I have written in before re my frustration with these inkberries, which seem to have had problems since I've planted them 2 years ago. The species form of inkberry is favored by native plant enthusiasts, but most landscape planting features one of the cultivars. Selected for its compact habit and glistening, bright green new foliage, this dwarf female holly makes an excellent hedge or border plant. It spreads through spores in moist weather, which you can see with your naked eye as pinprick-sized pink dots in the leaf spots. It can tolerate all soil types and various moisture levels. It is not unusual for newly planted shrubs, especially those of the genus Ilex (hollies), to exhibit some yellowing leaves and leaf drop. Noteworthy Characteristics. Low Maintenance / Mass Planting -Native. Soil should be well drained for best results. Compact, rounded evergreen shrub with shiny olive green foliage. Anthracnose is a problematic fungal disease that attacks inkberry when conditions are overly wet. oops, here it is. The flowers are not showy, but the black fruits can be seen well into winter. Here is our soil testing page: https://extension.umd.edu/hgic/soils/soil-testingHolly-tone would be an appropriate fertilizer to use in the fall after the deciduous trees lose their leaves.cm. Those with spiny leaves tend to be left alone. Holly is often listed as deer resistant, but some are more resistant than others. Inkberry holly is a slow-growing broadleaf evergreen shrub with a rounded-to-upright growth habit. a. Evergreen. Sarah Morse has been a writer since 2009, covering environmental topics, gardening and technology. Previously, Ilex crenata (the Japanese holly) was shown to be susceptible. Inkberry Holly has broad evergreen foliage. Once established, it is drought tolerant. More. Special Features: Blue-black berries. Plant a border of Ilex Gem Box® for a stunning lower-growing evergreen native. Female plants need a male pollinator in order to produce the berry-like drupes that are characteristic of the species and cultivars. In late spring to early summer, it produces abundant small greenish-white flowers that are followed by a profusion of dark blue-black berries in fall. It grows well in warmer areas and wet soil, where boxwood often fails, and it has far fewer pests or diseases. It typically matures to 5-10’ tall, and can spread by root suckers to form colonies. Inkberry holly is a colony-forming, east coast native shrub for low, wet sites. Holly bushes can contract both black root root and Phytophthora root rot from water-born fungus in the soil. Standing water can contribute to the proliferation of fungus growth, which attack the tissues of the roots. Pythium usually occurs in container-planted holly bushes, while Phytophthora is more commonly seen attacking Winterberry holly shrubs in the landscape. While leaf spot diseases can arise, they are not likely to kill the plant, however, like us, they are more likely to get sick/diseased when under stress.See here: https://extension.umd.edu/hgic/fungal-leaf-spots-shrubs Additionally, all broad-leaved evergreens look pretty rough this spring after the winter. e. Deer Resistant. If your inkberry shrubs are already leggy, the best way to solve the problem is to do a renewal pruning. Insect pests include holly leaf miner, bud moth, nematodes, spider mites, white fly, or scale. It has shallow roots, so a 2-3" layer of mulch is a good idea. Highly adaptable, its modest size makes it ideal for small gardens. The dark green leaves are oval and glossy, and serrated at the tip. No serious pests. Hollies have separate male and female plants, requires a male plant to pollinate the female plant so it can produce fruits. Soil should be well drained for best results. Water: Average water needs. The cankers appear as sunken or cracked patches of wood, and girdle the stems so nutrients cannot reach the leaves. Inkberry Poisoning Average Cost. This will eliminate the problem of lost foliage on the bottom and your shrubs will grow back to be full and thick again. Inkberry hollies not doing well. The dense twiggy habit displays an abundance of black berries through winter, accenting the evergreen foliage. It can be clipped into formal balls and hedges and it makes an easy-to-grow substitute for boxwood. Hardiness Zone: 5-9; Height: 3-5 Feet; Spread: 3-5 Feet; Category: Shrubs. But most of these plants are foreigners; aliens brought in to do the manual labor of defining and outlining the garden. Watch Reply. Nordic Holly is the male pollinator for Female Inkberry Hollies. Newly planted Ilex glabra shrubs would be very susceptible to this because their root systems are less extenisve; this holly in particular prefers ample moisture -- it is native to swamps. In spring, it produces inconspicuous small greenish-white flowers. Gardenality is a gardening-centric site made by gardeners for gardeners with tools that enhance any gardening for the expert to the weekend gardener. Very small berries will appear only if another Ilex glabra is in the area. Resembling boxwood, it is a good substitute as it is resistant to disease, pests, and winter burn. It is easy to grow and offers good winter color. A slow-growing, evergreen shrub native to eastern North America, it produces greenish white, inconspicuous flowers in … About 2 weeks ago, I planted two inkberries and they don't seem to be doing well (many yellowing leaves falling off). The Nigra Inkberry Holly, Ilex glabra 'Nigra', is recognized for its winter foliage and fruit. Prune to shape in early spring just before new growth begins. Native geographic location and habitat. If pollinated, long lived black berries appear in the flowers. Many people are surprised to learn that this plant is a holly tree, because its leaves do not have the spines we expect to find on holly, and its berries are black, not red. USDA Hardiness Zone: 4-9. Bark color and texture Shamrock Inkberry Holly Care. Root rots can also affect the inkberry holly, especially Phytophthora and Thielaviopsis black root rot. Anthracnose appears as light tan to darker... Root Rots. Red tips bedazzle the glossy foliage in spring. Heller Holly is an evergreen shrub that grows up to 5' and is a dwarf form of Ilex crenata. Average Cost. Native to the southeastern and eastern coastal areas of the United States. During the … Black Root Rot: Black root rot is caused by the fungus Thielaviopsis basicola. Mark unread; Skip to new; Mark unread Print Skip to new. Ilex glabra, commonly called inkberry or gallberry, is a slow-growing, upright-rounded, stoloniferous, broadleaf evergreen shrub in the holly family. Inkberry shrubs work well massed or grouped for … Diseases of Holly Bushes. Evergreen plants are the backbone of many American gardens. p. Partial Sun. It is dense, rigid, and compact with a spreading mound and has non-showy, greenish-white flowers in the spring and small black drupe in the fall on female plants. Or must I wait until the fall? It can tolerate all soil types and various moisture levels. i. Thank you. If you love the look of boxwood hedges but need something easier to maintain, or prefer shrubs with native roots, Gem Box inkberry holly is a perfect choice. ‘Gem Box’ This dwarf evergreen holly has a rounded habit that makes it well suited to container growing. 3/ if I do end up replacing them (which I hope I don't have to), I am considering laurel - is that also prone to disease or would that be a good choice? 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