crown rot and, like hosta, adapted to partial to full shade environments. Ajuga plants are subject to crown rot if they are overcrowded or if conditions are too humid. Signs of Crown Rot … Every 2-4 years it may be necessary to thin out any crowded clusters of foliage. This is easily done when they are young so you should not have much trouble with them. Pruning your Ajugas is easy. Occasionally patches of ajuga will die. It is best to do this by simply removing the runners from the mother plant. In most cases, you’ll plant ajuga bugleweed from a started plant. Rust - Geranium . To control rapid growth, either mow or cut back to the ground. The good news is that it is easy to grow Ajugas since they don’t require much dedicated care. Tips for Pruning Your Dieffenbachia Plant, Oncidium Orchids Care: 8 Mistakes to Avoid. Crown rot is a disease caused by a soil-borne fungus which can survive in the soil indefinitely. The flowers of bugleweed are normally bluish to purple but they can be found in white as well. The biggest concern is to make sure the plant doesn't get too wet because crown rot is a common problem. Propagating and Pruning Ajuga Plants. Propagate by division any time during the growing season. Foliar Nematode - Hosta. Runners are easily removed from the mother plant when they are young. Crown rot can be a problem, particularly in the humid conditions of the deep South and in heavy soils. Social media. Crown rot is a nasty disease that affects many plants, mainly garden vegetables. You say to thin out larger, crowded groupings of ajuga, but I did not see a description of how to do it. This will reduce the risk of the crown rot. Ajuga reptans 'Metallica Crispa' (also known as 'Cristata') - bronzed foliage is small and crinkled, resembling miniature dark spinach, but is not as vigorous as other cultivars, often listed under the species Ajuga pyramidalis Bugleweed is a dense, fast-growing groundcover. They can be propagated simply by digging out the established clumps in the fall and dividing them. I’m a gardening enthusiast with over 25 years of experience. It will tolerate poor soils, but should be placed in an area where it can be controlled. Your email address will not be published. It is also recommended to thin out the larger, crowded groupings every two to three years. Gray Mold - Poinsettia. Performance - Ajuga is excellent as a ground cover in shade where grass will not grow. Phytopathology 95:S111. This fungal disease is often favored by wet conditions and heavy soils. The blight that causes ajuga crown rot can affect many garden plants and can be difficult to control. Otherwise, it is fairly impervious to pests and diseases. Your email address will not be published. How to care for Ajuga Ajuga are very low maintenance. You will know that this is happening if you notice signs of rot in the lower leaves. This fungal disease is most common in warm wet or humid weather. Ajuga is happiest in well-drained, moist soil but handles drought and dry soils well. Fruiting bodies, called sclerotia, also form in the mycelium. How do I prune my Ajuga Bronze Beauty Bugleweed? This will reduce any chances of root rot. Ideas and Inspiration Common Name(s): Ajuga; Blue Bugle; Bugleherb; Bugleweed; Bugle Weed; Carpet Bugle; Phonetic Spelling ah-JOO-gah REP-tans Description. Photo credit: Wendy Lefkowich via photopin cc. Crown Rot - Ajuga. If you want to know more about Crown rot and on Ajuga plants visit this page. Problems with Ajuga Plants. The plant will also develop spots on the crowns. Removal of these offsets will become more difficult as they age, because they will become entangled in the main plant. Heterosporium Leaf Spot - Iris Rust - Daylily. Divide plants if they become overcrowded. even if they are to be discarded. Crown rot is a disease caused by the fungus Fusarium pseudograminearum, and can attack all winter cereals and many grassy weeds. This will help to keep the plant contained. Wait for a day long after the danger of frost has passed to plant. It should also be thinned every few years to prevent crown rot. Will grow in full shade but best foliage color occurs in part sun. ground cover. Ajuga-Crown Rot. Removing runners will prevent your Ajuga plants from spreading too much. The crown should never be covered with soil or the plant will rot and die. Share your gardening knowledge with The Gardener's Forum - with 50,000 posts and thousands of participating members. Alternatively, you may do this early in the spring. A Pacific Northwest Extension Publication Oregon State University Washington State University University of Idaho. What else. It affects herbaceous plants and some woody plants but is most commonly found on ajuga, anemone, campanula, chrysanthemum, delphinium, hosta, hydrangea, iris, narcissus, phlox, rudbeckia, scabiosa, sedum, and tulip. Problems with Ajuga. Ajugas begin blooming in early spring and continue up until mid July Zones 3-9 Ajuga genevensis is a relativel… Mine is looking crowded at 2 years. Note the discoloration at the base of the stems due to a Sclerotium sp. Sites that are particularly wet or poorly drained will have this problem more than well-drained areas. It is a fabulous plant capable of smothering and controlling weeds and to grow at garden edges. Avoid planting in wet, heavy soils, provide good air circulation and divide when clumps become overcrowded. They are hardy in USDA zones 3-9. Spent flower spikes may be cut back by hand or mowed over using a high bladed mower to clean up the Bugleherb groundcover. Ajuga plants tend to be healthy but crown rot can be a problem. You can do it by simply mowing or cutting the foliage back to the ground. crown rot. Fusarium Wilt - Chrysanthemum. The fungus causing this crown rot enters the plant through the roots and crown. The crown should never be covered with soil or the plant will rot and die. Southern Blight (fungus – Sclerotium rolfsii): Southern Blight, also called Crown Rot, is a soil-borne disease of ajuga that will be more serious in poorly drained soils. Ajuga Reptans is also known as bugleweed or carpetweed and is not that invasive that you cannot control it. ANSWER: Ajuga (Ajuga reptans) is prone to a fungal root and crown rot caused by the Southern blight fungus (Sclerotium rolfsii). 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