The aim of the present study was to contribute knowledge about how adult L2 learners perceived their possibilities to use and develop the target language (Swedish) when formal language teaching was combined with placements. Situated in the context of Swedish for Immigrants (SFI), the study drew inspiration from action research and ethnographic methodology. A thematic analysis was conducted underpinned by the systemic-functional linguistic concepts of field, tenor and mode. The findings showed that the students highly valued interaction with L1 Swedish speakers outside of the classroom. Several of the students described rich opportunities to interact socially, which, however, also entailed anxiety about their status as L2 speakers. A few of the students reported accessing field-specific language and literacy practices that aligned with their current career goals. However, students with placements relating to kitchen, garage and warehouse work voiced feeling isolated and having little opportunity for social interaction. While students in the first of two course instances found it difficult to discuss and exemplify language they had learnt, a vocabulary assignment developed for the second course instance facilitated discussions about placement-related words and expressions. Implications for teaching are discussed, including using authentic examples of workplace discourse as preparation for placement visits.