Archive for the ‘alkaline soil’ Category

Emerald™ Arborvitae

Emerald™ or ‘Emerald Green’ arborvitae (Thuja occidentalis ‘Smaragd’) is not new shrub or cultivar. More than 3 generations of gardeners have used this unique form of eastern arborvitae as their “go to” evergreen shrub up and down the eastern coast and through the Midwest (USDA hardiness zones 3-7). Emerald is a semi-dwarf evergreen shrub with a […]

Carolina Buckthorn Attractive Native Shrub/Tree

Many native plant enthusiasts consider the Carolina Buckthorn, aka Indian cherry (Rhamnus caroliniana), one of our most underutilized native shrubs or small trees. It suffers with a bad common name as it has no thorns or spines. This open, slender branched shrub grows 12 to 15 feet high and 10 to 15 feet wide. (USDA hardiness zones 5-9). Bright green leaves remain on […]

The Mighty Bur Oak

Bur oak or mossycup oak (Quercus macrocarpa), aka blue oak and mossy overcup oak, is a majestic native oak native to the midwest and eastern U.S. (USDA hardiness zones 3-8). It a member of the white oak group (rounded leaf lobes, no bristly tips). This large sized deciduous oak grows 60-80 feet tall with a […]

English Oak Demands A Moist Well-drained Soil

Thinking about English oak (Quercus robur) brings to mind Robin Hood and Sherwood Forest. This majestic oak forms a broad spreading crown supported by a short sturdy trunk with a medium-brown, deeply-fissured bark (USDA hardiness zones 4-8). A young tree exhibits a pyramidal form. In a city park or golf course, it typically grows 50-70 […]

Mexican Sycamore Thrives In Warm Wet Locales

Mexican Sycamore (Platanus mexicana) is a fast growing deciduous tree hardy in Northeast Mexico (USDA hardiness zones 7 -10) where it inhabits soils that are semi-arid and subject to periodic flooding. Summer leaves are medium-sized, only 8-inches wide. When leaves fall away in autumn its beautiful chalky white bark is a winter asset. The bark […]

Ice Plant – A Cool Plant For Dry Sunny Spots

From the extreme heat and dry climates of east and Southern Africa come the hardy ice plants (Delosperma spp.). There are two popular species, Purple ice plant (D. cooperi) and Orange-yellow iceplant (D. nubigenium), plus hybrid cultivars galore. Ice plants are dependable zone 6 winter hardy succulents. They’re excellent candidates for roof top and rock […]

‘Miss Kim’ Lilac Tackles Southeast U.S. Heat and Humidity

When northerners move south, they insist on growing lilacs (Syringa spp.). Southern U.S. heat and humidity often take their toll on these lovely fragrant and colorful spring flowering shrubs (USDA hardiness zones 3-8). One very popular and exceptionally reliable lilac is ‘Miss Kim’ lilac (S. pubescens ssp. patula ‘Miss Kim’). A cultivar of Manchurian lilac, […]

For Dry Sites Try Arizona Cypress

Arizona cypress (Cupressus glabra) is silvery blue needled medium-sized evergreen (USDA hardiness zones 6 to 9). This southwest U.S. native demands full sun and excels in droughty, infertile, and well-drained soils. Conversely, Arizona cypress does not tolerate shade, poor air circulation and flooded soil. Arizona cypress is mostly disease and pest free unless too crowded […]

Shagbark Hickory

Most tree lovers don’t plant U.S native shagbark hickory (Carya ovata) (USDA hardiness zones 4-8). Instead, they often inherit one when purchasing property. Shagbark hickory is notoriously difficult to transplant and grows very slowly in its early years. Like oaks (Quercus spp.) and beeches (Fagus spp.), hickories are long-lived, often standing tall in an open […]

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 […]