Clemson University Cooperative Extension Service offers its programs to people of all ages, regardless of race, color, gender, religion, national origin, disability, political beliefs, sexual orientation, gender identity, marital or family status and is an equal opportunity employer. Leaf problems can develop, but usually as a result of the root problems infecting the plant. Aucuba (spotted laurel) is recommended for its robustness and ability to grow in dry, shaded sites. 020 3176 5800 This slow growing foliage plant assumes a shrub-like habit with glossy pointed leaves and graceful arching stems. Slow-growing, it will only reach 1.8m after 10 years if left unpruned. Aucuba japonica ‘Picturata’ with sunburn within the variegated portions of leaves after exposure to afternoon sunlight. Black decay develops and moves up the stem. the RHS today and get 12 months for the price of 9. The fungus itself is present in most soils. A dense, upright to rounded shrub, it usually remains neat and tidy. Keep the base of the plant free from mulch. ‘Variegata’ – This is a yellow-flecked form and is female. Marmorata Aucuba has very large glossy dark green leaves splashed with bright yellow. Dark red aucuba (Aucuba japonica) fruit produced in October. The fruit is an ellipsoid, one-seeded, ½-inch long, berry-like drupe. The shrub recovers just fine if you water well at planting, and stake if necessary the first year. If this document didn’t answer your questions, please contact HGIC at email@example.com or 1-888-656-9988. ‘Crassifolia’ – This is a male form with large, dark green leaves. Avoid splashing water on leaves to keep spots from forming. Root rot is caused by a soil-borne fungi Phytophthora cinnamomi and P. citricola. Pests and Diseases No diseases are of major concern. japonica is a rounded, evergreen shrub with small, reddish purple flowers in spring, and red berries (on female plants) in fall. It competes successfully with the demanding roots of other shrubs and trees, and transplants easily. All recommendations are for South Carolina conditions and may not apply to other areas. Spotted laurel is a very beautiful shrub, as nice in summer as it is in winter with its cute red berries.. A summary of spotted laurel facts. Potted Japanese Laurel Plants Other fans... Sooty Mold. Foliage – evergreen Flowering – November to April Small purple-red flowers appear in spring, followed by bright red berries. It grows at a slow to moderate rate, but given good doses of water and fertilizer, it grows more rapidly. Black Leaves on Aucuba Shrubs Insect Infestation. Most of these problems have to do with the roots. It grows to about 10 feet tall and wide. It is a female form that produces red fruit, and has dark green foliage. Problems. Q. Aucuba Japonica Variegata (Gold Dust) We want to transplant one of these shrubs to a location in the garden where it can serve as a screen to our neighbor's back door. Posted by Chris Auld on November 21, 2011 at 5:01pm in Groundscare Ive noticed quite a few spotted laurels in my clients gardens seem to be suffering from sort of disease or disorder, the leaves start to wilt then turn dark brown and fall off, the stems then die back. Insects, Diseases, and Other Plant Problems: Fairly problem-free. ‘Picturata’ – This is a female form with showy, dark green leaves with bright golden yellow centers. Aucuba japonica has some common insect problems: Twospotted Spider Mite Gloomy Scale, Melanaspis tenebricosa (Comstock), Hemiptera: Diaspididae Mealybugs Found on Flowers and Foliage Control of Root-Knot Nematodes in the Home Vegetable Garden Aucuba japonica has some common disease problems: Septoria Leaf Spot of Tomato Southern Blight of Tomato and Pepper The Japanese Spotted Laurel deserves to be known for what it is; a brightly-coloured evergreen foliage plant which should have a place in most shrub-planting schemes, including windbreaks and hedge – or even as a specimen in a patio pot. What causes black splotches on my aucuba japonica shrub? Spider mites can be troublesome indoors. However, Phyllosticta leaf spot and Phomopsis stem dieback can occur. Joey Williamson, ©2014 HGIC, Clemson Extension. One of the most attractive home landscape plants is the Aucuba japonica. Prune occasionally to restrain growth or eliminate dead or dying branches caused by disease. A unisexual, evergreen shrub of rounded bushy form, 6 to 10 ft high, consisting of a thicket of erect or arching, little-branched stems. Gridley, CA. A: If it makes you feel any better, some of my aucubas are doing the same thing. This plant is valued for its ability to thrive in the most difficult of garden environments, dry shade. Southern blight. Joey Williamson, ©2014 HGIC, Clemson Extension. The variegated types brighten a dark corner or break the monotony of a large sea of green. Join the RHS today and support our charitable work, Keep track of your plants with reminders & care tips – all to help you grow successfully, For the latest on RHS Shows in 2020 and 2021, read more, RHS members get free access to RHS Gardens, Free entry to RHS members at selected times », Reduced prices on RHS Garden courses and workshops, Our Garden Centres and online shops are packed with unique and thoughtful gifts and decorations to make your Christmas sparkle, General enquiries Aucuba japonica, commonly called spotted laurel, is a rounded, shade-loving, evergreen shrub in the Garryaceae family, a small family that includes just two genera Garrya and Aucuba.It typically grows to 6-10' (infrequently to 15') tall, unless pruned shorter. Aucuba japonica Thunb. 'Crotonifolia' has leaves that look like they were speckled with yellow paint. Common name: Aucuba blackening Plants affected: All cultivars of Aucuba Main causes: Waterlogging during cold, wet winter Timing: Winter Credit: RHS/Tim Sandall. Aucuba isn’t a classic watersaver plant, since it prefers semi-moist soil, but it’s ideal for that shady spot near the Paseo del Rio (or the AC condensate drain). Diseases are rare. Soil nematodes and scales can be a problem, with the resultant sooty mold blackening the leaves. Aucubas suffer from several diseases and pest problems.