Late Flat Dutch produces huge heads up to 30 lbs! They have great flavor- one of the best for sauerkraut. Great variety for storage and processing. Special Instructions: Heirloom cabbage will do well in heavy clay soil, although it prefers a rich heavy loam. It loves to be planted in areas where large amounts of composted manure has been worked into the soil bed. Remember not to plant cabbage seed in the same place year to year. It prefers a soil pH between 6.0 and 7.5 for optimum growth.