Originally, 'Kanza' nuts were regarded as too small and not the proper shape for a commercial pecan cultivar. Pecan scientists across the south began removing 'Kanza' from their cultivar trials. A single tree was grafted to Kanza at Pecan Experiment Field in 1964 and that tree now stands proudly as the oldest Kanza tree in the country. The moral of this story is, that sometimes, its takes decades to see the true value of a new pecan cultivar.
One of the reasons it takes so long to develop and test new cultivars is because it takes 18-20 years to grow a pecan tree to 10 inches in diameter. However, waiting until a clone reaches it full potential is the only way to be certain a cultivar will perform in the long run.