Archive for the ‘Sanitation’ Category

Bergenia Or Pigsqeak For Sun Or Shade

Bergenia (Bergenia spp), aka “pigsqeak”, is a herbaceous perennial with distinctive glossy, rounded leaves. Bergenias are native to the forest and alpine zones of China and Siberia. Eight species are available including heartleaf Bergenia (B. cordifolia), leather bergenia (B. crassifolia), and fringed bergenia (B. ciliata). Hybrid selections are also available. (USDA hardiness zones 4-8). Bergenia’s […]

Raked Leaves Improve Garden Soil

Don’t rake and send fallen leaves to urban landfills. In a recent poll, nearly one-third of weekly disposable materials are composed of yard waste, newspapers, and food waste. Many of your neighbors are sending bags of “nutrient gold” to landfills. Improve your gardening skills and save money. Adding fallen leaves back into the garden is […]

Getting Rid Of Difficult Weeds

Some aggressive perennials like Chameleon plant (Houttuynia cordata), variegated Bishop’s weed (Aegopodium podagraria), along with many woody briars can be extremely difficult to eliminate from a landscape area or garden bed.  If a weedy garden bed contains no desirable plants, you can over spray weeds with glyphosate, a nonselective herbicide.(Roundup™ is common trade name). This […]

Plant Disease Warning: Phytophthora ramorum

Known as “sudden oak death”, this serious plant disease (Phytophthora ramorum) (Pr) from the West Coast kills oak and other species of trees. It has caused devastating effects on the oak populations in California, Oregon, and Washington, and is also present in Europe. Symptoms include bleeding cankers on the tree’s trunk and dieback of foliage. […]

Emerald Ash Borer Update

Emerald Ash borer (EAB) is confirmed to infest in many areas of the U.S. Emerald ash borer (Agrilus planipennis) is an exotic beetle that was discovered in southeastern Michigan near Detroit in 2002. EAB adult beetles nibble on ash foliage but cause little damage. The beetle larvae (immature stage) feed on the inner bark of […]

Peony Care in the Fall

October and November are ideal for fall herbaceous peony bed cleanup and to get ready for winter. Fall is the ideal time to dig up and divide old clumps of peony roots and to plant new plants. Old yellow and brown foliage comes off easy with hand clippers. Don’t pull or yank off the foliage! […]

Black Mondo Grass

Black mondo grass or black lilyturf (Ophiopogon planiscapus) is sold as a number of cultivars – ‘Arabicus’, ‘Black Dragon’, ‘Nigrescens’, or ‘Ebony Knight’. This stoloniferous grass-like perennial belongs to the lily family (Liliaceae) (USDA  hardiness zones 6-9). Its blackish-purple foliage (3/16 inch wide leaf blades) forms lush arching clumps. For the patient gardener, know that […]

Annual Geraniums Make Garden Comeback

Once popular annual geraniums (Pelargonium x) are making a comeback with U.S. gardeners. Geraniums are also planted in window boxes or hanging baskets. Three types of geraniums are sold at garden centers: zonal or bedding geraniums (P. x hortorum), ivy-leaf geraniums (P. peltatum), and Martha Washington geraniums (P. x domesticum). Color choices include red, pink, rose, salmon, […]

Enjoy Two Kinds Of Stachys In Your Summer Garden

Many gardeners are acquainted with the wooly leaf perennial called lambs ears (Stachys byzantina). But the genus Stachys is also home to betony (S. officinalis) / (S. monieri). Alpine betony (Stachys monieri) is native to Europe and Asia (USDA hardiness zones 4-8). ‘Hummelo’ betony is very different in appearance from its gray velvety leaf relative […]

Update On Boxwood Blight Disease

A decade ago, boxwoods (Buxus spp.) were the quintessential shrubs, particularly for formal hedges. Over the past half century, many new boxwood varieties have been introduced into nursery commerce, a boxwood variety that will work in most garden situations.  Just five years ago, boxwood production at U.S. nurseries was greater than for azaleas, hollies, hydrangeas, and arborvitaes. […]