SUMMER HARVEST. Expect early and extra tender leaves from Tiara cabbage seeds. An improved early first cabbage with wonderful hybrid uniformity and excellent holding ability. Tiara supports a dense cabbage head with a short internal core. This cabbage holds well in the field. Tiara cabbage is green, medium sized, with thin, tender leaves that would make a perfect addition to your coleslaw or salad. This may be one of the best cabbage varieties for sauerkraut. Learn when to plant cabbage seeds in our How to Grow Cabbage instructions below. Tiara cabbage seeds produce plants that are mature in just 45 days from transplant.