Archive for the ‘Soil drainage’ Category

Eastern Prickly Pear Cactus

Prickly pears are a subgroup of Opuntia, identified by their wide, flat, branching pads. They are also called nopal cactus or paddle cactus. Most prickly pear plants are found in warm, dry climates like the Southwestern U.S., although there are some cold-hardy species such as the Eastern prickly pear (O. humifusa). (USDA hardiness zones 4-9). Prickly […]

‘Blackhawks’ Grass – 2026 Perennial Pant Of The Year

Big bluestem grass (Andropogon gerardii) is a tall, native, perennial, warm season grass that is a dominant species in a large part of the Midwestern U.S. (zones 3-9). Its attractive foliage that changes color seasonally, its good architectural height, and its interesting flower/seed heads have caught the eye of plant breeders. ‘Blackhawks’ (PP27,949) was introduced […]

Elephant Ears Seasonal Care

Elephant ears (Colocasia) and close botanical cousin (Alocasia) is also called ornamental taro. Plants take off and grow rapidly after spring planting, once all threats of spring freeze injury have passed. In moderate zones 6-7-like climates, elephant ears are special garden tropicals are stunningly beautiful over 7 months before declining for its long winter dormancy. […]

Arborvitae Fern

Arborvitae Fern (Selaginella braunii) is not a true fern, but it produces spores. This ancient plant is called a club moss and spikemoss.  A diverse group of over 700 species, spikemoss is native to China. Its thick lacy fern-like foliage resembles Arborvitae or Cedar. Spikemoss (S. braunii) is a hardy landscape selection that forms a low-growing matting […]

‘Jindai’ Japanese Aster

Tatarian aster (Crinitaria tataricus) / (Aster tataricus) is an herbaceous perennial wildflower indigenous to eastern Europe, Siberia, and Mongolia (USDA hardiness zones 3-9). Its stiff sturdy stems support showy abundant flower clusters comprised of 1 inch (2.5 cm) across, with deep lavender to blue rays and yellow centers. The flat-topped clusters add late season color […]

American Elm Continues To Be Planted

American elm (Ulmus americana) is a medium to large deciduous tree, typically growing to 60-80 feet tall with a vase-shaped, broad-rounded crown. It is native to eastern and central North America. Once widely planted as a street and lawn tree, its populations have been decimated by Dutch elm disease (DED) over the past century. Numerous […]

Summer Planting Combinations At Biltmore

On a recent visit (8/27/25) to the fabulous Biltmore Estates* Walled Garden near the Greenhouse Conservatory were some wonderful colorful plant combinations: *Biltmore Estates in Asheville, North Carolina

Scarlet Rose Mallow

Swamp hibiscus (Hibiscus coccineus), aka scarlet rose mallow, is a hardy perennial plant that grows in swamps, marches and roadside ditches in the Southeastern U.S. (USDA hardiness zones 5-9). It can grow 6 to 8 feet tall and 2 to 3 feet wide.  The 5- to 6-inch-long palmate leaves are 3 – 7 lobes and have jagged […]

Growing Rose Mallow (Hardy Hibiscus)

Summerific® Hibiscus are all Perennial Hibiscus, primarily tracing their parentage back to Hibiscus moscheutos. This species is native to North America, specifically the central and eastern regions of the U.S. Perennial Hibiscus are hardy from zones 4-9 and dieback to the ground each year. They produce exceptionally large flowers in an increasingly wide color range. All […]

Hardy Cyclamen

Hardy cyclamens are tuberous perennial that bloom according to species. They are native to Europe, around the Mediterranean region and parts of Asia and Africa. Two popular hardy species in U.S. gardens are spring-blooming Cyclamen coum and fall-flowering ivy-leaf Cyclamen hederifolium. Leaves remain evergreen through much of the winter season. Non-hardy florist cyclamens (C. persicum) […]