Archive for the ‘Pruning’ Category

Why My Hydrangeas Are Not Blooming

Thankfully, this is not a very common problem that few gardeners run into. U.S. gardeners grow four (4) species of hydrangeas: smooth hydrangea (Hydrangea arborescens), oakleaf hydrangea (H. quercifolia), bigleaf hydrangea (H. macrophylla), and panicle hydrangea (H. paniculata). There are five reasons why some hydrangeas don’t bloom: 1. Type of hydrangea… Bigleaf hydrangeas, those that […]

Five Shrubs Make Wonderful Small Trees

With some aggressively growing shrubs, it frequently comes down to you (and your pruners) versus the plant. Technique: a sharp pair of hand pruners along with 3-4 times annually to train a large unruly shrub into a behaved small tree.  Here is a list of 5 great shrub candidate that may become a great small tree: […]

Crusader™ Cockspur Hawthorn

n Cockspur thorn (Crataegus crus-galli) is sometimes seen as a dense, low-branched, broad-rounded tree to 25-35 feet with horizontal branching armed with numerous large 1.5 to 3 inch long thorns. Lower branches often sweep near to the ground. It is also often seen as a tall, flat-topped shrub. This native hawthorn grows naturally from Quebec […]

Perennial Favorites For The Summer Garden

If someone was to create the Garden Performance Hall of Fame for summer flowering perennials, I would nominate this list of ten (10). I have had experience growing many of them in my Northeast Tennessee garden (USDA hardiness zone 6-b). In a few instances, I have selected a variety that grows in friends’ or a […]

June Blooming Japanese Tree Lilac

Chinese tree lilac (Syringa reticulata) is an under-planted small multi-trunked tree or large flowering shrub (USDA hardiness zones 3-7). In tree form, it grows 20- 30 feet tall and 15- 20 feet wide with a rounded crown. Mature 70 year old plus specimens at Biltmore Estates in Asheville, NC are 50 feet or taller. Its […]

Summersweet Shrub – Underplanted And Underappreciated

Summersweet clethra (Clethra alnifolia), aka sweet pepperbush, is a deciduous summer blooming shrub that ranges from coastal Maine to Florida (USDA hardiness zones 4-8). This delightful shrub grows 3-6 feet, although some cultivars grow 8 feet or higher. Flower colors (depending on variety) range from white, pink, and rose pink. The sweetly fragrant flower clusters ( 4- 6 inches […]

Try Maple-leaf Viburnum In Woodsy Areas

Maple-leaf Viburnum (Viburnum acerifolium) is a small to medium deciduous shrub that is indigenous to many areas of the Eastern U.S. (USDA hardiness zones 3-8). This underutilized native viburnum is at its finest in a dappled shady woodland landscape. Slow-growing at first, a single plant may reach heights of 4-6 feet and 2-4 feet in […]

Black Mondo Grass

Black mondo grass or black lilyturf (Ophiopogon planiscapus) is sold as a number of cultivars – ‘Arabicus’, ‘Black Dragon’, ‘Nigrescens’, or ‘Ebony Knight’. This stoloniferous grass-like perennial belongs to the lily family (Liliaceae) (USDA  hardiness zones 6-9). Its blackish-purple foliage (3/16 inch wide leaf blades) forms lush arching clumps. For the patient gardener, know that […]

Annual Geraniums Make Garden Comeback

Once popular annual geraniums (Pelargonium x) are making a comeback with U.S. gardeners. Geraniums are also planted in window boxes or hanging baskets. Three types of geraniums are sold at garden centers: zonal or bedding geraniums (P. x hortorum), ivy-leaf geraniums (P. peltatum), and Martha Washington geraniums (P. x domesticum). Color choices include red, pink, rose, salmon, […]

Russian Arborvitae For Cool Areas Of The U.S.

Russian arborvitae and Siberian cypress  (Microbiota decussata) is an underutilize ground cover (USDA hardiness zones 3-7). This tough juniper-like evergreen hails from Siberia and demonstrates exceptional cold hardiness to -40 ° F. In extreme northerly sites, the lacy evergreen foliage may turn complete brown in the dead of winter and re-sprout in spring. In the cool temps of […]