Over the past quarter century, gardeners have enjoyed the wonderful heuchera revolution (USDA hardiness zones 4-9). A great many hybrid cultivars have been introduced with more arriving every spring. Unfortunately, the flood of new cultivars has given us a huge number of poor selections. As I talk with […]
Archive for the ‘Disease resistant’ Category
Mt. Cuba Center Evaluates Heuchera (Coralbells) Cultivars
Posted by Hugh on January 16th, 2015
Posted in acidic soil, compost, Deer resistant, Disease resistant, Evergreen, Ground cover, Heuchera (coralbells), mulching, Native Plant, Perennials, Propagation (dividing), Southern Appalachian Region, Spring flowering, Summer heat tolerant, watering tips, Winter Garden Interest, winter hardiness 
Comments Off on Mt. Cuba Center Evaluates Heuchera (Coralbells) CultivarsBlue Atlas Cedar Becoming Very Popular In Urban Landscape
Posted by Hugh on January 10th, 2015
Blue Atlas cedar (Cedrus atlantica ) hails from the Atlas Mountains in northern Morocco and Algeria (USDA hardiness zone 6). The cultivar ‘Glauca’ has been the popular choice because of its blue green foliage. Blue Atlas grows to 40-60 feet in height, but individuals over 70 feet are hard to find. Mature forms, those 50 […]
Posted in acidic soil, Atlas cedar (Cedrus), Disease resistant, Disease resistant, Drought tolerant, Evergreens, Heat Tolerance, Large Shade trees, Planting tips, Privacy Screen, Purchasing Plants, Soil drainage, Southern Appalachian Region, Staking, Summer heat tolerant, Trees & Shrubs, watering tips, Winter bark, winter hardiness Comments Off on Blue Atlas Cedar Becoming Very Popular In Urban LandscapeNew Christmas Roses (Hellebores) Greatly Improved
Posted by Hugh on December 18th, 2014
Christmas roses (Helleborus niger) is a winter flowering perennial. It is native to central and southern Europe (USDA hardiness zones 4-8) and is not as winter hardy as lenten rose (Helleborus x orientalis). Christmas rose tends to flower 1 to 4 weeks earlier, around the Christmas holidays in southern climes (zones 7-8). New selections of H. niger are better […]
Posted in acidic soil, alkaline soil, Container garden, Deer resistant, Disease resistant, Disease resistant, Evergreen, Fertilizing plants, Hellebores, Perennials, Planting tips, Poisonous or toxic, Pruning, Purchasing Plants, Slugs, Slugs, Snails, Soil drainage, Spring flowering, Summer heat tolerant, watering tips, Winter flowering, winter hardiness Comments Off on New Christmas Roses (Hellebores) Greatly ImprovedList of Zone 6 Hardy Camellias Grows Longer
Posted by Hugh on November 29th, 2014
If you live and garden in USDA hardiness zone 6, several camellia cultivars are winter hardy. The past decade has seen an increase in the list of hardy cultivars. These same cultivars are also reliable planted in zone 7. Here is a sampling of the best Zone […]
Posted in acidic soil, Autumn flowering, Bee Favorite, Camellia, compact shrub, compost, container shrub, Disease resistant, Disease resistant, Evergreen, Planting tips, Propagation (Cuttings), Purchasing Plants, Southern Appalachian Region, Spring flowering, Summer heat tolerant, Trees & Shrubs, Winter flowering, winter hardiness, Winter Protection Comments Off on List of Zone 6 Hardy Camellias Grows LongerTips On Crape Myrtles In Fall And Winter
Posted by Hugh on November 24th, 2014
Hardy cultivars of crape myrtles are best left alone in the fall. Light pruning to remove a broken branch or the seed capsules is ok, but major pruning should wait until early spring. “Crape murder” is a common practice in the Southeast U.S. and is not recommended any time or place. It involves lopping […]
Posted in Crape myrtle (Lagerstroemia), Disease resistant, Failure to Bloom, Pruning, Southern Appalachian Region, Summer flowering, Summer heat tolerant, Trees & Shrubs, Winter bark, winter hardiness, Winter Protection Comments Off on Tips On Crape Myrtles In Fall And WinterBetter Choices Than Leyland Cypress For Privacy Screen
