NIASA is an independently audited best management practice program for production nurseries and growing media manufacturers. Forming the core of a suite of programs NIASA has been trusted for over 25 years. Today the risks around sourcing plant stock are increasing; plant health and biosecurity, true to type and social licence issues, to name a few. However, sourcing your plant stock from a professional NIASA accredited nursery is a clear sign that you are managing your risk in plant sourcing.