A new hybrid from Germany that promises to be a compact and low rhododendron with dark-purple flowers. This growth habit is different, as most purple flowering rhododendrons grow quite large. One can expect 'Polarnacht', which translates in German as polar night, to grow to 3 ft tall and 4-5 ft wide over time. The flowers have very frilly edges, and are a rich shade of purple with darker spotting within each flower, making them appear even darker. If you are a purple fanatic, then 'Polarnacht' is for you!