Posted by Hugh on November 12th, 2014
For homeowners in a rush to establish a tall green privacy screen from the neighbor(s), perhaps a 12-foot tall green fence may be your better option. Among the choices of evergreens to plant, Leyland cypress (x Cupressocyperus leylandii) is fastest growing, but is plagued by any of three serious disease problems. An established leyland cypress planted 12 feet apart completely […]
Posted in Bagworms, Cryptomeria (Japanese cedar), Disease prone, Disease resistant, Drought tolerant, Evergreen, Evergreens, Leyland cypress, Pesticide recommendations, Planting tips, Privacy Screen, Pruning, Southern Appalachian Region, Summer heat tolerant, Trees & Shrubs, watering iris, winter hardiness Comments Off on Better Choices Than Leyland Cypress For Privacy Screen‘Gyokuryu’ Japanese Cedar -Privacy Screen For Small Gardens
Posted by Hugh on November 9th, 2014
Gyokuryu Japanese cedar (Cryptomeria japonica ‘Gyokuryu’) is a dense, broadly pyramidal evergreen shrub (USDA hardiness zones 5-8). It has short stiff needles that tend to be a slightly darker green than other cryptomeria cultivars. Gyokuryu holds its dark green color through most winters in zone 7 and further south. Expect winter bronzing when Gyokuryu is […]
Posted in acidic soil, Cryptomeria (Japanese cedar), Deer resistant, Disease resistant, Disease resistant, Drought tolerant, Evergreen, Evergreens, Fertilizing plants, Heat Tolerance, Privacy Screen, Soil drainage, Southern Appalachian Region, Trees & Shrubs, watering tips, winter hardiness Comments Off on ‘Gyokuryu’ Japanese Cedar -Privacy Screen For Small GardensBee Bee Tree (Tetradium) Rarely Seen In U.S. Landscapes
Posted by Hugh on November 3rd, 2014
Native to Korea and southwestern China, bee bee tree (Tetradium daniellii) is a deciduous tree with a spreading umbrella-shaped habit and rounded canopy (USDA hardiness zones 4-8). It was formerly named Evodia daniellii. Bee bee tree typically grows to 25-30 feet tall and wide. In July-August small […]
Posted in acidic soil, Autumn Fruiting, Bee Bee Tree (Tetradium), Bee Favorite, Butterflies, Disease resistant, Fragrant, Ornamental fruit, Planting tips, Propagation (Seed), Purchasing Plants, Southern Appalachian Region, Summer flowering, Summer heat tolerant, Trees & Shrubs, Winter bark, winter hardiness Comments Off on Bee Bee Tree (Tetradium) Rarely Seen In U.S. LandscapesSwamp Milkweed Is Monarch Butterfly’s Favorite
Posted by Hugh on August 29th, 2014
Swamp milkweed (Asclepias incarnata) is an erect, clump-forming, U.S. native plant indigenous to swamps, bottomlands and wet meadows (USDA hardiness zones 3 to 6). Obviously, it prefers moist soils but grows equally well in average, well-drained garden soils. Full sun is best, but copes with some light shade. As its common name indicates, it makes […]
Posted in acidic soil, Aggressive grower, Aphids, Bee Favorite, Butterflies, Butterfly weed (Asclepias), Disease resistant, Disease resistant, Flowers, Fragrant, Native Plant, Perennials, Summer flowering, Summer heat tolerant, watering tips, Wildflowers, winter hardiness Comments Off on Swamp Milkweed Is Monarch Butterfly’s FavoriteTall Sedum – The New Mailbox Plant
Posted by Hugh on August 7th, 2014
Tall sedums (Sedum x spectabile) are a popular late summer blooming perennial often nicknamed “showy stonecrops” (USDA hardiness zones 3-9). Members of the succulent plant family, tall sedums have thick round leaves and are recognized for their drought resistance. Star shaped flowers are clustered in colors ranging from whites, pinks, and reds, depending on the […]
Posted in Autumn flowering, Bee Favorite, Butterflies, Disease resistant, Drought tolerant, Fertilizing plants, Ground cover, Heat Tolerance, Perennials, Pruning, Southern Appalachian Region, Stonecrop sedums, Summer flowering, Summer heat tolerant, watering tips, winter hardiness Comments Off on Tall Sedum – The New Mailbox Plant
