Greenstone Holdings is a cannabis cultivation facility located in Denver, Colorado focused on growing premium genetics with care and attention to detail. No shortcuts. No bullshit. So what does that mean? - Attention to detail from genetic selection to harvest - Anal retentive plant monitoring - Sleepless nights in research and development - Years spent perfecting our soils and nutrients - Expert farmers managing every aspect of the grow. - A deep concern for consumption safety and complying with all state regulations - A great relationship with customers that’s fun, reliable and profitable for both sides.