This plant must be the most widely grown perennial in Cornwall, U.K., and can be seen on roadside garden walls everywhere. It was produce...Read Mored at Cannington horticultural college, U.K. I think it may be a cross between Nairobi Purple and White Pim - it certainly looks half-way between, and is intermediate in hardiness.
The flowers are white suffused with purplish pink, with a dark purple disc, and are produced en masse in the Spring and regularly through the summer and fall. In mild sunny places it produces a few flowers through the winter - these are darker pink.
It is only hardy to about -7C and only seems to be grown successfully in Cornwall.
This plant must be the most widely grown perennial in Cornwall, U.K., and can be seen on roadside garden walls everywhere. It was produce...Read More