In general, perennials are not rated very high for their fall leaf color. This is very wrong as some produce stunning autumnal foliage colors. In addition, some ornamental grasses produce colorful floral heads (inflorescences).The first six are perennial dicots and the next six are grasses with awesome inflorescenses. Bloody cranesbill (Geranium sanguineum) – short 9-12 […]
Archive for the ‘Garden Problems’ Category
Swamp Hibiscus
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. Its 5- to 6-inch-long leaves are palmately lobed into 3, 5, or 7 parts. […]
About Penstemons
Some 40 years ago, Dr. Dale Lindgren, plant breeder at the University of Nebraska released ‘Husker Red’ penstemon (Penstemon digitalis). This pioneering variety has purple-green foliage and white flowers. New penstemon varieties continue through the breeding pipeline with larger and colorful blooms, more compact habit, or dark foliage. (Z 3-8). Penstemons (Beardstongue) belong to the […]
Creeping Jenny – Accent /Weed
Creeping Jenny (Lysimachia nummularia ‘Aurea’, aka creeping yellow loosestrife, golden moneywort, and several more colloquial names). It is an herbaceous, semi-evergreen perennial in the primrose (Primulaceae) family native to Europe (USDA hardiness zones 3-8). Introduced in North America this ornamental ground cover grows aggressively. Be careful what you invite into your garden as this fast-growing plant […]
Summer Blooming Trees
Other than crape myrtles, few trees bloom in July and August. Here are four exceptions: Chaste tree, Sourwood, Golden Raintree, and Franklinia. Chaste Tree (Vitex agnus-castus) is a 10-15 feet tall, vase-shaped, deciduous shrub or a small 15-20 feet tree. The species is native from southern Europe and Asia. It is often mistaken as a purple-flowering […]
Vintage Large-Growing Oakleaf Hydrangeas
Oakleaf hydrangea (Hydrangea quercifolia) is an upright, broad-rounded, suckering, multi-stemmed, deciduous shrub that typically grows 4-6 feet (less frequently to 8 feet) tall. It is a wonderful flowering shrub with multi-season interest. It is native to the Southeastern U.S. and tolerates hot, humid weather. Oakleaf hydrangeas aren’t quite as cold-hardy as other hydrangea species (USDA […]
2023 Carex Evaluation From Mt Cuba
The native plant research team at Mt Cuba Center in Hockessin, DE has recently published the results of a 3-year Carex (sedge) study in which they evaluated 70 species and cultivars. The study included a number of under-planted Carex species and varieties. One grouping was grown in full sun and a second planting was tested […]
Mountain Hydrangeas
Mountain hydrangeas (Hydrangea serrata) look very much like big leaf hydrangea (H. macrophylla) except shrubs are smaller, more compact in growth habit with smaller flowers and leaves. They are native to the cool moist woodland valleys in Japan and Korea mountains. (USDA hardiness zones 6-9). These unique hydrangeas fare better in cool climates in zones 5 […]
Colorful Bugleweed As A Groundcover
Bugleweed (Ajuga reptans), aka “carpetweed” and “carpet bugle”, is a fast-growing evergreen perennial ground cover in the Lamiaceae (mint) family. The species name “reptans” means creeping. It is native to Europe, northern Africa, and southwestern Asia. Cultivars are hardy in USDA hardiness zones 3-9 (unless otherwise noted). Most bugleweed cultivars demonstrate aggressive plant vigor that helps to […]