Poinsettias should retain their beauty for at least 3-4 weeks in the home. The length of time a poinsettia will remain beautiful in your home depends on:
- plant maturity
- when you purchase it
- how you care for the plant
- How do I select a poinsettia?
- How do I care for my poinsettia through the holidays?
- How do I save my poinsettia until the next year?
- Will my poinsettia rebloom next year?
- Is the poinsettia poisonous
- ?
Read more: http://www.ces.ncsu.edu/robeson/agriculture/poinset.php#select