Originally posted by 海棠 at 2005-11-30 04:54 PM: : T; Z, w. C. G. Q: a5 t0 e) q去年买的一品红, 顶上的叶子是红的。 今年夏天老叶子掉了,发出来的新叶子都是绿的。 不知道这个红叶子是发出来得时候就是红的呢,还是绿叶子老了变红的?眼看就到圣诞节了,一品红为什么还不红?
Sorry, I can not type chinese now 7 Z; x: t8 g4 H) t' Z# n 6 B% h' V8 k# W1 j9 K" k eBut, 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.