PPDL Picture of the Week for
July 9, 2012

Reducing Poinsettia Cutting Stress during Propagation

Roberto G. Lopez, Ph.D., Associate Professor and Floriculture Extension Specialist, Purdue University

Successful poinsettia propagation begins with high-quality cuttings and an ideal rooting environment. A spreader-stick such as CapSil can be used to help create a uniform coverage of moisture across the leaf surface of poinsettia cuttings (Figure 1) by reducing the surface tension and beading of water (Figure 4).  Apply CapSil until run-off at a rate of 300 ppm or 4 fluid ounces/ 100 gallons of water. 

For more information on how to manage cuttings during summer heat, visit: Managing Poinsettia Production through Summer Heat (pdf file)

Click image to enlarge

Figure 1. Use of a spreader-sticker such as CapSil can reduce beading of water on poinsettia leaves.

Figure 2. Water beading on poinsettia leaves.

Purdue Plant & Pest Diagnostic Lab Purdue Cooperative Extension Service