Upright European hornbeams (Carpinus betulus cvs.) are versatile small to medium-sized deciduous trees that fit most landscape settings. Depending on which cultivar you select, the tree stands with a narrow vertical profile. It grows 35-40 feet tall and 15-20 feet wide. It’s cookie cutter by design as a street tree or tall narrow hedge. Hornbeams […]
Archive for the ‘Disease resistant’ Category
Past Winners of the Perennial Plant of The Year Award
Each year PPA members choose a Perennial Plant of the Year™. Since 1990 24 great plants have been selected. Some of the selection criteria include: • Suitable to a wide range of climatic conditions • Low Maintenance • Pest and disease resistant • Availability at garden centers • Multiple seasons of color (beauty) The list […]
2014 Perennial Plant Of the Year: ‘Northwind’ Switchgrass
Northwind switchgrass (Panicum virgatum ‘Northwind’) is a 4 to 5 feet tall native prairie grass (USDA hardiness zones 4–9). There are many fine switchgrass varieties, but its Northwind’s vertical form and steel blue foliage that makes it a standout. Northwind switchgrass has been selected the 2014 Perennial Plant of the Year. By mid-summer its lacy soft pinkish […]
‘Grey Owl’ Juniper Is Tough Carefree Evergreen
Some people rate junipers as over-planted or bygone landscape plants. Juniperus virginiana ‘Grey Owl’ is a cultivar of our native Eastern Red Cedar (USDA hardiness zones 3 to 9). Eastern red cedar is actually a juniper. This flat spreading evergreen develops into a reliable ground cover not plagued with disease and pest problems observed on […]
Japanese Umbrella Pine Is Unique Among Evergreens
Umbrella pine (Sciadopitys verticillata) is an outstanding evergreen large shrub or medium-sized pyramidal tree. Initially, umbrella pine grows slowly, only 6 to 8 inches annually, but growth rate picks up after 4-5 years. A young 3-foot tall plant may reach 20 to 30 feet tall in 25 years and double that at maturity. Its leaves […]
Top Conifers Picks By Southeast Reference Gardens
In 2011 poll conducted at the SE Region meeting in Athens, GA, the top favorite conifer picks from SE Reference Gardens. Georgia Lockerly Arboretum, Milledgeville Cryptomeria japonica ‘Elegans Nana’ Juniperus virginiana var. silicicola ‘Brodie’ Platycladus orientalis ‘Aurea Nana’ Thuja occidentalis ‘Rheingold’ Smith Gilbert Garden, Kennesaw Cedrus deodara ‘Gold Cone’ Chamaecyparis obtusa ‘Verdon’ Platycladus orientalis ‘Morgan’ […]
Ranking Four Popular Evergreens As Privacy Screens
If you are searching for a tall evergreen conifer as a privacy screen, the four most popular in the Southern Appalachian region (USDA hardiness zones 6 and 7) are: # 1 is Leyland cypress (x Cupressocyparis leylandii) which rapidly grows 40-50 feet tall and 20-25 feet wide in less than 25 years…if they live long […]