Snowdrops (Galanthus spp.) are one of the first of all spring flowers to bloom. Depending on the region, they appear in February and March, often while patches of snow is still blanketing the ground. Snowdrops belong in the small genus Galanthus, that contains approximately 20 species of bulbous perennial herbaceous plants in the family Amaryllidaceae. They are […]
Archive for the ‘Disease resistant’ Category
Five Redbuds With Dynamite Seasonal Foliage
Here are five notable redbuds (Cercis canadensis) possessing colorful summer foliage. Of note, the first 3 of 5 varieties are the creation of noted plant breeder Dr. Dennis Werner of NC State University in Raleigh. Flame Thrower® has stunning eye-catching foliage color breakthrough in the world of redbuds. It is marketed as Eternal Flame® in Europe. […]
Hardy Zone 6 Camellias
In the Southern U.S., camellias are treasured for their showy flowers in the fall-winter landscape. Their glossy evergreen foliage looks great all year long. Hardy varieties are now available for zone 6 northern gardens (-10 to 0 °F). Essentially, gardeners can raise camellias in Tennessee, Kentucky, Virginia and in most coastal cities along the East […]
Japanese Cornel – Notable Cultivars
Starting in late February, Japanese cornel (C. officinalis) burst into bloom with clusters of yellow flowers (zones 5–8). Native to Japan, China, and Korea, this lovely small tree (or large shrub) is one of a few plants that is an early harbinger of spring. Here are notable cultivars: ‘Sunsphere’ grows 20-25 feet high and is an exceptional heavy bloomer with […]
So Many Great Amsonias
Amsonias, commonly called blue star, are a group of easy-to-grow, long-lived native perennials. These highly dependable plants offer three-seasons of landscape interest: showy, long-lasting blooms in spring (mostly in May); threadlike green foliage in summer; and yellow foliage in fall. Amsonias are native primarily to North America and belong to the dogbane plant family (Apocynaceae). This clump-forming perennial has […]
Empress Tree (Paulownia)
Empress tree (Paulownia tomentosa) is a fast-growing shade tree, in some years adding 4-5 feet of new growth, eventually to reach heights of 40-50 feet and width of 20-30 feet in less than 20 years. In the first 3-4 years, juvenile trees develop enormous size leaves. Once trees start producing flowers (adult stage), leaves are […]
2020 Evaluation of Russian Sages By CBG
Russian sage (Perovskia spp.) is a popular garden and landscape plant valued for its lavender-blue flowers and long bloom period. Leaves are silvery green leaves. Long cultivated as an herbaceous perennial, Russian sage is technically a subshrub, a plant with a woody base that produces herbaceous stems. Perovskia spp. has recently renamed Salvia yangii and is a member […]
Forms of Western Arborvitae
Here is a partial listing of cultivars of Western arborvitae (Thuja plicata), as found in the U.S. nursery industry. Several are good choices for dwarf conifer collectors, in rock gardens, and in large containers. Winter hardiness of some cultivars is variable. Note: some are dwarf forms of ‘Green Giant’ arborvitae (Thuja standishii x plicata) which […]
Coral honeysuckle
Coral honeysuckle (Lonicera sempervirens), aka trumpet honeysuckle, is a vigorous twining flowering vine that is primarily native to the southeastern U.S. (USDA hardiness zones 4 -8). Cultivars are available in shades of red, orange. and yellow. The colorful flowers appear in spring and summer, and colorful berries decorate in late summer and autumn. Invite hummingbirds […]