Swap a poinsettia’s standard plastic pot for a basket lined with moss. You can hang it inside or out for a unique Christmas display. We love poinsettias for their range of colors and sizes. They’ll offer nonstop color well into the New Year if you place them in a cool, well-lit room and keep the soil moist but not wet. Big no-no: Don’t let plants sit in a water-filled sleeve―they’ll rot.