I recently read an article on Safety Culture, written by a member of Event Safety Alliance (USA). In the article he describes the two definitions of 'culture':

As a noun: The behaviours & beliefs of a particular social, ethnic or age group.

As a verb: To maintain an organism in conditions suitable for growth.

From a health & safety perspective, combining these two descriptions results in the perfect scenario! First, we provide the behaviour & beliefs through policy, procedure and modelling from leaders. Then, we 'culture' this with support, communication and encouragement. The 'conditions suitable for growth' should include: the opportunity to be heard (e.g. contributing to discussion during team meetings), the knowledge to contribute effectively (provision & sharing of information from leaders), the opportunity to up-skill (training can be in-house or through other providers), and above all, a caring environment (people perform better if they feel valued).

So 'culture' that Safety Culture!