Mountain mints (Pycnanthemum spp.) are clump-forming native perennials. They typically grow 1-3 feet tall depending on species (USDA hardiness zones 4 – 8). About 20 species of mountain mints are found in the southeastern U.S. As their name suggests, they belong to the mint family, very evident by their square stems and aromatic leaves when […]
Archive for the ‘Propagation (Cuttings)’ Category
Growing Coneflowers
No question, coneflowers have changed greatly over the past quarter century. Varieties are now available in many color shades and plants demonstrate improved longevity. Current cultivars grow alot shorter. However, some hybrid forms have been disappointing, barely surviving 1-2 years. When choosing coneflowers, Purple Coneflower (Echinacea purpurea) is my #1 favorite for dependability (USDA hardiness […]
Growing Angel Trumpet (Brugmansia)
Angel trumpet (Brugmansia) is tropical plant native from Venezuela to Peru (USDA hardiness zones 7-b to 10). Plants are surprising hardy outdoors in zone 6-b in protected areas. This beautiful perennial/shrub, grown in tree form, reaches heights of 6-10 feet. It is a member of the Solanaceae family which includes tomato, potato, petunia, nicotiana and other great garden plants. They’re […]
New Weigelas Keep Coming
Native to Japan, Korea, and China, flowering weigelas (Weigela florida) are reliable old-fashioned shrubs bearing pink or rose colored blooms in mid-spring. This deciduous shrub has an arching branch habit. New weigelas are now appearing at local garden centers. Older cultivars, typically 6 to 9 feet in height, are being replaced with compact 2 – 5 feet […]
Yellow Flowering Magnolias
Deciduous magnolias (Magnolia spp.) are popular landscape plants because of their bright cheery spring flowers. Breeding efforts back in the 1970’s created a new class of deciduous yellow-flowering magnolias. In 1978, the Brooklyn Botanical Gardens introduced the first, Magnolia ‘Elizabeth’ (creamy white). Yellow magnolias are hybrid crosses between M. acuminata, M. subcordata, M. denudata, among […]
Rhododendrons You Should Be Growing
“A healthy plant in the right place with proper maintenance” is a rhododendron that has few problems. Rhododendrons and azaleas are acid loving plants meaning plants should be planted in humus-rich slightly acidic soil (pH 5.2 -6.5). If the soil is not well amended, rhododendrons will have trouble surviving long term. Once planted, water during […]
Care Of Rhododendrons
In the U.S., two species of rhododendrons, Catawa (Rhododendron catawbiensis) and Rosebay (R. maximum), are plentiful in the Appalachian Mountain region. Their roots feed in part on the rich humus material in the rocky mountain soils. Over time fallen leaves, twigs, and flower parts decay into additional humus. Humus improves soil aeration and drainage, yet […]
Ten Stars Of The Winter Landscape
Here are 10 reliable plants that shine in my Tennessee garden (Zone 6-b) during the winter season: Witchhazels (Hamamelis spp.) –two species bloom in winter: (a). Vernal witchhazel (H. vernalis) blooms in mid- to late- January (zones 4-8). (b). Chinese witchhazel hybrids (H. x intermedia) dominate the month of February into March. – deciduous, large […]
Zone 6 Hardy Camellias
In the Southern U.S., camellias are treasured for their showy flowers in the fall-winter landscape. Their glossy evergreen foliage looks great all year long. Hardy varieties are now available for zone 6 northern gardens (-10 to 0 °F). This means that gardeners in Tennessee, Kentucky, Virginia and most coastal cities in Eastern U.S. can grow […]