Archive for the ‘Southern Appalachian Region’ Category

Opening Show in February- The Witchhazels

First, not to confuse you, our North American native witchhazel (Hamamelis virginiana) blooms in the fall. Our native vernal witchhazel (H. vernalis) has been flowering for the past few weeks. In February, the showiest witchhazels are opening now – species from China, Korea and Japan. Two of the very best are a Chinese species/cultivar called […]

Crabapple Shopping List

For those of you tired of the monotony of Bradford pears, go shopping for ornamental crabapples (Malus spp.). Most crabapple cultivars mature into long-lived small flowering trees less than 20 feet in height at maturity. Most fit under utility lines. Worldwide, there are over 400 cultivars of crabapples in nursery commerce. Most are susceptibility to […]

The Other Lenten Roses

In addition to the popular Oriental hellebore (H. x orientalis), four other species are hardy in the Southern Appalachian region (USDA hardiness zones 6 and 7).  Christmas rose (H. niger) is the first lenten rose to bloom, often 4-6 weeks earlier if mild December weather permits. The 3 ½- inch flowers are large and showy, […]

Lenten Roses Perk Up the February Garden

Lenten roses or hellebores (Helleborus spp.) are long-lived perennials, often surviving in the same garden spot for many years. Four species of Lenten roses grow in the Southern Appalachian region (USDA hardiness zones 6 and 7).  All thrive in shady garden recesses, exposed to as little as 3 – 4 hours of dappled sunlight. Numerous […]

Disease-free Shrub Rose Trial–The Winners Are…

Blushing Knockout™ Over the past 10 years, the world of roses has witnessed a revolution with the popularity of the Knockout™ series of roses in gardens across the U.S. Over the past 5 years the University of Tennessee has been testing shrub roses in Poplarville, MS and two Tennessee locations. Dr. Mark Windham and his research team have […]

Re-Blooming Your Poinsettia: Winter thru Summer Care

Part III:  By late January your poinsettia plant may look droopy and the leaves pale green. Some flowers (colorful bracts) and leaves may have dropped. To revive the plant and to program it to flower again next winter requires additional care from you starting now. Move the plant to an east or south exposure window, […]

Two Sensational New Oakleaf Hydrangeas

Oakleaf hydrangea (Hydrangea quercifolia) is a popular native shrub in the Southeastern U.S. (USDA hardiness zones 5 to 8). Two new compact forms of oakleaf hydrangea were recently introduced by the U.S. National Arboretum. In early summer, ‘Ruby Slippers’ is covered with 9-inch-long floral clusters that are held upright above the foliage. ‘Ruby Slippers’ grows […]

2012 Perennial Plant of the Year Named

The Perennial Plant Association (PPA) has selected Brunnera macrophylla ‘Jack Frost’ as the 2012 Perennial Plant of the Year. Runnersup for 2012 honors were Panicum virgatum ’Northwind’, Heuchera ‘Caramel’ and Chelone lyonii ‘Hot Lips’. Brunnera ‘Jack Frost’ foliage is deer resistant. It grows to a height and width of 12-15 inches. Its silvery foliage stands out in a […]

Stop the Leyland Madness

Leyland cypress (x Cupressocyparis leylandii) is a tall, fast growing evergreen tree or shrub. Many are planted as privacy screens. Ask yourself, should you really plant a 50 foot barrier between you and your neighbor(s)?  In the Southern Appalachian region (USDA hardiness zones 6 and 7), there are shorter and better evergreen choices. In the 12-16 foot category: Boxwood (Buxus […]

Planting Trees for Future Generations

Oaks, beeches, hickories, ginkgoes, bald cypresses, redwoods, chestnuts and others are trees that future generations inherit from previous generations. In human terms, it takes a lifetime to grow an acorn into a mighty oak. Many tree species live hundreds of years, often asking little and contributing much beauty, summer cooling shade, winter heating comfort as windbreaks, and a […]