I want to root photinia cuttings. Should I use new growth cuttings? What do you consider the best method to get them to root? What root stimulator (if any) should I use? Any other advice?
Certified GKH Gardening Expert
The following article should be of some help to you (towards the end): https://www.gardeningknowhow.com/ornamental/shrubs/photinia/growing-red-tip-photinia.htm