get poinsettia to change color
Thanks to you, my poinsettia is growing well. How do I get it to change color in time for Christmas? When do I start?
Certified GKH Gardening Expert
This is controlled by, both, genetics, and hours of light. These must be exposed to at least 12 hours of darkness to produce floral clusters, and color change. This article will help: https://www.gardeningknowhow.com/ornamental/flowers/poinsettia/poinsettia-care-how-do-you-take-care-of-poinsettias.htm