JC Raulston Arboretum at NC State University
(Wavyleaf Coneflower, Wavyleaf Purple Coneflower)
Wavyleaf purple coneflower is a wispy leaf perennial with lavendar flowers. This central United States native has large flowerheads with downward pointing narrow petals. It resembles a large headed spider with dangling legs. It flowers mainly in mid summer with occasional flowering up until frost and are a butterfly attractant. Seeds are a favorite of goldfinches.
Wavyleaf purple coneflower enjoys a moist to dry soil and is tolerant of slightly alkaline and rocky soil types. Plant in full sun...
In the heat of summer, bright lavender pink daisies cover the pretty and wild Tennessee coneflower. This rare species is only native to the State of Tennessee and is on the United States Federal Endangered Species List. For this reason, the wild-type species is typically only available at specialty plant nurseries and seed suppliers.
This hardy herbaceous perennial wildflower is clump-forming and has linear, fuzzy green leaves. In summer it produces mauve-pink daisies with orange-brown central...
Gerald L. Klingaman
(Rocky Top Tennessee Coneflower, Tennessee Coneflower)
Bright lavender pink daisies cover this compact Tennessee coneflower in the heat of summer. The vigorous and heavy flowering 'Rocky Top' is tough, beautiful and readily found in the garden trade. The parent species, Echinacea tennesseensis, is only native to the State of Tennessee and is on the United States Federal Endangered Species List. For this reason, it is typically only available at specialty plant nurseries and seed suppliers, though 'Rocky Top' is easily obtained.
Gerald L. Klingaman
(Hardy Hedgehog Cactus, Lace Hedgehog Cactus, Reichenbach's Hedgehog Cactus)
Fabulous flowers and a short, tidy habit make this a highly rewarding cactus for containers and rockeries. Rare in the wild, it occurs in dry, rocky scrub and grasslands from southeastern Colorado to northern Mexico. It is noted and named for its interlacing, starry clusters of stem-hugging, flattened spines.
The small, upright, football shaped stems of lace hedgehog cactus are initially single. Over time they produce pups and create clumps. Mature stems produce lots of striking pink, lavender-pink...
(Common Viper's Bugloss)
Native to Europe and western Asia and a common roadside weed over much of the United States, this bristly biennial is grown for its tall summer-long spikes of azure flowers.
First-year seedlings of this hardy biennial form broad rosettes of large, rough, lance-shaped leaves. The following growing season, long steeple-like clusters of small funnel-shaped blooms are borne on stout upright stems that continue to appear from late spring to late summer. Flowers are typically pink aging to blue, but...
James H. Schutte
(Blue Bedder Bugloss, Common Viper's Bugloss)
A compact, blue-flowered selection of a bristly Eurasian biennial, 'Blue Bedder' blooms its first year if sown in early spring.
Rosettes of rough, lance-shaped leaves give rise to conical clusters of small, violet-blue, funnel-shaped blooms on calf-high stems. Seedlings started in early spring bloom from early to late summer; those started in fall bloom from late spring to midsummer the following year. Plants usually self-sow abundantly if not deadheaded.
This bee, butterfly, and hummingbird...
A pleasant upright-shaped shrub with gently arching branches, the Quicksilver silverberry glistens with silvery gray-green foliage and red fruits. A hybrid originating in England as a chance seedling, 'Quicksilver' is a fast-growing deciduous shrub.
The thin branches have thorns. At first, the branches are held upright, but as they lengthen and carry more weight they begin to arch. In early spring, the oval leaves emerge with a whitish silver hue. They mature to silvery gray-green. In late spring...
Russian olive is a large deciduous shrub or small tree that's remarkably hardy and beautiful but known to be invasive. It is native to southern Europe, Russia, central Asia and parts of China where it inhabits coastal regions, lake shores, dry river beds and mountainous areas. It has also become naturalized throughout much of North America. In addition to its graceful habit and silvery leaves it is valued for its edible fruit, quality timber and fast-growing nature.
The narrow, lance-shaped leaves...
(Red King Russion Olive, Russion Olive)
Russian olive is a large, deciduous shrub or small tree. It is native to southern Europe, central Asia and parts of China. The narrow, lance-shaped leaves are green above and silvery, gray-green below. Its brown, scaly, often thorny branches are covered with exfoliating bark that adds winter interest. The cultivar ‘Red King’ has silvery white, strongly fragrant flowers with yellow centers occur in late spring or early summer and are followed by edible, red-rust, olive-like fruit.
Gerald L. Klingaman
(Silverthorn, Thorny Olive)
Thorny olive is a large evergreen shrub to small tree native to China and Japan where it exists along open slopes and thickets near the oceanside or waterways. It has also become naturalized in the southeastern United States where it is considered a problematic invasive shrub. It is fast-growing, tough and grows well in difficult areas but has a coarse, informal look that is visually unappealing.
The oblong to elliptical leaves of thorny olive are dark green on the top and silver-gray on the...