The focus of the article is on phraseological units in languages with various structural variations and their national and cultural peculiarities. The study's data consisted of English phraseological units with a phytonym component that were collected from works of fiction and phraseological dictionaries of explanatory dictionaries in the language. The evaluative aspect of phraseological units' meaning in the languages under study was the study's primary goal. The authors examine how the category of evaluation is applied to phraseological units in English that have a phytonym component, as well as the positive, negative, and neutral evaluative implications of phraseological units in languages with different structural arrangements. This study uses English phytonymic phraseology to describe mental phenomena that are specific to certain ethnic groups. The paper offers a comparative study of the structural and semantic aspects of phraseological units in the English languages, identifies common and particular characteristics of the cultural meanings associated with phytonyms, as well as common and particular characteristics of the way abstract concepts are conceptualized and the internal and external characteristics of an individual in the languages under study. The analysis of the chosen phraseosemantic groups showed that a sizable portion of English phraseological units with phytonym components are stylistically reduced units. Since more vivid emotional experiences are brought about by negative phenomena in the surrounding reality, the majority of these phraseological units have both the semantic feature of expressiveness and a negative evaluative semantic feature.