We present the design of an educational treasure hunt game that uses mobile Augmented Reality (AR) and adaptive virtual gardens to raise awareness on energy consumption ways. Within the game, AR is used to present 3D content that allows for visually understanding the energy consumption problems and their solutions. In addition, the players' performances are given in a form of a visual feedback as dynamic virtual gardens that change from poor to good status. Initial tests show that the presented game is highly appealing to players and motivated them to be aware of the presented problem using AR technologies and the visual effects of their virtual garden's health. Future work will focus on evaluating the learnability and engagement of players.