Ah, I hadn't realised you were from that side of the pond Harold.
Yes, C.reginae is a native to your country so it would grow wild there,
but
Someone tell me different, please, I really want to grow it, it's such a
beautiful plant
========================
From what I have seen the only difference is the colour of the flower...do
not believe you see a difference in the leaves.
Growing them is not difficult if you have the right conditions.....my few
plants self seed in "dirt".....I usually use that word in place of soil as
that is what my little chunk of property consists of.....a sand lot left
over from the last ice age.......the top six inches is fairly acidic and
spongy from the pine needles over the years and beneath that is
sand....note...sand not sandy.

HW.