Archive for the ‘Southern Appalachian Region’ Category

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 […]

Hardy Dwarf Deodara Cedars

Over the past ten years, deodara cedar (Cedrus deodara) has carved its niche into Southern Appalachian gardens (USDA zones 6 and 7). Three zone 6 hardy dwarf cultivars, ‘Glacier Blue’, ‘Devinely Blue’, and ‘Feelin Blue’, fit  today’s smaller garden space better than most tree forms of deodara cedar that typically reach 70-80 feet in height. […]

Winter King Hawthorn – A Winter Fruit Attraction

bright red fruit in winter season ‘Winter King’ is an outstanding cultivar of our native green hawthorn (Crataegus viridis) and is at home here in the Southern Appalachian region (USDA zones 6 and 7). Over the winter season few deciduous trees present a colorful fruiting display much better than Winter King. Winter King hawthorn is a small landscape tree, maturing to 25-30 […]

Ice Storm- Keep Hands Off

An ice storm is both a beautiful and horrific scene in a garden. The potential for major tree/shrub breakage is staggering. If you feel powerless, this is good thing.  During the storm, do nothing / “hands off”. Most actions will likely cause more damage than what nature may have intended. After the storm assess the landscape areas which seem most vulnerable, or that […]

Try Microbiota Instead of Ground Junipers

  Summer Foliage of Microbiota Microbiota (Microbiota decussata) goes by numerous names including Russian arborvitae and Siberian cypress. This tough customer hails from Siberia, and quite cold hardy to -40 F. In the northern U.S. its lacy evergreen foliage turns brown in the dead of winter. Here in the Southern Appalachian region, microbiota prospers in cooler parts of zone 6 […]