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. Ajuga is one of the most indispensable groundcovers around. Ajuga-Crown Rot. has been found in greenhouse grown plants by the OSU Plant Clinic and reported from Georgia. It will prevent the plant from going back to its original green form and it will help keeping its colors. With wet feet, it can develop crown rot. In case you notice non-variegated foliage on variegated forms of Ajuga plants, make sure to remove it. Explore KarlGercens.com GARDEN LECTURES' photos on Flickr. Bugleweed is a dense, fast-growing groundcover. Propagate by division any time during the growing season. Crown rot is a fungal disease that can attack all winter cereals. has been found in greenhouse grown plants by the OSU Plant Clinic and reported from Georgia. Ajuga plants tend to be healthy but crown rot can be a problem. Then, as fate would have it, a natural mutation on tissue culture in the U.K. presented the world with the Black Scallop cultivar., and history was made. (Detailed plant information can be found at the bottom of the page.) It has many uses and looks great much of the year. Perennial, 4-9 inches tall, Sun, Part Sun, Shade, Zones 4-10. Sitemap. Otherwise, it is fairly impervious to pests and diseases. They're still mad about losing, and they're fixin' to get even. The most striking symptoms are wilting and yellowing of the leaves. They are largely naked, except for a few small leaves that are narrowly ovate. Crown rots will cause the plant to easily fall over or allow the plant to be pulled easily out of the pot. Occasionally patches of ajuga will die. lerezana Blanco-Dios, Ajuga reptans var. Ajuga is in the mint family (Lamiaceae).There are about 40 species; mostly from the northern hemisphere and Ajuga ophrydis is the only species that is indigenous to South Africa. Ajuga reptans. Common Bugle, Ajuga reptans in flower, rainy day; spring. Photo Location: In My Garden on 2007-03-30. In order to prevent this disease, make sure to provide your Ajuga plants with good air circulation. Cause The fungus Phoma sp. Ajuga grows best in partial to full shade but will also grow in full sun if constant moisture is provided. Ajuga Reptans Main Pest or Disease Problems. If crown rot has taken over at the base of a tree, dark areas develop on the bark near the crown and a dark sap runs out of the areas that are affected with the disease. Phytopathology 95:S111 Pscheidt, J.W., and Ocamb, C.M. Use them in commercial designs under lifetime, perpetual & worldwide rights. Bugleweed (Ajuga) is a cold-hardy, easy-to-grow ground cover with blue to purple flower spikes. Ajuga is typically grown in shady locations but will thrive just as well in the sun, albeit more slowly, making it much easier to control. In many cases, the leaves are colored with shades of purple, white, silver, cream, or pink. Spots appear on the crown (where stem and roots meet), lower leaves rot and young shoots wilt. Ajuga is a hit-and-miss success for me.After a couple of seasons it tends to die out in spots, and some years almost completely dissapears. Jan 14, 2013 - Ajuga is one of the most indispensable groundcovers around. Phytophthora Root and Crown Rot in the Landscape. A low growing wildflower with stems of blue flowers. And in addition to the traditional green foliage, this ground cover can also provide the landscape with stunning copper or purple-colored foliage too, making it great for adding year-round interest. It will tolerate any soil, even poor ones, as long as it is well-drained. 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