Archive for the ‘Garden Problems’ Category

Are You Growing A Thanksgiving or Christmas Cactus?

If your “Christmas cactus” is blooming on Thanksgiving Day, it is likely not a true Christmas cactus (Schlumbergera x buckleyi) which flowers a month or more later. Thanksgiving cactus (S. truncata) is frequently sold as “Christmas cactus”. Holiday shoppers often decorate with what’s in the store after Thanksgiving and the plants are frequently mislabeled. Christmas […]

American Elm Is Back

American elm (Ulmus americana) once lined America’s city streets until the deadly Dutch elm disease (DED) mostly eliminated it. DED is still present today. Outstanding disease resistant cultivars are truly making a difference, and American elm is on the comeback. American elm is native to the eastern and central regions of the U. S. and […]

Variegated Solomon’s Seal Designated 2013 Perennial Plant of the Year

Variegated Solomon’s seal ( Polygonatum odoratum ‘Variegatum’) is one of the finest perennials for the shade or woodland garden. It is the Asian cousin of U.S. native Solomon seal (P. commutatum). Both species are long- lived garden inhabitants. Variegated Solomon’s Seal handles 2-3 hours of direct morning sunlight in the Southern Appalachian region (USDA hardiness zones 6 and […]

Take Redtip Photinia Off Your Planting List

Some 30-40 years ago redtip photinia (Photinia x fraseri) was commonly planted as a broadleaf evergreen hedge in the Southeast U.S. (USDA hardiness zones 6 -8).  This dense growing 15 foot tall and wide shrub sports firey red new leaves in spring and summer. The red leaf tint fades to green within a few weeks. Many homeowners desire a  fast […]

Emerald Ash Borer And Others Are Spreading – Don’t Transport Firewood

  Moving firewood across county or state lines may also distribute serious insect pests hundreds of miles. For whatever reasons that the tree(s) were cut down in your yard, insects (including termites) may be hiding inside the logs. They may remain alive for a long time. Over the past decade three serious exotic insect pests have been identified […]

Full Moon Japanese Maple Is Very Popular

  The term “full moon Japanese maple” may be confusing. There are actually three species and cultivars of Asian maples that are referred to as “full moon”. The most popular full moon cultivar planted in the Northeast and Southern Appalachian regions (USDA zones 5 thru 7) is Acer japonicum ‘Acontifolium’. A. j. ‘Acontifolium’ is hardy […]

Seven-Son Flower Is Flowering Again

Back in bloom for a second time in two months! This is my way of describing seven-son flower (Heptacodium miconioides), a small 15-20 foot tree or large shrub from China. Seven-son’s creamy white petals open in late August and finish up in early September. By late September, the petals have fallen, and the small green sepals (calyces) have […]

Don’t Forget The Sassafras

A common woodland tree, sassafras (Sassafras albidum), aka mitten tree, is a small tree which grows 20 to 40 feet tall; some may top out at over 60 feet. Tree spread is two-thirds its height.  Sassafras’ mitten shaped leaves, are easy to identify with one, two or no lobes. All three leaf shapes may be […]

Success With Blue/Pink Mophead Hydrangeas

Mophead hydrangeas (Hydrangea macrophylla), the blue/pink flowering species, have been the gardening rage since the early 1990’s. Endless Summer® hydrangea started a wave of new repeat blooming (remontant) cultivars. They bloom on both  new season’s as well as old wood from the previous year. These hardier cultivars extended the flowering time by 8 to 10 more weeks and bloomed in cooler climates formerly unable to […]

Autumn Clematis – Be Careful What You Ask For

              Autumn clematis (Clematis terniflora) is a late summer flowering twining vine with dark green foliage. The sweetly fragrant white flowers bloom for 4-5 weeks. The four petal (sepal) blossom is 1 inch across, borne in clusters, and mature into puffy plume-like seed heads. Its deciduous foliage is leathery in feel and remains mostly […]