Sempervivum Dallas (August) Sempervivum Dallas (July) Dallas (March) Sempervivum Dallas Dallas Pale green with pink overtones. £3.00 Out of stock. Medium-sized rosettes, pale green with pink overtones make Dallas stand out in a group. We think it looks best in summer, as pictured here - the summer sun develops the colours to good effect. There were lots of red Sempervivums and green ones too, but not so many with this pink colouring when this was introduced. Raised in the U.K by David T. Ford in 1981, when J.R. Ewing was up to his tricks on the popular TV show, Dallas. (May just be a coincidence!) Sent in 9cm pots as growing, established plants.