The Rock is, as the name implies, a very firm onion that is also extremely vigorous. The Rock is a very late season yellow variety that stores well. It is extremely productive, has a high percentage of single centers and a rich brown color. Specifications Classification Variety: yellow spanishSize: Super ColossalColor: YellowDays to maturity: 140 Statistics Day Length: longShape: tall globeSing Center: Very HighStorage: 6+ Disease Bolting: HTFusarium: GTPink Root: HT Product Images Downloads PDF Flyer: Crookham Celebrate Onions The Rock.pdf Compare To Joaquin Download High Res Image