place-based agriculture that heirloom corn embodies.”