Archive for the ‘Soil drainage’ Category

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 […]

Double Take™ Flowering Quinces

Photo credit: Dr. Tom Ranney, NCSU Research Horticulturist Flowering quince (Chaenomeles spp) is an early spring flowering shrub, treasured for its brightly colored blooms (USDA hardiness zones 5-9). Old fashioned quince shrubs produced small amounts of fruits which were gathered and prepared into yummy jelly in the autumn kitchen. These often large 10-12 foot tall shrubs produced small sharp […]

Pulmonarias: Wonderful In The Shade Garden

Although my multi-year addiction for hostas has never waned,  I remain equally passionate about the lungworts (Pulmonaria spp.). Lungwort is also called Bethlehem sage and Jerusalem sage. Their uniquely splotched or variegated foliage wakes up a dark patch in any shade garden. Lungworts are planted as ground covers and for color accents. In early spring (March), lungworts send up […]

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 […]

Ginkgo -Sex Education 101

Surviving an autumn season with a heavily fruited ginkgo (Ginkgo biloba) tree is a foul smelling experience. The odorous yellow fleshy fruits ripen in October and drop onto public streets and home lawns. Several times I have witnessed the Jonesborough Tennessee Fire Department raking up fallen fruit and hosing down a sidewalk too treacherous to walk […]

Culver’s Root (Veronicastrum)

Midwest native Culver’s root (Veronicastrum virginicum) starts the summer flowering season in my perennial garden. It naturally grows in open woods and meadows and thrives in fertile to moist soils. However, this deep rooted plant hasn’t complain about the current dry period in the Southern Appalachian region (USDA zones 6-7). Be aware that culver’s root […]

New Hardier Gardenias

Old fashioned gardenias or cape jasmines (Gardenia jasminoides) are reliably hardy in USDA zones 7-b and 8. Plants require immediate protection when the outdoor temperatures dip below 15 to 20 degrees. The new hardier cultivars are compact growers, 2-4 feet tall and 3-4 feet wide. ‘Frost Proof’, Crown Jewel™, and Heaven Scent™ are three promising […]

‘Sky Pencil Holly vs ‘Dee Runk’ Boxwood

Boxwoods and hollies are mainline evergreen shrubs, utilized for low hedging, privacy barriers. Single shrubs are planted solely for their architectural accent.  Both hollies and boxwoods grow best in moist, well-drained soils and in full sun to partial shade.  Both prefer soils with a pH of slightly acidic to slightly alkaline. Boxwoods tend to be more shade tolerant than […]

Dogwoods for Spring

Five disease resistant varieties of  flowering dogwood (Cornus florida), released by the University of Tennessee in Knoxville, are available at local garden centers this spring. Supply should be better than in past years. Powdery mildew resistant varieties: ‘Appalachian Snow’ (pictured), ‘Appalachian Blush’ and ‘Appalachian Mist’. In addition, ‘Cherokee Brave’, with dark pink flowers,  exhibits good mildew resistance. […]

Hardy Forms of Deodara Cedar

I am surprised by the increasing numbers of deodara cedars (Cedrus deodara) that are prospering in Zones 6-b and 7 gardens. Apparently, deodara cedars are much hardier than once thought. The buzz at a recent American Conifer Regional meeting is these varieties list here are worthy of planting: Tree forms: ‘Karl Fuchs’ ‘Shalimar’ ‘Eisregen’ ‘Eiswinter’ ‘Polar […]