Eureka Ensilage Corn is a venerable open-pollinated dent corn variety that has nearly vanished from commercial seed catalogs, making it a genuine rarity in today's gardening world. This heirloom grows 72-84 inches tall and reaches harvest maturity in 110-120 days, producing massive quantities of silage for livestock while thriving in heat and drought-prone regions. Its longevity as a working farm variety speaks to its resilience; True Leaf Market reports being among the very last seed companies still offering this great old variety.

Photo © True Leaf Market
10
Full Sun
Moderate
2-13
84in H x ?in W
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Moderate
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Eureka Ensilage is an exceptionally old heirloom that produces huge amounts of silage, making it invaluable for farmers and homesteaders with cattle or goats. The stalks grow tall and robust in hardiness zones 2-13, tolerating both heat and drought conditions that would stress modern hybrids. Its status as an open-pollinated, non-GMO dent corn means seed savers can preserve it year after year, keeping this nearly-extinct variety alive in home gardens and small farms.
Eureka Ensilage is grown specifically for silage production, where the entire plant at the milk-dough stage is chopped and fermented as livestock feed. The abundant stalks and foliage create substantial dry matter yields suitable for cows, goats, and other ruminants. Home-scale growers and small farms use it as a renewable, seed-saveable alternative to purchased commercial silage corn hybrids.
No timeline data available yet for this variety.
Direct sow Eureka Ensilage seeds into warm soil after all frost danger has passed and soil temperature reaches at least 60 degrees Fahrenheit, planting at a depth of approximately 1 to 1.5 inches. Sow seeds 10 inches apart in rows spaced 36 inches apart.
Harvest Eureka Ensilage for silage at the milk-dough stage, approximately 110-120 days after planting, when the kernels have filled but still contain moisture. At this stage, cut or chop the entire stalk including leaves and ears for maximum nutritional content. The plant should reach 72-84 inches in height at maturity.
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“Eureka Ensilage is a very old variety with deep roots in American agricultural history, though the specific details of its origin have largely faded from modern records. Its survival owes much to its reputation as a reliable silage producer for livestock operations, a role that kept it in use on farms for generations. The fact that True Leaf Market identifies itself as one of the very last seed companies carrying this heirloom underscores how close Eureka Ensilage came to disappearing entirely as industrial corn breeding shifted toward modern hybrids. Its preservation today rests largely in the hands of dedicated seed savers and heritage-focused seed companies committed to maintaining genetic diversity in agriculture.”