It is a vigorous, large-leafed evergreen, mainly grown for the bright red colour of the young leaves, which gradually mature to a glossy dark green – or should do! 24 Mar, 2009 Anything that's contained in a pot … Firstly, an annual trim is essential to encourage side branching and to maintain density, just as you would do for a hedge. Don’t trim too late in the summer or autumn as the new leaves will still be too soft when the frosts come and will be frost burnt. Little spots similar to tar spots appear on leaves. Photinia shrubs sometimes contract a disease called Photinia leaf spot or Photinia black spot.Leaves are dotted with black spots that slowly spread until leaves wilt and fall off.. Little spots similar to tar spots appear on leaves. However, with a little bit of work every year, and it doesn’t have to be very much, these shrubs can look completely different; dense, glossy and colourful. For the past two summers, our red leaf photinias have been dropping their leaves and look like they are dying. These spots can easily be mistaken for a fungal leaf spot disease. Red Tip Photinia (Photinia x fraseri) Leaves: Evergreen leaves are oval in shape and 2¾ to 4 inches long. Brown spots or patches in the middle of the leaf usually means it's been waterlogged. In April and May they looked great. Call 01723 862406 If you don't notice the spots and don't treat the plant with fungicides when the fungus is still active, then the leaves turn black and fall off--one branch at a time.There is nothing you can do this year, except rake up all leaves as they fall, and get rid of them (don't compose!) But now most of the leaves have dropped off except the top foot that still looks healthy. This spotting is caused by a fungus, Entomosporium, and can cause damage to Photinia and Indian Hawthorn.Other plants in the rose family that may be infected include loquat, flowering quince, pyracantha and pear. The color lasts two to four weeks before maturing to green. For this reason, due to the greater proportion of older leaves dropped in spring following a cold winter in the North of the country than our Southern cousins would experience, Photinia is not very suitable for ‘pleaching’ (fanning out on a flat panel above a tall clear stem to give a two-dimensional screen) in the North as it is difficult to maintain sufficient density to give the required effect. Do you know what we ca do for this? If necessary, repeat this in mid-summer. Ordinarily when leaves on a very hardy fast growing shrub like a red ribub photinia go brown then it's due to either: drought or waterlogging. The Bothy, The Walled Garden Diseases of a Red Tip Photinia. Plants Affected . Chlorosis is particularly … My Photinia Leaf Has Spots? Everything you need to know about choosing the right photinia for you. However, it tends to be already stressed plants that are worst affected. Please compare this photo with any not-yet-brown leaves.Hope this is helpful. I have seen similar bushes near a freeway off ramp doing the same thing. Secondly, as I’ve said, they are hungry feeders, so an annual feed in April works wonders. Red leaf photinia is dropping leaves. At this time of year (late spring), we sometimes hear "My Photinia fraseri Red Robin shrubs looked fantastic when I bought them; dense with shiny dark green older leaves and bright red younger leaves. That is the perfect environment for a variety of fungi. Leaves are dotted with black spots that slowly spread until leaves wilt and fall off. It's often used as a privacy hedge, as it grows very thick and to a height of 12 feet if left unpruned.