{"id":611953639750,"date":"2025-10-16T16:41:55","date_gmt":"2025-10-16T16:41:55","guid":{"rendered":"https:\/\/blogs.ashridgetrees.co.uk\/blogs\/uncategorized\/photinia-leaf-spot\/"},"modified":"2026-04-21T08:42:24","modified_gmt":"2026-04-21T08:42:24","slug":"photinia-leaf-spot","status":"publish","type":"post","link":"https:\/\/blogs.ashridgetrees.co.uk\/blogs\/garden-plants\/photinia-leaf-spot\/","title":{"rendered":"Photinia Leaf Spot &#8211; Don&#8217;t Panic!"},"content":{"rendered":"<p><span style=\"color: #00ccff;\"><a href=\"https:\/\/www.ashridgetrees.co.uk\/products\/red-robin-photinia-plants\">Photinia Red Robin<\/a><\/span> makes a really photogenic hedge plant, with blazing red young leaves that can be persuaded to reappear all summer with regular trimming and simple but lovely white flowers.<\/p><p>However, just as the most handsome face can be marred by acne, the prettiest Photinia bush can be disfigured by an unpleasant looking dose of Leaf Spot. <br>It really is an ugly thing to happen to such great foliage, and if it comes your way, you may be quite alarmed.<\/p><p>Our advice is to be calm. <\/p><p>The first thing to consider is that Photinia Red Robin <strong>loves sun, warmth <\/strong>and <strong>well drained soil<\/strong>. <br>It will <strong>survive <\/strong>perfectly well in quite dark, damp places, but its natural defences will be strained, making it more susceptible to disease. <br><strong>Cold is more of a problem<\/strong>. The further North you are, the more Photinia Red Robin tends to struggle, especially in exposed locations. A harsh winter followed by a muggy, humid Scottish summer is almost a guaranteed recipe for leaf spot.<\/p><p>Wherever you are in the country, it is very common for Photinia to get leaf spot in the first couple of years after planting due to transplant stress.<\/p><p>Obviously, you can choose the right place to plant them, but you can&#8217;t control the weather. <\/p><ul>\n<li>If your plants are in a sunny, well drained spot and get leaf spot due to bad weather one year, you have nothing to worry about. <\/li>\n<li>But if they aren&#8217;t in a suitable location and get severe leaf spot on a regular basis, then you must be brave and replace them with a hardier plant.<\/li>\n<\/ul><h3>What causes Photinia Leaf Spot?<\/h3><p>There are two possible causes of leaf spots. <\/p><ul>\n<li>One is fairly harmless and only occurs after manky weather. <\/li>\n<li>The other, called Entomosporium, needs cold, wet weather to strike hard and is a bit more of a pain. It is very hard to tell them apart.<\/li>\n<\/ul><p>Fortunately, the treatment for both is the same.<\/p><h2>How To Prevent Photinia Leaf Spot?<\/h2><p>Assuming that your plants are happy in your location, the most effective prevention is to trim your Photinia twice a year:<\/p><ul>\n<li>In Autumn, <strong>prune <\/strong>out congested branches to open up the centre a bit, allowing air to flow through.<\/li>\n<li>In Spring, <strong>trim <\/strong>the plants all over by about 20cm to encourage lots of fresh growth and remove leaves that were weakened by Winter weather.<\/li>\n<\/ul><p>Remove and burn or bin affected leaves on sight, don&#8217;t compost them. Keep the bottom of the plant ruthlessly clean of fallen leaves. A single decaying leaf can be a springboard for enough spores to affect an entire hedgerow!<\/p><p>Healthy plants tend to stay healthy. Overfeeding can be almost as bad as underfeeding: each year, apply a single dose of <a href=\"https:\/\/www.ashridgetrees.co.uk\/products\/afterplant-biofertiliser-plant-feed-rootgrow\">tree &amp; shrub feed<\/a> around the base of your plants in early Spring. <\/p><p>If your area has dry soil, apply a bit of mulch around but not touching the stems of your plants in late spring and water your plants if there is a drought.<\/p><h2>Key Takeaway<\/h2><p>If you get a few spots coming back, don&#8217;t worry, it&#8217;s just nature doing its thing. <br>If you have a plague of spots year after year, don&#8217;t waste your time and money on a loosing battle with nasty chemicals and sprays. <br>Be graceful, and rethink your planting scheme.<\/p>\n\n<section class=\"prodshow-shopify-block\" \n         id=\"prodshow-block-1\"\n         >\n\t\n\t<div class=\"prodshow-container\">\n\t\t\n\t\t\t\t\t<!-- Multiple Products\/Collection View -->\n\t\t\t<div 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