My Darwin's barberry never exceeded 4 1/2 feet tall, but others report heights to 10 feet. Fortunately, a barberry can be pruned to about a foot tall to freshen it, erase earlier mistakes or keep ...

Darwin’s barberry is a resilient noxious weed found in disturbed forests, pastures, shrubland and short tussock-land. It is a threat to indigenous ecosystems throughout the country, as well as ...