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就我所知, 聖誕花 Poinsettia 白昼要見光, 但晚上不要光(例如在路燈下也欠好).
1# 的圖片二和三, 在动物底下有部分的葉子轉紅色了.
https://www.google.com.au/search ... Q4dUDCAc&uact=5
why poinsettia doesn't turn red - Google Search
“During the day, the plant needs bright light, but it should be placed in complete darkness every evening.” |
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