Archive for the ‘winter hardiness’ Category

October Starts Out With Fall Sunflowers

I thank the person who gave me a native swamp sunflower (Helianthus angustifolia). This long-lived perennial appears to have its own internal clock for blooming around the first day of October. Its long narrow rough-textured leaves average 6 inches in length. The 2-3 inch wide flowers appear first on top of the tall 6 to 7  foot plants, and […]

Franklinia Will Survive If…

Franklinia (Franklinia altamaha) is admittedly a very finicky large shrub or small tree. Pure white, five-petal, 2 ½ – 3 inch camellia-like flowers bloom sporadically from August thru mid-October. Flowers are slightly fragrant. In the fall glossy green leaves gradually transition to blends of red, orange and burgundy hues. Franklinia grows best on an eastern exposure […]

‘Chocolate’ White Snakeroot Is A Better Choice

  White Snakeroot (Eupatorium rugosum) is native to moist woodland areas in most eastern and midwestern states (U.S.). It grows in average, moist, well-drained soil in full sun to light shade. It is a long-lived and an aggressive perennial. ‘Chocolate’ (E. rugosum ‘Chocolate’) earns its namesake for its chocolaty or burgundy tinted foliage. ‘Chocolate’ white […]

‘Slender Silhouette’ Sweetgum…Very Few Gumballs!

Sweetgum (Liquidambar styraciflua) is a medium to large landscape tree, which matures to 65-70 feet in height and 35 feet in spread. To many people it’s called the cursed “gumball” or “ankle twister” tree, not be confused with the fruit balls of the American sycamore or London plane tree (Platanus spp.). Gumball detractors should look […]

Old-Timey ‘Royal Standard’ Hosta Still Rules

Kingwood Center is a wonderful public garden in Mansfield, Ohio with several top notch beds of hostas. One glorious bed of ‘Royal Standard’ hosta blooms their heads off from mid-August into September. With over 35,000 registered hostas available, why look back at this vintage variety. Royal Standard was patented and introduced in 1965 by Wayside Gardens […]

‘Morning Calm’ Trumpet Vine

Our native trumpet vine, aka trumpet creeper (Campis radicans), may instill fear in gardeners. A wild vine may climb a utility pole, 30- 40 feet in one year. The late horticulturist Dr. J. C. Raulston at  NC State University in Raleigh recommended its tamer Chinese cousin (C. grandiflora) and the cultivar ‘Morning Calm’. Trumpetvine climbs and […]

A Canna Lily Revival

                    Depending on where you garden, Canna lily (Canna spp.) is a tropical-looking, herbaceous annual or perennial. Its colorful foliage and long blooming time leaves a huge visual impact. Canna is not reliably winter hardy in the Southern Appalachian region (USDA hardiness zones 6 and 7). […]

Torch Lily Has Long Bloom Life

Torch lily (Kniphofia spp.), aka “red hot poker”, is an easy to grow long-lived perennial from South Africa. Its colorful floral spike (and a little imagination) resembles a fiery torch or sizzling poker, visited often by hummingbirds, bees and butterflies. New cultivars are mostly hybrids and vary in plant height and flower color. Starting in […]

Summer Blooming Oyama Magnolia

A friend on vacation sent me the attached photo from Wooster, Ohio.  When I told him that it was Oyama magnolia (Magnolia sieboldii), he asked why gardeners are not growing it. Good question! Oyama magnolia is a 10-15 feet tall (and equal spread) deciduous tree or large shrub from eastern Asia. It prefers to grow […]

Stewartia- A Tree for All Seasons

    Japanese stewartia (Stewartia pseudocamellia) is a truly beautiful 20-30 foot small tree or multi-trunked shrub. Stewartia may be finicky to grow, but a great plant nonetheless. Although rarely seen in U.S. gardens, Japanese stewartia is the most commonly grown of the six stewartia species. All are winter hardy in the Southern Appalachian region (USDA zones 6 […]