Japanese barberry (Berberis thunbergii) is a very popular landscape shrub. Japanese barberry is indigenous to Eastern Europe and Asia and is commonly planted in USDA hardiness zones 4-8. There is justified concern over the invasive nature of Japanese barberry. A number of states have declared most barberry species (Berberis spp.) to be invasive and have […]
Archive for the ‘Pests’ Category
Efforts To Solve Japanese Barberry Invasive Problem
Posted by Hugh on March 11th, 2012
Posted in acidic soil, Barberry (Berberis), Disease resistant, Drought tolerant, Heat Tolerance, Invasive plant, Southern Appalachian Region, Spring flowering, Trees & Shrubs 
Comments Off on Efforts To Solve Japanese Barberry Invasive ProblemVolcano Mulching Harmful
Posted by Hugh on January 1st, 2012
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 […]
Posted in Disease prone, Disease resistant, Garden Maintenance, Insect (Pest) Problems, Millipedes & centipedes, Mulch Quality, mulching, mulching trees, Southern Appalachian Region, Uncategorized, watering tips, winter injury, Winter Protection Comments Off on Volcano Mulching HarmfulTrifoliate Orange –The Barbed Wire of the Plant World
Posted by Hugh on December 12th, 2011
Trifoliate orange (Poncirus trifoliata) is a hardy citrus native to China. T-orange is hardy to -15° F. This strong growing large shrub or small tree can reach 15 to 20 feet in height. Its foliage is deciduous and compound, compared to citrus trees with single simple evergreen leaves. T-orange prefers full day or partial (minimum of 6 hours) […]
‘Duet’ – A New Variegated Beautyberry That Is Stable
Posted by Hugh on October 13th, 2011
‘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. […]
Plant Autumn Asters Instead Of Mums
Posted by Hugh on October 2nd, 2011
Aromatic asters (Aster oblongifolius) is one of our finest late blooming native asters for the autumn garden in the Southern Appalachian region (USDA zones 6 and 7). Through the spring and summer months, the dense gray-green shrubby foliage mounds grow 15-18 inches high and 24-30 inches wide. Hundreds of yellow-centered, daisy type flowers cover the […]
Posted in Aster, Autumn flowering, Butterflies, deadheading, Deer resistant, Native Plant, Perennials, Southern Appalachian Region, Uncategorized, Virus diseases Comments Off on Plant Autumn Asters Instead Of Mums‘Autumn Bride’ Started A Heuchera Evolution
Posted by Hugh on September 1st, 2011
Autumn Bride heuchera (Heuchera villosa ‘Autumn Bride’) is blooming now. This native ground cover, aka “hairy alumroot”, displays wide lime-green foliage which is not as colorful as many new H. villosa hybrids introduced in recent years. However, the white flowers on Autumn Bride are showier and more numerous. Heucheras prefer a moist, well-drained, compost-rich soil. Plants are heat and humidity […]
Hibiscus Sawfly Devastates Plant Foliage
Posted by Hugh on August 3rd, 2011
The hibiscus (mallow) sawfly is a devastating pest of hibiscus (Hibiscus moscheutos) and hollyhock (Alcea rosea). The adult sawflies are small, barely a quarter inch long. They are mostly black, except for a yellowish brown spot on their thorax, and their smoky wings. The pale green larvae mature to 1/2 inch in length. The larvae […]
Posted in Hibiscus (mallow) sawfly, Hibiscus moscheutos, Hollyhock (Alcea), Perennials, Southern Appalachian Region Comments Off on Hibiscus Sawfly Devastates Plant FoliageTo Grow Crocosmia Or Not?
Posted by Hugh on July 19th, 2011
This South African native, also called ‘montbretia”, thrives in full sun in well-drained average garden soil. A richly composted soil tends to boost foliage size and bloom count, but often weakens bloom stems, requiring some staking. Crocosmia may struggle in a wet soggy wintry soil. Established plants are exceptionally summer heat and drought tolerant. Brightly colored […]
Posted in Crocosmia (Montbretia), Mites, Perennials, plant nutrition, Southern Appalachian Region, Summer flowering, Summer heat tolerant, Winter Protection Comments Off on To Grow Crocosmia Or Not?Panicled Raintree Promises Showy Lantern Pods
Posted by Hugh on July 15th, 2011
Chinese flametree (Koelreuteria bipinnata) is also called bougainvillea raintree. This rare tree, available primarily from internet nursery commerce, deserves to be planted more. It has performed well in the Southern Appalachian region (USDA zones 6-b and 7) and is questionably hardy further north. Flametree is less popular in Southeastern landscapes than goldenrain tree (K.paniculata). Low branching […]
Posted in Chinese flametree, Invasive plant, Regional, Southern Appalachian Region, Summer flowering, Trees & Shrubs Comments Off on Panicled Raintree Promises Showy Lantern PodsGalinsoga -The Gardener’s Weed
Posted by Hugh on July 13th, 2011
Thirty plus years ago a gardening friend passed along this tidbit: “galinsoga (Galinsoga parviflora) is the gardener’s weed”. Galinsoga grows only in cultivated soils such as in your vegetable and/or flower garden from part shade to full sun. It prefers moist soil but grows almost anywhere, even between cracks in a sidewalk. Its thin leaves may wilt […]
Posted in Broadleaf weeds, Flowers, Fruits & Vegetables, Herbicide management, mulching, Pests, Southern Appalachian Region, Uncategorized, Weeds Comments Off on Galinsoga -The Gardener’s Weed
