Improper watering is one of the main reasons for decline of poinsettias over the holidays. Pythium root rot, caused by over-watering and/or poor drainage is one of the most common causes of death of poinsettia.
- Protect your poinsettia from the cold! As you carry your plant outside after you buy it, do not allow it to be exposed to the frigid air for any longer than necessary.
- Be very careful not to over-water! Water your poinsettia only when the soil becomes dry. If you stick your finger in the soil and it feels damp, DO NOT water it!
- The shiny holiday paper surrounding your poinsettia is pretty and makes a cheery display but it prevents the pots from draining properly. This wrapping should be removed whenever the plants are watered and you can place it back around the pot after the pot has thoroughly drained.