Tree of heaven (Ailanthus altissima) is one of the most aggressive trees on planet Earth (USDA hardiness zones 4 to 8). This large tree, indigenous to China, was introduced in North America in 1748 and brought to New York City in 1820 as a street tree and a food source for silkworm caterpillars. The tree […]
Archive for the ‘Pests’ Category
Tree Of Heaven Grows Almost Everywhere (Unfortunately)
Posted by Hugh on January 30th, 2015
Posted in acidic soil, Aggressive grower, alkaline soil, Deer resistant, Disease resistant, Drought tolerant, Heat Tolerance, Invasive species, Large Shade trees, Southern Appalachian Region, Summer flowering, Tree of Heaven (Ailanthus), Trees & Shrubs, winter hardiness 
Comments Off on Tree Of Heaven Grows Almost Everywhere (Unfortunately)Mt. Cuba Center Evaluates Heuchera (Coralbells) Cultivars
Posted by Hugh on January 16th, 2015
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 […]
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) CultivarsMany Shapes and Sizes Of Cryptomerias
Posted by Hugh on January 7th, 2015
Japanese cedar, aka cryptomeria, (Cryptomeria japonica) is the national tree of Japan and is also indigenous to China (USDA hardiness zones 5 to 8). Cryptomeria cultivars vary greatly from very dwarf to rounded shrubs to large tree forms. Needle-like foliage may be dark green, medium green, golden or contorted leaves. Cryptomerias tolerate hot humid summers and […]
Posted in acidic soil, Cryptomeria (Japanese cedar), Deer resistant, Drought tolerant, DWARF CONIFERS, Evergreen, Landscape ideas, Privacy Screen, Propagation (Cuttings), Pruning, Southern Appalachian Region, Summer heat tolerant, Trees & Shrubs, watering tips, winter hardiness, Winter Protection Comments Off on Many Shapes and Sizes Of CryptomeriasBeware Of Short-Lived And Overly Aggressive Plants
Posted by Hugh on December 27th, 2014
Gardening does involve some work, sometimes a lot more if you select the wrong plants. A good purchase may even reduce annual maintenance. Some of them are beautifully tempting at the garden center. Non-hardy woody trees and shrubs often sold by box store garden centers. For example, it […]
Posted in Aggressive grower, Disease prone, Environmental issues, Garden Problems, Insect (Pest) Problems, Invasive plant, Invasive species, Landscape ideas, Pests, Purchasing Plants, Southern Appalachian Region Comments Off on Beware Of Short-Lived And Overly Aggressive PlantsNew 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 ImprovedAll About Mulches
Posted by Hugh on December 10th, 2014
Mulches aid in retaining soil moisture and reducing weeding chores. Over the years organically-based mulches gradually improve garden soils. Organic mulches are basically recycled bark, branches, twigs and leaves (including needles). Frequently they are organic by-products from the logging industry. Grass clippings and straw are also mulch sources. Hay is usually full […]
Posted in acidic soil, acidify soil, alkaline soil, compost, Garden Maintenance, Green Recycling, Mulch Quality, mulching, organic gardening, Planting tips, poor quality mulch, Rabbit/deer Protection, Soil drainage, Southern Appalachian Region, Voles, watering tips, Weeds, winter hardiness Comments Off on All About MulchesEmerald™ Arborvitae
Posted by Hugh on December 4th, 2014
Emerald™ or ‘Emerald Green’ arborvitae (Thuja occidentalis ‘Smaragd’) is not new shrub or cultivar. More than 3 generations of gardeners have used this unique form of eastern arborvitae as their “go to” evergreen shrub up and down the eastern coast and through the Midwest (USDA hardiness zones 3-7). Emerald is a semi-dwarf evergreen shrub with a […]
Posted in acidic soil, alkaline soil, Arborvitae (Thuja spp.), Bagworms, Disease resistant, Fertilizing plants, Green Privacy Screen, Landscape ideas, Mites, mulching, Native Plant, plant nutrition, Planting tips, Privacy Screen, Propagation(grafting), Rabbit/deer Protection, Southern Appalachian Region, Summer heat tolerant, Trees & Shrubs, watering evergreens, watering tips, winter hardiness Comments Off on Emerald™ ArborvitaeSpecies Tulips Thrive in Tough Spots
Posted by Hugh on November 27th, 2014
Species tulips (mini-tulips) are tough! In the wild they grow in the winter environs and dry soils of Central Asia, the Middle East, and China (USDA hardiness zones 3-7). In gardens they prosper for many years in full to partial sun and in average soil with good drainage. Over the centuries mini-tulips have been improved. […]
Posted in acidic soil, compost, Disease resistant, Drought tolerant, Flowers, Landscape ideas, mulching, Perennials, plant nutrition, Planting tips, Propagation (dividing), Propagation (Seed), Purchasing Plants, Soil drainage, Southern Appalachian Region, Spring flowering, Tulips, Voles, Voles, watering tips, winter hardiness Comments Off on Species Tulips Thrive in Tough SpotsDragon Eye – Actually Four Different Pines
Posted by Hugh on November 19th, 2014
In U.S. nursery catalogs, at least four gold striped needle pines are designated “Dragon’s Eye Pine”. They are Japanese red pine (Pinus densiflora ‘Oculus Draconis’), Japanese black pine (P. thunbergi ‘Oculus Draconis’), Variegated Korean pine (P. koraiensis ‘Oculus Draconis’) and Variegated Himalayan pine (P. wallichiana ‘Zebrina’) (USDA hardiness […]
Posted in acidic soil, compact shrub, Deer resistant, Evergreens, Pine (Pinus spp.), Planting tips, Propagation(grafting), Purchasing Plants, Soil drainage, Southern Appalachian Region, Trees & Shrubs, Winter Garden Interest, winter hardiness Comments Off on Dragon Eye – Actually Four Different PinesBetter 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
