Dying photinia

Question

I planted 9 dwarf photinia 12 months ago. Started by digging a trench a filling it with a soil and general compost mix. The leaves on 7 of them have recently gone all red and the photinias seem to be dying. They are exposed and are planted alongside a pavement and road (see photo). Can you advise what will have caused this problem and whether there is anything I can do to save the plants. Many thanks

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Answer 1

This is the natural coloring and leaf progression for the Red Tip Photinia shrub.
Here is an article to refresh you on the care of this shrub.
https://www.gardeningknowhow.com/ornamental/shrubs/photinia/growing-red-tip-photinia.htm