By Mazdrew
United Kingdom 
My pot of ornamental black grass has turned green! why?
11 Aug, 2013
Answers
Self seeded Ophiopogon etc. work out as about 2/3 black and 1/3 green.
11 Aug, 2013
Ah...... Thank you
11 Aug, 2013
Occasionally, in the height of summer, especially if the plant's in shade, it'll do that. However, sometimes, part of the potful might have been green and it's taken over from the black form you bought, being naturally more vigorous.
11 Aug, 2013