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 […]
Posted in acidic soil, alkaline soil, Autumn foliage color, Deer resistant, Gardenia, Ginkgo biloba, Large Shade trees, Propagation (Seed), Propagation(grafting), Pruning, Soil drainage, Southern Appalachian Region, Summer heat tolerant, Trees & Shrubs, Winter bark, winter hardiness 
Comments Off on Ginkgo -Sex Education 101Photo: walnut twig beetle infestation Tennessee Department of Agriculture (TDA) officials urge state residents and visitors to the state to help prevent the spread of Thousand Cankers Disease in black walnut (Juglans nigra)trees and Emerald Ash Borer in ash species (Fraxinus spp.). Take the following steps: Don’t transport firewood, even within Tennessee. Don’t bring […]
A generation of gardeners have extolled the benefits of mulching around trees and flower beds. Sometimes, mulching is not a good practice. Often, a heavy clay soil retains too much moisture over the winter months. Some dryland perennials, such as cheddar pinks (dianthus), euphorbia, and delospermum, prefer dry to moderately wet winter soils. Amending with […]
Posted in Garden Problems, mulching, Pests, poor quality mulch Comments Off on Mulching- Not Always a Good PracticePlumleaf azalea (Rhododendron prunifolium) has been blooming in my garden for the past ten days. This species is a late July – early August bloomer in northeast TN. The bright orange-red flowers of this native azalea light up any garden spot whether in full sun or partial shade. Provide some additional shade in southern climes […]
Posted in Azalea (deciduous), Deer resistant, Disease resistant, Drought tolerant, Heat Tolerance, Hummingbird, mulching, Native Plant, Pruning, Southern Appalachian Region, Summer flowering, Summer heat tolerant, Trees & Shrubs Comments Off on Plumleaf Azalea Is Showy Summer Blooming Shrubphoto: Dr. Alan Windham, UT Plant Pathologist The following is a real query sent to an Extension agent over the phone: “I have thousands of insects on 8 of my 10 maple trees. I fear they will kill my trees, one has already died. The insects huddle together. I am not positive they have wings, […]
Posted in Garden Problems, Maples (Acer), Pests, Trees & Shrubs Comments Off on "My Maple Tree Is Being Invaded"photo -Arrowwood viburnum in late summer A trip to Carolina Native Plants Nursery in Burnsville, NC gave me this idea to list those viburnums which are U.S. natives (USDA Hardiness zones 6 and 7). All are worthy for planting in your landscape in full sun except where noted. All attract birds and other wildlife to […]
Posted in acidic soil, Attracting birds, Insect (Pest) Problems, Native Plant, Ornamental fruit, Pesticide recommendations, Privacy Screen, Rabbit/deer Protection, Southern Appalachian Region, Spring flowering, Trees & Shrubs, Viburnum beetles, Viburnums Comments Off on U.S. Native Viburnums And Viburnum Beetle Susceptibility‘Green Giant’ arborvitae and Cryptomeria (Japanese cedar) have proven more dependable over the years than Leyland cypress across Tennessee, Virginia, North Carolina, and South Carolina. Leyland cypress is susceptible to three serious foliar diseases. Some people love the faster growth of Leyland cypress. Leyland cypress may be weak-wooded, as reported by some gardeners this current […]
Posted in acidic soil, Arborvitae (Thuja spp.), Bagworms, Disease prone, Evergreen, Evergreens, Ilex (hollies), Landscape ideas, Leyland cypress, Privacy Screen, Southern Appalachian Region, Viburnums, watering tips Comments Off on Privacy Screening – Avoid Using Leyland CypressIf you live in USDA Plant Zone 6-b – 7, planting leyland cypress (x Cupressocyparis leylandii) could eventually turn into a maintenance diseaster in your landscape. Leyland cypress is a green behemoth, too fast and aggressive for most folks to handle. Ask yourself, “do you really need a 60-70 foot evergreen privacy screen around your […]
