Continuing a study of the alkaloids of cultivated species of the genus Aconitum L., we investigated the hypogeal organs (rhizomes with roots) of A. anglicum Stapf (period of withering of the phytomass and ripening of the seeds, resistant to Subarctic environment and capable of seed renewal) and A. raddeanum Rgl. (period of the beginning of the aftergrowth of the epigeal part, flowers irregularly and does not produce ripe seeds in PABS) cultivated in the Polar-Alpine Botanical Garden (PABS). For A. anglicum (1140 g dry raw material), alkaloids were extracted with chloroform after sodium carbonate treatment, followed by acid treatment and alkalinization, yielding 2.9 g (0.25%) of alkaloids. Chromatography separated songorine and songorine N-oxide, identified by mixed melting point, TLC, IR, mass, and PMR spectra compared to authentic specimens from A. firmum and A. monticola. For A. raddeanum (312 g dry raw material), similar extraction yielded 3 g (0.95%) of total alkaloids. Chromatography on alumina gave base (1) (C25H39NO5, identified as 14-acetylsachaconitine via spectral agreement), base (2) (C23H37NO4, identified as sachaconitine via spectral comparison and acetylation to 14-acetylsachaconitine), and atisine chloride (identified via mixed melting point, IR, and mass spectra compared to authentic specimens). This is the first study on both plants.