An application of public goods-based theory that describes the process of alliance based, inter- organizational communication and information public goods. Bureaucratic organisations which develop Indonesia floriculture promote alliance by the activation of networking as a forum for coordination. One of them is anorchid consortium. This is a new cooperation system which is developed to synergize various drive components in the orchid floriculture development. The research objective is to identify factors influencing the effectiveness of alliance communication in the orchid consortium. The research framework was organised around Monge's: the goods, the participants and the action processes. This study used census and sample design as a source of information drawn from the entire population. Primary data were collected from individual consortium participants using a questionnaire to identify relationships and communication networks. The Spearman Rank correlation statistics was used to analyse the relationship between the variables, while Ucinet 6 software was used to assess the activity of the communication network in the consortium. Increasing of individual resources through non-formal education and kinds of knowledge; increased use of connective and communal goods including communication media types and frequency of communication media use; and improvement of the collective action process, the importance of density and centrality in improving the effectiveness of organizational communication within the consortium orchid as a coordination among stakeholders in the national orchid floriculture development which are competitive and sustainable. All the hypotheses were accepted.