Sterile cultivars (or close to it) ― is this a viable option for the nursery industry?^©

INTRODUCTION
Some popular landscape plants have proven over time to exhibit invasive tendencies. The realization that these plants are invasive has led to legal bans of known invasive ornamental species in some states. For example, Berberis thunbergii and Euonymus alatus have been illegal to grow, sell, and transport since 2004 in New Hampshire and since 2009 in Massachusetts. In 2013, New York began a legal phasing out of Berberis and Euonymus, and Minnesota and Wisconsin have initiated partial bans on the most fecund Japanese barberry cultivars.