The main purpose of this paper is to determine the impact of green marketing elements on the consumers purchase decision and to investigate consumer trust in green communication. The paper defines the concept of green marketing and briefly describes its history, also, it lists the different types of green strategies that companies can use. The marketing efforts of environmentally conscious companies can be analysed through use of the elements of the "green" marketing mix: product, price, distribution, and communications, which are also included in the paper. Given that "green" communication is the most controversial and most criticized element of the marketing mix, this element is discussed in more detail and, among other things, the paper deals with the problem of "greenwashing" and mistrust by consumers. In order to understand how ''green'' consumers make purchasing decisions, it is necessary to understand their buying behavior and understand the factors that drive them. The paper also gives examples of segmentation of "green" consumers based on their characteristics such as attitudes about environmental issues, environmentally responsible behavior. The results of the research confirmed that the elements of "green" marketing influence the purchase decisions, most of which are influenced by the element of "green" communication. Also, consumers showed trust towards ''green'' communication. The impact of the elements of green marketing and confidence in green communication differs significantly depending on the level of the green consumer segment. Specifically, the impact on the purchase decision and the level of trust is higher in respondents with a high level of the green segment.