Pretty pink backed and pink flushed double form, with deeply notched petals. The flowers create a pom-pom effect.
Unusually sourced from Japan, despite the English name.
Our collection of semi-double sieboldii all exhibit a variable trait on the extent of the double-petalling. In good weather years the flowers will show the double nature fully. In poor weather seasons the flowers will often revert to single blooms for the year, or the double petals will be very much smaller.