Purple Foxglove (Digitalis purpurea), fam. Scrophulariaceae.
Sometimes grown in garden beds (for example, in Makarenka street). Blooms in June. This plant is poisonous, but in a strictly defined dosage it is an ancient, known from Medieval time remedy, mostly for heart diseases. According to a legend, the speckles on the inflorescence warn about the poison that the plant contains. The old latin name has a similar root to modern computer-digital termins, because the word "digit" in West-European languages, as well as "thimble", derive from the word "thumb, finger" (the first human's counting tool).