Epimediums, aka barrenwort or fairy wings, are slow-growing groundcovers which are hardy in USDA hardiness zones 4-9. Foliage varies by species, variety, and the season of the year. Most are deciduous, but some evergreen in the Southern Appalachian region (zones 6 and 7). The leaves of some may be chartreuse in spring, green in summer, […]
Archive for the ‘Pests’ Category
A Variegated Ornamental Grass Is ‘River Mist’ Sea Oats
River Mist Northern sea oats (Chasmanthium latifolium ‘River Mist’), formerly Uniola latifolia, is a recent plant introduction with striking green and white variegated foliage on slightly arching stems. River Mist grows shorter than the species, 30-36 inches tall and 24-36 inches wide. Northern sea oats is one of the more shade tolerant of the ornamental […]
‘Green Giant’ Arborvitae: A Terrific Green Privacy Screen
Western arborvitae (Thuja plicata) is a large native evergreen tree from the Western U.S. (USDA hardiness zones 5-7). As many as 30 cultivars are available among dwarf, weeping, and variegated leaf forms. One of the most popular selections is ‘Green Giant,’ a hybrid between T. plicata and T. standishii, a Japanese arborvitae. In its native […]
‘Vanderwolf Pyramid’– Reliable Mid-sized Limber Pine
Limber pine (Pinus flexilis), native to the Rocky Mountain region, has proven to be a reliable landscape evergreen tree in the Midwest and is gaining new fans in mid-South gardens (USDA hardiness zone 7-a). ‘Vanderwolf Pyramid’(VP) is a beautiful dwarf pine being planted by conifer collectors. It is hardy in USDA zone 5, and displays […]
Skip (Schipka) Laurel Creates Dense Evergreen Privacy Screen
Schipka laurel (Prunus laurocerasus ‘Schipkaensis’) is a dense growing evergreen shrub with lustrous evergreen foliage and clusters of small white flowers in the spring. It is rated as one of the cold hardiest of cherry laurels (USDA hardiness zone 6-8). In the garden center it is often labeled ‘skip laurel”. Skip laurel grows 10 to […]
Will The Best Cherry Laurel Please Come Forward?
Not all cherry laurels (Prunus laurocerasus) are created equal. “Skip” laurel (var. Schipkaensis) and Zabel (var. ‘Zabeliana’) are large size shrubs at 9 to 10 feet in height and 6 to 8 feet in width. Both cultivars are rated the cold hardiest of the tall growing types . ‘Otto Luyken’ is the hardiness small leaf […]
Pest Update – More Pesticide Options for Hemlock Adelgid Control
Twenty years ago predictions of the demise of our native Canadian (Tsuga canadensis) and Carolina hemlocks (T. carolina) from home and commercial landscapes turned out to be incorrect. The key reason was the effectiveness of the insecticide Imidacloprid®. This product is licensed by Bayer AG, and is found in a number of lawn and garden […]
Deer Don’t Feed On Plum Yews
Plum yews (Cephalotaxus harringtonia) are evergreen needle conifers which flourish in the heat and humidity of the Southeastern U.S. (USDA hardiness zones 6-9). Likely, the groundcover forms are hardier to zone 5-b if protected by snow cover or surrounding vegetation from dry winter winds. Plum yews are native to China, Korea and Japan. Many people […]
Emerald Ash Borer And Others Are Spreading – Don’t Transport Firewood
Moving firewood across county or state lines may also distribute serious insect pests hundreds of miles. For whatever reasons that the tree(s) were cut down in your yard, insects (including termites) may be hiding inside the logs. They may remain alive for a long time. Over the past decade three serious exotic insect pests have been identified […]