Sugary Enhancer Hybrid (SE). The SE gene (sugary enhancer) means these varieties will stay sweet and tender for 10-14 days after reaching maturity. No need to isolate from other sweet corn. Ready to harvest in just 75 days, Silver Choice is two weeks earlier and 20% sweeter than Silver Queen! Tender 8" ears are filled with 16-18 rows of juicy, sweet kernels right to the tip. Plants grow to 7 ft. Garden-fresh sweet corn is summer's greatest pleasure. Plant corn in blocks at least four rows wide for cross-pollination and well-filled ears. Seeds are not treated.