Someone gave me a poinsettia for Christmas, and instead of throwing it out when it finishes blooming, I’m going to try to get it to rebloom.
If you want to get your poinsettia to rebloom beginning in October, this is what you need to do.
Alternate between periods of light and total darkness every single day for 6 to 8 weeks.
Daytime: keep your poinsettia in the sunniest location you have.
Nighttime: provide complete uninterrupted darkness for 12 to 15 hours a day (whatever fits your schedule).
The simplest way to do this is to find a cardboard box big enough to set over the plant with the flaps splayed on the floor so no light gets in.
You might do this right by the window or choose to move the plant each evening to a box in another room and return it to the sun in the morning.
Continue watering and fertilizing as usual during this time.
I got the above information from a very informative website called Empress of dirt. The link to the information is below.
This definitely sounds like a lot of work, but if I decide to give it a try, I will let you know how it goes. From what it says on the website, the results are extremely hit and miss, and sometimes the colors are not as bright when it reblooms the second time, so definitely don’t feel bad you just feel like tossing it out instead of putting in the work.