Disease resistance is excellent with the exception of some possible problems with slugs and snails. Common Sedum Problems The crowns of ice-plants grown in heavier soils or less well-drained situations are prone to rot in the winter, though adding plenty of grit may help. The flowers are white with a hint of pink and several flower heads are held aloft each spring on an arching stem. But the damage on my Sedum seboldii isn't as extensive as yours and I've never had birds touch my larger sedums like Autumn Fire. Red-coloured foliage on a living roof is not always a cause for worry. They also fare better in poor soil, although the big border ones, such as … Tired of floppy sedums? Stem rot disease is caused by the fungus Sclerotium rolfsii and is one of the most common diseases that affect sedums. Sedums are low-maintenance plants that are susceptible to only a few fungal diseases, most of which are prevented by planting the sedums in well-draining soils. fungi) causes white powdery spores to cover the sedum’s leaves. Common Pests/ Diseases Autumn joy stonecrop is remarkably free of most common pest and disease problems, although the fleshy … Gray mold disease is most prevalent during cool, wet environmental conditions and when old flowers or damaged plant parts remain on the sedum, providing an entry point for the fungus. Green roofs are dynamic, living things and as such they can sometimes do unexpected things. Several different leaf spot diseases can infect sedums, including those caused by the fungal species Cercospora, Colletotrichum and Septoria. Although some species of sedum plants go a lovely deep red colour during the year, most are green when healthy. Sedum telephium "Autumn Joy" and Sedum spectabile "Autumn Joy") earns a special spot with its dazzling fall display. The genus Sedum encompasses a diverse group of succulent plants, ranging from diminutive mats to 2-foot shrubby mounds. Noteworthy CharacteristicsFoliage colors ranging from smoky blue to rich burgundy throughout the season.Seed heads provide autumn interest. Sedum ‘Tricolor’ is variegated with green, white, and pink hues in its leaves. A little grooming and the right location can improve their appearance and decrease your workload. H4 - Hardy through most of the UK (-10 to -5) H5 - Hardy in most places throughout the UK even in severe winters (-15 to -10) H6 - Hardy in all of UK and northern Europe (-20 to -15) H7 - Hardy in the severest European continental climates ( -20) Never mow! Root rots are caused by Fusarium fungi species and produce similar symptoms that are more centralized in the sedum’s roots. Please send cheques/ postal orders to Telegraph Garden, Dept TL706, 452 Chester Road, Manchester M16 9HL. Sedum Album – tiny white flowers on arching stems – lovely! It could be too damp, too shady or low in plant nutrients. Sedum Autumn Joy plants are often one of the few nectar producing flowers in late summer, feeding bees and other insects. Sedum is known for its dense, colorful, and textured foliage. This fungus rots and collapses the basal stems and turns them black or brownish. Instant results with no digging required. Check drainage outlets very carefully and if that doesn’t fix it, then contact the installers for advice. Some of the technologies we use are necessary for critical functions like security and site integrity, account authentication, security and privacy preferences, internal site usage and maintenance data, and to make the site work correctly for browsing and transactions. Plan the perfect garden with our interactive tool →, The Connecticut Agricultural Experiment Station: Sedum Plant Health Problems, National Gardening Association: Plant Care Guides – Sedum, University of Illinois Extension: Plant Palette -- Sedum. If you have puddles that sit on your green roof for more than a day or so, you have a problem with drainage. Treating stem rot can be difficult and in severe cases may involve replacing all of the soil. Gardening readers can buy six Sedum 'Purple Emperor' for £9.95, or 12 for £14.90. If moss is appearing on a green roof that is not shaded, then the most likely problem is that the sedum plants have been weakened by hunger. Sedum is a large genus of flowering plants in the family Crassulaceae, members of which are commonly known as stonecrops.The genus has been described as containing up to 600 species, subsequently reduced to 400–500. Root rots are caused by Fusarium fungi species and produce similar symptoms that are more centralized in the sedum’s roots. Sedum sieboldii. Stem rot causes the sedum’s lower leaves to turn yellow and white, cotton-like growths of mycelium to appear around or near the crown on the soil. All Rights Reserved. Eventually, the whole plant will wilt and die. (not uncommon on sloping roofs). SedumSod. Red foliage on a sedum roof is entirely normal in winter time and during very hot dry weather. Basal rot is caused by the fungus Rhizoctonia solani. In wet environments, sedum crowns, stems and leaves are susceptible to rot, rust and mold diseases. When they’re brown, crispy and dormant; remove them from the roof so that they can’t regenerate. Crowns Other causes … Likewise if you have large, roughly circular areas where sedum plants won’t grow, excess water probably isn’t leaving the roof quick enough. Since sedums prefer sandy, relatively poor soil, soil that is too rich or that has been over-fertilized may encourage excessive development of the foliage, resulting in lank, top-heavy plants with few flowers. Family Crassulaceae . Great for … Sedum Album. If they’re turgid and look full of water, they’re OK and just waiting for better weather. Control rust diseases by applying an appropriate fungicide to your sedums, such as mancozeb or sulfur. One Possible problem with Sedums A small downside with some taller Sedums is that can be lax in habit with plants not standing upright and they have a tendency to spread outwards with a bald centre. Because "Autumn Joy" Leaf spots appear as lesions or as decomposing or necrotic patches on the sedum’s leaves and occur most often during wet conditions. Sedums are low-maintenance plants that are susceptible to only a few fungal diseases, most of which are prevented by planting the sedums in well-draining soils. Red-coloured foliage on a living roof is not always a cause for worry. The green leaves are rounded 2-3 inches long and wide and in the autumn the plant is topped with mounds of pink flowers that age to a coppery pink and eventually to a rust color. Powdery mildew (Erysiphe spp. I was standing in the kitchen and watched as a bird perched on the hanging basket and feasted on the sedum for quite awhile. By the end of the season you may find sedums falling over from the weight. Sedum spectabile ‘Autumn Joy’ A hybrid between Sedum telephium and Sedum spectabile ; it is an upright shrubby sedum reaching 1-2 feet tall and 2 feet wide. Even so, this is not one of their favourite plants. Genus Sedum may be annuals or herbaceous or evergreen perennials with succulent stems and leaves and clusters of small, star-shaped flowers in summer or autumn . Once you have one sedum, it's easy to make more by taking stem and leaf cuttings or dividing the plant. As with grass on the roof, check that drainage outlets are working properly before beginning any remedial work. Rust diseases are caused by several fungal species belonging to the Puccinia genus. Red foliage. Long lived and drought tolerant, award-winner Sedum 'Purple Emperor' is a lovely sight in the landscape with its masses of rosy-pink flowers, densely packed in large umbrella-shaped flower heads, and showing off atop bright reddish-purple stems clad with dark purple, fleshy leaves. Sedums, also called stonecrops, are perennial flowering plants with succulent foliage. Several different leaf spot diseases can infect sedums, including those caused by the fungal species Cercospora, Colletotrichum and Septoria. Beth, I'm not too far from you and have witnessed birds eating my sedum. If the leaves look wrinkled and baggy like a deflated balloon then they are in desperate need of water. These impressive plants are like succulents, as they retain moisture in their leaves and stems. Here at Roofing Superstore we are proud to offer sedum roofs from both SkyGarden and Wallbarn at our famously competitive prices. 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