Despite the rising prevalence of hypertension, the subsequent increase in incidence of cardiovascular, cerebrovascular, and renal events attributable to high blood pressure (BP), and the availability of effective treatment, BP control rates remain low. Although there are many causes of poor BP control, patients' lack of awareness of the consequences of uncontrolled hypertension and patients' lack of adherence to treatment continue to create significant barriers which prevent successful hypertension management. The objective of this study is to evaluate the hypertensive patients' (in)formative needs in order to develop an educational intervention aimed at improving the adherence to hypertension treatment. Questionnaire and focus group are used to collect patients' needs. Results suggest the development of an educational intervention consisting of group sessions where patients can share opinions and feelings together with one-to-one session, based on patients' needs assessment.