On Sun, 14 Feb 2010 12:39:58 -0000, "Plum"
wrote:

I know this is not strictly a home-growing question, but does anyone know
why the "sweetheart" or "pointed" cabbages in the supermarkets are suddenly
white instead of green? In the winter, you need to eat your greens, not
whites.

Programme on telly tonight showed them cultivating Bean Sprouts and
they were under green lighting to stop photo synthesis so that the
sprouts grew white rather than green .

These the ones you mean ...green outside and white inside .
http://www.thompson-morgan.com/seeds1/product/394/1/