Rosettes pale green becoming red and yellow in spring.
'Sunburst' is a lovely sight in spring when the normally pale green rosettes start to become flushed with red and develop distinctive yellow centres. The rosettes are medium to small in size but produce enough offsets to make good clumps. It makes a lovely specimen in a clay pan, ideal for an alpine house or a cold, well-ventilated porch or conservatory to see it at its best, although it is hardy.
A wonderful variety but seldom offered.
Note, April 2018. We have had this plant for about 30 years under the name 'Jubilee Tricolor' and have been unable to discover much about it until recently. It's quite a rare plant. I now believe it is in fact 'Sunburst'.
'Sunburst' was bred by Mark C. Smith in the UK around 1970. He also bred 'Rosie', which we also grow, that same year), but the name 'Sunburst' was actually given by Mary Mitchell. 'Sunburst' is certainly a more descriptive name and suits the plant well.
'Jubilee Tricolor', according by my research, doesn't turn pale green in summer, remaining reddish, when 'Sunburst' will always turn pale green in summer, without exception.
It is notoriously difficult discovering the correct name of unknown Sempervivums as so many are alike and their histories (source or parentage) are unrecorded. In fact, the major American forum for Semps insists on calling any plant which cannot be accurately identified a NOID. That stands for No Id or no identification - a useful shorthand.