Drying of blooming leafs on tips

by Cory Stephens
(Prince Rupert, Canada)

We purchased a poinsettia two days agoand the ends of the red blooming leaves are drying up and turing black. We did not expose the plant to cold weather. And we have carefully managed the watering to not over-water or not enough watering (ie. We used the finger wetness test daily). Also, we have the plant located in a bright location.

What do you think might be the problem?

Doug says that leaf tips and bracts turning black is normally from moving from a high-humid environment such as a greenhouse to a very low-humidity environment such as a house in the middle of winter.

There are other causes but that's the biggie.