Flowering Cabbage Seeds - Osaka Series91 98 days. Osaka Series flowering cabbage seeds grow a classic and elegant swirl of color perfect for any cool season garden. Osaka Series seeds mature into tight 11 12 tall flowering cabbages bursting with Pink, Red, White, or Mixed. Osaka Series belongs to the capitata group or headed variety of cabbage and boasts a flowery and showy mound that still resembles the tight compact store bought heads. Osaka Series seeds grow dazzling and vigorous frost