In summer 2023, the morphometry of large adult plants of Utricularia bremii was studied in an outdoor culture and at three shallow pools in two oligotrophic sand-pits in South Bohemia, Czech Republic, with a focus on shoot length and biomass, shoot branching traits and ecological conditions. Overall, the mean length of main shoots was 34-43 cm (range 23-73 cm) and the shoots bore on average 11-18 branches of three orders. On main shoots, branches were initiated on average every 7.7-9.2 internodes, which indicates a very fast propagation and growth. A new branch is theoretically initiated every ca. 3.3-3.8 days. This study confirms that shallow, well-lit, oligomesotrophic, soft-water sand-pit pools may represent an ecological optimum for this species.