I got this plant from Tom Nuccio. Tom told me that he got it from a person named Perkins under the name ‘Gingetsu’. Obviously this plant is not ‘Gingetsu’ because the real ‘Gingetsu’ is a well-known white Camellia sasanqua, from Higo-sazanka group of cultivars, originated in Japanese province of Kumamoto.
I suspect this misnamed ‘Gingetsu Perkins’ might be a cross between C. sasanqua and C. reticulata. Its flower size is unusually big for sasanqua, but it has a good sun tolerange. It is also fast growing, upright and somewhat loose. It is much easier to cross C. sasanqua with C. reticulata than to cross C. sasanqua with C. japonica because of their chromosome counts. Both C. sasanqua and C. reticulata usually have 90 chromosomes, while C. japonica – just 30. For more information about Camellia chromosomes see Camellia sasanqua botany (with pictures).
One of my ‘Gingetsu Perkins’ plants got what looks like a bud mutation, and produced a flower with petaloids: