There are a lot of plants known colloquially as ‘naked ladies’. It seems that almost anything that flowers without its leaves might be called such by gardeners somewhere in the country.
Nerine bowdenii is the easiest and most commonly grown member of the genus.
It will grow pretty much anywhere in the UK, as here in the walled garden at Cambo Gardens, Fife.
A sunny position that is dry in summer will ensure a good show of flowers.