Although they are known as Autumn Crocus, Colchicums are not from the crocus family, but are in fact relations of the lily. Their leafless flowers, hence the name Naked Ladies, emerge in early autumn and are indeed shaped like a large crocus. The foliage will not appear until spring, which makes a handy reminder that they are still there. Can look good naturalised among grass. Plant 20cm deep 20cm apart 25 per sq metre.