Onion ‘White Utah Jumbo’ – Snow-white onions that can grow quite large when cultivated in fertile, well-prepared soil. Known as “sweet Spanish onions” due to their mild and slightly sweet flavor. Onions can be harvested and eaten at any stage, but for storage, only fully mature bulbs should be collected. Sow from early to late spring in open ground in rows. Onions perform best in fine, loose, and sufficiently moist soil.