Only trim during the dry dormant months to control growth then meticulously clean up all the clippings immediately after trimming. 9 Sep 2012 Jan65 Thank you for the extra advice Bamboo. How To Prune Red Tip Photinia Hunker Red Tip Photinia Red Shrubs Plant Care Photinia x fraseri Red Robin is a choice photinia with eye-catching juvenile growth the colour of sealing wax similar to a pieris. When to prune photinia red robin . Photinia davidiana Palette which produces new growth that is a more pinky colour is. Therefore we can assure you that the right time to prune the Photinia Red Robin is in late winter early spring. Once is after spring blooming and then again after fall growth so that the shrub can be balanced or its size reduced. The deciduous variety photinia villosa should be pruned in winter when dormant. If you feel you must then when to prune red tip photinia becomes crucial. The next full moon is 3rd July so Ill be busy then. I agree with Salinoit would ...