Archive for the ‘winter hardiness’ Category

Japanese Pagoda Tree Becoming Popular In U.S. Cities

U.S. east coast cities are finally planting Japanese Pagodatree (Styphnolobium japonicum). This medium-sized tree grows to 50 feet high, but 75 feet is not uncommon in the southeastern U.S. Pagodatree is native to eastern Asia (USDA hardiness zones 4 –8) where it is more known as Scholar tree. In the early 20th century it was […]

Blazing Star– Electric Summer Flowering Perennial

Blazing star (Liatris spp.) is a popular summer flowering perennial. Also called gayfeather, it belongs in the aster family. This tall, upright, clump-forming perennial is found in moist meadows and at the edge of a marsh. (USDA hardiness zones 3-9). Liatris makes an excellent addition to a rain garden. Its distinctively reddish-purple flower spikes win […]

Lovely Tall Stewartia Deserves Your Attention

Not enough gardeners know about stewartias (Stewartia spp.). Six species are found under cultivation, 2 native to the U.S. and 4 of Asian origin. One of the rarest seen in U.S. gardens is tall stewartia (S. monadelpha) (USDA hardiness zones 5-8). Tall stewartia is a more site forgiving than Japanese stewartia (S. pseudocamellia), the most […]

Gladiolas Are Wonderful Cutflowers

Across most regions of the U.S., planting gladiola corms (they’re not really “bulbs”) begins a week before the probable frost-free date has passed in the spring. Stagger individual plantings every 2-3 weeks through mid- July. Many people opt to grow them as cutflowers for their homes. Purchase large or premium sized corms that measure 1 […]

‘Stella D’Oro’- First And Last Daylily To Bloom

For over a quarter of a century, wherever daylilies (Hemerocallus spp.) grow, you will find the very popular gold-flowered ‘Stella d’Oro’ daylily (USDA hardiness zones 2-9). It’s one of a few daylilies that blooms 3 out of 4 seasons. Its small size makes it an ideal choice as a ground cover. This short clump growing […]

‘Hyperion’ Daylily Still Popular 90 Years Later

‘Hyperion’, a mid-season June-July bloomer, was designated the 2011 Award of Merit winner by the British Horticultural Society. That’s not bad for a daylily (Hemerocallus spp.) variety that was introduced in 1924. It’s still very popular among gardeners and garden designers. You see it everywhere, planted in shopping mall parking lots or along NC highways. […]

Smoketree – Reliable Urban Tree Or Shrub

“Smokin” may be a corny way to describe the billowy inflorescence (floral head) of common smoketree (Cotinus coggygria). It is native from eastern European to central China. U.S. native, American smoketree (Cotinus obovatus), is far less popular as its inflorescence is much smaller and less showy. Dusky 6-8 inch diameter ball-shaped inflorescences appear in late […]

Doghobble for Shady Landscape Areas

Mountain doghobble (Leucothoe fontanesiana) is native to woodland areas in the Southern Appalachian region (USDA zones 6 and 7). Florida coast leucothoe (L. axillaris) is another regional favorite, native from Virginia south to Florida. Over time it grow tall, usually 3-4 feet high as a rambling ground cover. Every 3 to 4 years hand pruning […]

Allium ‘Millennium’ Outstanding Summer Blooming Ground Cover

Allium ‘Millennium’ is a rhizomatous type allium (onion) introduced by plant breeder Mark McDonough over a decade ago (USDA hardiness zones 5-8). In nursery catalogs it is sometimes listed Allium nutans‘Millennium’. Fleshy strap-like 12-inch long glossy green foliage emits a slight oniony smell when crushed. ‘Millennium’ is a rhizomatous (clump growing) long-lived perennial. Individual plants […]

How Hardy Is Chinese Fringe Flower (Loropetalum)

Loropetalum or Chinese fringe flower (Loropetalum chinensis) has clearly caught on with professional landscapers and gardeners (USDA hardiness zones 7 thru 9). It is rated as marginally hardy in northerly zones 6-b, and has succeeded in consecutive mild winters in the past decade. The winter of 2014 had killed some established plants to the ground, […]