When To Prune Photinia Red Robin. Like other evergreens Photinia Red Robin should not be pruned when its dormant. Photinia x fraseri Red Robin is a choice photinia with eye-catching juvenile growth the colour of sealing wax similar to a pieris.
Photinia tolerates cutting back to about 6 inches 15 cm above the ground. Photinia Rejuvenation Rejuvenate red tip photinia when the shrub doesnt color up as it should or when it looks overgrown congested or straggly with dead areas in the center. The new growth when it shoots in spring will be the famous red flame color.
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You need to prune your Photinia red robin sometime between early Spring to early autumn. Its the beauty of the plantand new shoots need time to harden before autumn. This is certainly the time of year to do it. One last point concerning when to prune a red tip photinia or rather when not to.