Archive for the ‘Disease prone’ Category

Avoid Mulch Volcanos

Ever heard of a “mulch volcano? It is a load of mulch that is piled up around the base of a landscape shrub or tree. A common answer I get from homeowners guilty of this practice is that they see professional landscapers and city maintenance crews doing it. Volcano mulch can also cause tree roots […]

Garden Phlox Attract Pollinators

Phlox (Phlox spp.) are popular perennials that are also U.S. natives. A multitude of species and hybrids are available to landscapers and gardeners for almost any type of garden environment, including containers. Here is a list of the intermediate garden species: Border phlox (Phlox paniculata),  Meadow phlox (P. maculata), Carolina phlox (P. carolina), Smooth phlox […]

Golden Chain Tree

Golden Chain Tree (Laburnum anagyroides) is a small deciduous tree or large shrub. This small landscape tree is a member of the Bean Family (Fabaceae) and is native to central Europe (USDA hardiness zones 5 to 7). It is rated as a short-lived tree that grows to 25 or 30 feet in height as a […]

Some Conifers Don’t Like Summer Heat And Clay Soils

Most conifers are best grown in deep, moist, well-drained, acidic loamy soils and in full sun. In the deep South evergreen conifers are challenged by warm soils, poor soil drainage, and humidity. Humidity increases their susceptibility to diseases. Once established they are drought tolerant, but most fail in poorly drained wet soils. Many pine species […]

Plant Disease Warning: Phytophthora ramorum

Known as “sudden oak death”, this serious plant disease (Phytophthora ramorum) (Pr) from the West Coast kills oak and other species of trees. It has caused devastating effects on the oak populations in California, Oregon, and Washington, and is also present in Europe. Symptoms include bleeding cankers on the tree’s trunk and dieback of foliage. […]

Trees That Age Gracefully

Trees transition from youth (seedling), middle age and old age (maturity) before requiring a chain saw and replacing. Some age gracefully, actually appreciating in $$ value. Many ginkgo, hickory, beeches, sugar maples, and Southern magnolias live 100 years plus. Oaks such as such as white (Q. alba) and live oak (Q. virginiana) mature in majesty  over several hundred years.   It’s […]

25 Trees For Autumn Leaf Color

Fall leaf colors of woodland and landscape trees vary from one year to the next. Foliage colors are determined by monthly weather conditions and several environmental factors. Rainfall amounts and daily temperature levels during August and September are key determining factors. Best autumn leaf colors develop as daytime hours are shortening, daytime hours are sunny and […]

Update On Boxwood Blight Disease

A decade ago, boxwoods (Buxus spp.) were the quintessential shrubs, particularly for formal hedges. Over the past half century, many new boxwood varieties have been introduced into nursery commerce, a boxwood variety that will work in most garden situations.  Just five years ago, boxwood production at U.S. nurseries was greater than for azaleas, hollies, hydrangeas, and arborvitaes. […]

Beware Of Fast Growing Trees

Many property owners choose fast growing landscape trees. These large shade trees increase the value of your property. Their summer shade and wintry wind protection may reduce utility bills by 20 – 25% . Trees attract wild birds for nesting, protection, and as a food source. Some brighten up your landscape with dazzling fall color. However, we may pay a […]

Working With Poorly Drained Soils

As a rule, yews (Taxus spp.), Japanese hollies (Ilex crenata), azaleas (Rhododendron spp.), blueberries (Vaccinium spp.), and roses (Rosa spp.) are common examples of landscape plants that fail in poorly drained soils. Holly cultivars like ‘Hoogendorn’  and ‘Soft Touch’  fair better in clay soils that most other Japanese hollies in the Southern Appalachian region (USDA hardiness […]