Sorry, I can not type chinese now/ f' z) J8 j- z0 U2 P' v7 r. _
/ Y' |" I+ R3 d3 N! C5 |9 G# {+ r; D: xBut, I put the poinsettia in a seperate room which should have more than 10hrs black time. Maybe it need more sun light?
at least 10hrs darkness, you can treat it 10~14hrs or longer ,it does not a matter, just a couple of hrs of sun light. and hopefully it can change corlor 3 weeks later till x-mas day.