Yellow Granex Hybrid SD onion seeds produce premium short-day varieties with exceptional sweetness and mild flavor profiles. These flattened globe-shaped bulbs develop best when planted in fall for southern regions, maturing in approximately 165 days. Ideal for zones 7-10, they require 10-12 hours of daylight for proper bulb formation. Superior disease resistance and uniform sizing make this hybrid particularly valuable for commercial growers. Performs best in well-draining, fertile soil with consistent moisture and proper spacing for maximum bulb development.