Archive for the ‘Disease resistant’ Category

Exceptional Describes ‘Major Wheeler’ Climbing Honeysuckle

Climbing or coral honeysuckle (Lonicera sempervirens) is a native vine. It can be spotted growing on fence rows along roadsides and in woodlands from Connecticut to Nebraska, and south to Texas and Florida. ‘Major Wheeler’ is one of the better climbing honeysuckles noted for its non-stop production of bright red trumpet flowers and green mildew resistant foliage. Red […]

Fountain Grasses Are Summer Sizzlers

Purple Pennisetum Grass in Hot Parking Lot Fountain grass (Pennisetum setaceum ) is a warm season grass native to Northern Africa (USDA zones 8-10). It is a dense clump-forming grass with several topnotch cultivars. Most popular are purple fountain grasses (varieties ‘Purpureum’ and ‘Rubrum’) for their heat resistant dark reddish purple foliage. The pink to […]

The Right Rhododendron for the Right Location

Rhododendrons (Rhododendron catawbiense) were born in the cool of the North Carolina and Tennessee mountains. Hundreds of  lovely hybrids have been bred by dedicated plantsmen. Winter hardiness is rarely an issue, but rhododendrons are challenged by summer heat and disease problems in the Southern Appalachian region (USDA hardiness zones 6 and 7).  Your most important decision is […]

Dawn Redwood Lives On From Its Prehistoric Past

Dawn redwood (Metasequoia glyptostroboides) was thought to be extinct for the past 20 million years. Since 1948 gardeners have witnessed its re-introduction back into the North American landscape from Sichuan-Hubei Provinces in China where the tree was re-discovered.  Dawn redwood prefers a well-drained, compost-rich, acidic soil. This deciduous conifer tolerates standing water for a brief 2-3 day span, not as long as bald cypress […]

Volcano Mulching Harmful

Piling up mulch around trees or shrubs, called “volcano mulching”, is a bad practice and is killing them. Perhaps you’ve seen a neighbor or a professional landscaper doing it, and assumed that it must be alright. It’s not! The deep mulch pile smothers the natural buttress flair of the trunk which breathes and absorbs air for […]

Disease Free Apple Varieties

Over the past 30 years, the goal has been to develop good eating and storing apples which are not susceptible to four major diseases. The first 3 cultivars released were ‘Prima’, ‘Priscilla’, and ‘Sir Prize’, but they lacked great flavor and storage quality. Apples are susceptible to four serious diseases: apple scab, cedar-apple rust, fireblight, and powdery mildew.  Scab, rust and mildew […]

European vs Asian Pears

  Growing pears in the Southeastern U.S. is both challenging and rewarding. Both the European (Pyrus communis) and Asian (P. pyrifera) pears are susceptible to fireblight (Erwinia amylovora), a bacterial disease with no satisfactory cure. Two popular European pear varieties, ‘Bartlett’ and ‘Bosc’, are highly susceptible to fireblight. Varieties found to be fire blight resistant are: ‘Warren’, […]

‘Duet’ – A New Variegated Beautyberry That Is Stable

                  ‘Duet’ is a variegated leaf cultivar of white fruited Japanese beautyberry (Callicarpa dichotoma ‘Albifructus’). It was discov­ered at Tennessee Technological University in 2000 by Dr. Gary Bach­man and Mr. W. Edgar Davis. ‘Duet’ beautyberry was released jointly by the U.S. National Arboretum and Tennessee Technological University. […]

‘Chocolate’ White Snakeroot Is A Better Choice

  White Snakeroot (Eupatorium rugosum) is native to moist woodland areas in most eastern and midwestern states (U.S.). It grows in average, moist, well-drained soil in full sun to light shade. It is a long-lived and an aggressive perennial. ‘Chocolate’ (E. rugosum ‘Chocolate’) earns its namesake for its chocolaty or burgundy tinted foliage. ‘Chocolate’ white […]

‘Gateway’ Joe-Pye Fits Most Gardens

On hot clammy August days, towering 6-8 feet in height, there is Joe-Pye* weed (Eupatorium purpureum) to enjoy. It is visually hard to miss when driving along rural roads in the Southern Appalachian region (USDA zones 6 and 7). Joe-Pye’s flowering sends me a timely message that autumn is only six weeks away. For gardens the cultivar […]