Archive for the ‘Disease resistant’ Category

Invite Sonata Cosmos Into Flower Beds

Over the past few years a flower bed containing cosmos (Cosmos bipinnatus) has become a rare sight across the Southern Appalachian region (USDA zones 6 and 7).  Not so, at the recently visited BuGa National Gardening Show 2011 in Koblenz, Germany. Called by some “Mexican asters”, cosmos produces big 3- inch wide red, white, pink […]

Wild Epaulette Tree Can Be Tamed

Epaulette tree (Pterostyrax hispida) is a small flowering tree which quickly grows to a mature height of 20—25 feet. Winter hardiness here in the Southern Appalachian region (USDA zones 6 and 7) is no problem.  A newly planted tree grows an average of 15-18 inches per year and blooms early. Epaulette prospers in a moist well-drained […]

Wolfeyes Chinese Dogwood

Chinese dogwood (Cornus kousa), a favored spring-flowering tree, reaches 20-25 feet in height and blooms two weeks subsequent to our native flowering dogwood (C. florida). The ‘Wolf Eyes’ cultivar forms a compact tree or large shrub, standing 8–10 feet tall and nearly twice as wide. lowly reaches 10 to 20 ft. tall and wide; largest […]

Three Mid-sized Ornamental Grasses for Small Gardens

For their sheer architecture alone, ornamental grasses provide 4- seasons of landscape excitement. Within a small garden space three mid-sized (4 – 6 feet tall) ornamental grasses with awesome vertical stature excel. All are highly rated for long garden life and low annual maintenance. ‘Karl Foerster’ Feather Reed Grass (Calamagrostis x acutiflora ) forms silvery […]

When To Prune Spring Flowering Shrubs

Seven reasons why you prune: eliminate dead, diseased, insect riddled branches control plant height and spread shaping such as topiary, espaliered or pollardized trees increase or decrease the numbers of flowers and fruits rejuvenate an old shrub or tree remove low branches over walkways remove water sprouts and root suckers Flowering shrubs bloom from late February thru […]

‘Jeana’ Phlox– no powdery mildew

Photo credit: North Creek Nurseries, Landenberg, PA, USA Our native summer phlox (Phlox paniculata) continues to be challenged here in the Southern Appalachian region (USDA zones 6 and 7) by powdery mildew disease (p-m-d). Over the past decade gardeners have tried new, reportedly disease resistant cultivars. Many have disappointed. To date, the cultivars ‘David’ (white, 3-4 […]

Winter Jasmine Rising

Is the worst of winter behind us? Winter jasmine (Jasminum nudiflorum) is often confused with forsythia shrubs which bloom 3-4 weeks later in the spring. This hardy winter blooming vine from China frequently blooms in late February and March when daytime temperatures climb into the mid-50s for a week or more. Evening chilling temps down into the […]

‘Sunsphere’ Japanese Cornel

  Japanese cornel (Cornus officinalis) is a tall shrub or small tree dogwood which matures to 20-25 feet in height and 15 feet in width. ‘Sunsphere’ Japanese cornel was discovered by Mike Stansberry, owner of  Beaver Creek Nursery in Knoxville, TN. Japanese cornel is the official start of spring in my garden, even though the calendar reads late […]

Edgeworthia Deserves A Try

Edgeworthia flowering in March garden First, I must thank South Carolina nurseryman, Mr. Ted Stephens, who gifted me  a Chinese paperbush (Edgeworthia chrysantha) nearly 6 years ago. Most plant authorities rate its winter hardiness to USDA zones 7 and 8. It struggled through its first winter and spring  in my zone 6-b garden, but has never disappointed. […]

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 […]