Cornelian cherry (Cornus mas) is a multi-stemmed, low-branched dogwood tree or shrub. It typically grows 20-25 feet tall and slightly less in overall width (USDA hardiness zones 4-7). Tiny, golden yellow flowers appear in late winter, around March 1st in my east Tennessee garden, and remain in bloom through most of the month despite cold […]
Archive for the ‘Regional’ 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 […]
Colorful Pentas Bloom In Summer’s Heat And Humidity
Pentas, aka Egyptian starflower, (Pentas lanceolata) excel in the summer flower garden. Only a few years ago, pentas were only found decorating window boxes and other containers. Today, they have becoming a popular bedding plant in geographic areas where summer temps get hot. Pentas grow best in full to part sun (6-hours minimum), and preferably, […]
‘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 […]
More Winter Hardy Encore Azaleas Now Available
For spring 2013, 22 of 32 Encore™ Azalea varieties are cold hardy in the Southern Appalachian region (USDA hardiness zones 6 and 7). Thirteen (13) varieties are reliably cold hardy throughout Zone 6-a&b. They are: Autumn Amethyst, Autumn Carnation, Autumn Cheer, Autumn Jewel , Autumn Lilac, Autumn Lily, Autumn Royalty, Autumn Ruby, Autumn Sangria, Autumn […]
Lungworts- Perfect Shade Companion With Hostas
The lungworts (Pulmonaria spp.) are very popular in shade gardens with hostas, astilbes, Solomon seals, and ferns (USDA hardiness zones 4-8). Their green or silver-colored foliage may be dusted with green, silver or white spots. Lungworts are divided into two distinct foliage forms: narrow long-leaf (P. longifolia) and silvery or speckled oval leaves (P. saccharata). […]
Growing Pear Trees Too Challenging For Southeast Gardeners?
For many reasons growing pears in the Southeastern U.S. is very challenging. First, European (Pyrus communis) and Asian (P. pyrifera) pears are susceptible to fireblight (Erwinia amylovora). This bacterial disease is very difficult to manage. Two of the leading European pear varieties, ‘Bartlett’ and ‘Bosc’, are highly susceptible to fireblight. Varieties found to be fire […]