Final answer:
The catalogue created by Stark Brothers nursery to advertise their miniature fruit trees is part of the Promotion element of the marketing mix, which encompasses various strategies to inform and communicate with potential customers.
Step-by-step explanation:
The catalogue the nursery sends out to tell prospective customers about the miniature trees is part of the Promotion element of the marketing mix. Promotion refers to the strategies and tactics a company uses to communicate with its target market and inform potential customers about its products or services. This can include advertising, sales promotions, public relations, and direct marketing. In the case of Stark Brothers nursery, the catalogue is a direct marketing tool intended to promote their miniature fruit trees by providing customers with information and encouraging them to make a purchase.