In this paper, we provide a survey of some plant-related proverbs that focuses on the reflection of mental patterns based on which proverbs are created in English and Romanian. The analysis of a selection of proverbs is made from a comparative perspective, by signalling the common aspects of the two languages and rendering their specific characteristics. To this purpose, we have used as a model Savin’s Romanian Phraseological Dictionary, in which the main criterion of organisation of the lexicographical items is the image created by Romanian food expressions.