Archive for the ‘Trees & Shrubs’ Category

Vanilla Strawberry™ Hydrangea

  Vanilla Strawberry™ hydrangea (Hydrangea paniculata) is a new peegee hydrangea selection introduced from France and it is really catching on with U.S. gardeners (USDA hardiness zones 4-9). This exceptionally cold hardy hydrangea blooms from late June thru early September. Blooms are enormous and stand upright. Following a heavy summer shower, saturated floral trusses temporarily bow down under their sheer weight, but gradually recover. Flower color […]

Swamp Azalea Deserves More Garden Space

              Swamp Azalea (Rhododendron viscosum, formerly R. serrulatum) is very different among deciduous azaleas. Most rhododendrons (azaleas) do not care for soppy, poorly drained soils. This U.S. native is an exception, indigenous to swamps, bogs, stream edges and wet lowlands from southern Maine to northeastern Ohio south to Florida and […]

Winter Damage On Crape Myrtles

                Extremely cold winters of 2013-14 and 2014-15 have damaged many cultivars of crape myrtles (Lagerstroemia x indica). Don’t assume that new crape myrtles are hardy; many are rated hardy only to zone 7. Several of the U.S. National Arboretum cultivars are hardy in zone 6. Gardeners living in the […]

Modern Day Clematis Bloom Freely

              The old-fashioned clematis(es) in grandma’s garden bloomed one time in spring or summer and bore huge showy flowers (USDA hardiness zones 3-7). Vines took up lots of space in the garden. Old cultivars grew 8-9 feet tall; many bore one single large flower at the end of each growing […]

Flame Azalea Favorite Among Native Azaleas

Flame azalea (R. calendulaceum) is a spectacular sight when it flowers in early May through June (depending on location). The mountainsides across the Appalachian region seem to be afire with their yellow, orange or red flowers (USDA hardiness zones 5 thru 8). Its native habitat is in open, dry sites in woods, on the hillsides, and […]

Red Abyssinian Banana For Tropical Looking Landscapes

                    Red Abyssinian banana (Ensete maurelii ‘Red Abyssinian’) is a tropical banana from high in the mountains of Ethiopia in eastern Africa. Its enormous reddish to purplish foliage and red – burgundy trunk adds a tropical presence to any garden. Compared to hardier banana genus Musa, Ensete does not produce root suckers […]

American Yellowwood Deserves To Be Planted More

    American yellowwood (Cladrastis kentukea) is a beautiful native tree which  is rarely planted in U.S. landscapes (USDA hardiness zones 4-8). Yellowwood is a tree for all seasons. It is both a lovely shade and flowering specimen. Long white wisteria-like flowers appear in mid- to late-May. It eventually matures into a lovely 35 to […]

Chinese Fringetree Gains In Popularity And Availability

 Chinese fringetree (Chionanthus retusus) When in bloom in mid-spring (May), the fringetrees (Chionanthus spp.) definitely will catch your eye. Chinese fringetree (C. retusus), is one of the finest small to medium sized flowering trees, not to be confused with the U.S. native fringetree (C. virginicus) (USDA hardiness zones 5-9). Both produce spectacular white lacy flowers […]

Siebold Viburnum Makes Wonderful Small Tree

                The genus Viburnum is no stranger to U.S. gardens. Many species and cultivars of viburnums are popular. Siebold viburnum (V. sieboldii) is a large spring flowering species from eastern Asia  (USDA hardiness zones 5-7), but is under-planted in today’s gardens. This multi-trunk large shrub to 12 to 15 feet high or 25 […]

Good News About Garden Impatiens

  Gardeners no longer have to give up growing garden impatiens (Impatiens walleriana). No, the worldwide disease outbreak of downy mildew  on garden impatiens is not over. But new disease resistant cultivars of impatiens are arriving at garden centers this spring. Two of the newest are: SunPatiens® Spreading Shell Pink and Bounce® Pink Flame (‘Balboufink’). […]