This post is part of the Science Tuesday feature series on the USDA blog. Check back each week as we showcase stories and news from USDA’s rich science and research portfolio.
Poinsettias are more than just an icon of the Christmas season. They’ve become the go-to plant for decorating homes, hotels, offices and just about everywhere from the Friday after Thanksgiving to well past New Year’s Day.
This wasn’t always the poinsettia’s story. In the 1950s, poinsettias were flashy plants that made a brief appearance in public places shortly before Christmas, only to drop their leaves and colorful flower-like bracts a few days later. They were expensive to grow because their blooming time was difficult to synchronize with the holidays, and the plants easily grew tall and leggy.