Archive for the ‘watering tips’ Category

Bletilla – Hardy Ground Orchid

Chinese ground orchid (Bletilla striata), aka “Hardy Garden Orchid”, is a terrestrial orchid which produces small, cattleya-like, downward-facing purple flowers. It is indigenous to moist grassy slopes of central China and southern Japan. Ground orchids produce attractive foliage and showy flowers, that bloom from mid-spring and early summer. The flowering racemes stand approximately 12-18 inches high […]

Red Hot Pokers /Exceptional Summer Performers

Red-hot Pokers (Kniphofia spp.) are easy to grow long-lived perennials from South Africa. (USDA hardiness zones 5b-9). They go by a number of common names including torch lilies and tritoma. Colorful floral spikes (with a little imagination) resemble sizzling pokers or fiery torches, visited often by hummingbirds, bees and butterflies. Modern day cultivars are mostly […]

Perennial Salvias Getting Better

Perennial salvias (Salvia × sylvestris) represent a number of hybrid crosses between S. nemorosa and S. pratensis but may include S. × alpestris, S. × asperula, S. × collina, and S. × superba. Most cultivars are branched, upright, clump-forming, perennials with opposite, oblong to lanceolate, medium green leaves and showy spikes of tiny, tubular, two-lipped flowers (each to 1/2” long). Flower color choices range from blue to lavender to purple, depending […]

Indian Pinks

Indian Pinks (Spigelia marilandica) is a strikingly beautiful native wildflower throughout central and southeastern U.S. It is sometimes called “woodland pinkroot”. This perennial grows well in many parts of the U.S. (Zones (5b-9). Plants emerge in mid-spring. Sometime in June, depending on locality, their bright red tubular flowers flare open, crowned by five sharply pointed […]

Mini-Oakleaf Hydrangeas

Oakleaf hydrangea (Hydrangea quercifolia) is a U.S. native and it offers four seasons of landscape beauty. (USDA hardiness zones 5-9). Typically, oakleafs grow 10-12 feet tall deciduous shrubs that are broad-rounded, suckering, and multi-stemmed. In the wild, if left unpruned, shrubs reach over 20 feet in height and spread. I have selected five compact growers […]

MT. Cuba Evaluates BlueStars (Amsonia)

MT. Cuba Center is located near Hockessin Delaware, near Wilmington (USDA hardiness zone 7a.). It has recently published a new trial report on bluestars (Amsonia spp.) for the mid-Atlantic region. BlueStars are a genus of popular, long-lived herbaceous perennials. Most are native to the U.S. and Mexico in addition to one Asian species (A. elliptica) […]

Successful Gaura Growing Tips

Gaura (Oenothera lindheimeri) is a low-maintenance perennial native to the southern U.S. (Zones 5-9) and is a durable plant for gardeners. Its waving wands are dotted with dozens of whitish to pinkish flowers don’t stop blooming until summer temps climb above the 90°F range. Gaura is often called “whirling butterflies” because the flowers appear to […]

Sweetbay Magnolia Cultivars

Sweetbay magnolia (Magnolia virginiana) is a U.S. native tree that is finally catching on with landscape designers. Sweetbay often grows 20-30 feet tall and 15-20 feet wide as a large shrub or multi-stemmed small tree. Discovering a 50-60 feet sweetbay near by a lake or pond is not unusual to find (USDA hardiness zones 5-9). […]

Lacebark Pine – A Year-round Treasure

Native to China, lacebark pine (Pinus bungeana) is an excellent, low-maintenance evergreen treasure. Winter-hardy in USDA hardiness zones 4-8, this specimen pine struggles in the summer heat and humidity of the Southern U.S. Best specmens are found growing in arboretums and botanical gardens north of zone 8. This 3-needle pine offers 4-seasons of ornamental interest. […]

Three Native Azaleas That Should Be Included In Mid- Atlantic and Southern Gardens

About Native Azaleas: Flowers appear from April to September depending on species. Flower clusters (called “trusses”) appear just before the leaves emerge. Each truss may bear 3 – 12 blooms, which open 1.5 – 2 inches wide.  Flower colors vary among native species from white, pink, orange and red shades. In many spring blooming species, the open petals […]