'Devil's Touch' is a new British variety by Sue Thomas (2009). This unusual form has proved extremely popular with sempervivum collectors throughout mainland Europe and in the USA. After high placings in 2016 (5th), 2017 (3rd), and 2018 (2nd), it won Sempervivum of the Year 2019. Olive green, changing to deep red-brown tones during the warmer months.