For KarenSusan63(comparison)Lewisia Little Plum as photographed at National Trust, Emmetts Garden today

Yup, must say...looks exactly the same as mine Paul!

Perhaps they also got theirs from Dobbies!! ;)

Strangely , there was a plant label(just the normal sort you get when buying from shops/GC) but don't think it had a nursery/company name on it!

Bulbaholic has sent a reference to another blog, and it does look like I have a Little Plum after reading about it. Apparently there is some variation in the colour on this plant, and it generally comes fairly true from seed. So I think I'll go back and undo my labelling and put it back to where it was at the start!

Ha ha! Good detective work, Karen!