Unwrap your Poinsettia Right Away
If there is normally no problem leaving plants purchased for Christmas in their wrapping for 4 or 5 days, that is not the case with the popular Christmas plant known as the poinsettia (Euphorbia pulcherrima), often offered as a hostess gift during the holiday season. This plant produces ethylene, a toxic gas, and begins to poison itself in as little as 16 hours if there is no or little air circulation. Soon the bracts fall off and the plant, although it is not necessarily dead yet, won’t be very presentable. If you plan to offer a poinsettia as a gift, but not for a few days, unwrap it immediately when you get home and rewrap it just before you leave.