Robinia pseudoacacia 'Bessoniana' – Robinia pseudoacacia 'Bessoniana' A decorative selection with a straight trunk and a broad, oval crown later becoming broad ovoid. Leaves turn uneventful yellow in fall. These display from July to November. Twisty baby, contortionist, leaves doing the twist—this tree has all the moves. The Garden wouldn't be the Garden without our Members, Donors and Volunteers. Other insect problems include caterpillars, weevils, scale and whiteflies. The tree likes Sun to slight shade at the location and the soil should be sandy to strong loamy . 7 BENEFITS of Robinia pseudoacacia ‘Frisia’. 1. This is a good plant for difficult sites, transplants well, and tends to reseed. It grows quickly and can reach heights between 40 and 100 feet. Black locust is generally considered to be a very easy-to-grow tree. It is in flower in June, and the seeds ripen from November to March. The dark blue-green compound leaves with a contrasting lighter underside give this tree a beautiful appearance in the wind and contribute to its grace. This is a larval host plant for several butterflies. Latin: Robinia pseudoacacia. Depression, weakness, dilated pupils, vomiting, bloody diarrhea, weak pulse, coldness of arms and legs, paleness, and shock. Fun Facts. In spring and early summer, fragrant, pea-like white flowers, borne in long (5 inch) hanging clusters mature. https://www.fs.fed.us/database/feis/plants/tree/robpse/all.html Robinia pseudoacacia, commonly called black locust, is medium sized, suckering, deciduous tree that typically grows to 30-50’ (less frequently to 80’) tall. Robinia or black locust Robinia, Robinia pseudoacacia, does not produce suckers in all circumstances and some big, old specimens have never caused problems. Trees send out long underground root suckers that not only become a maintenance problem but also can disrupt nearby gardening areas. Flower: Perfect, showy and fragrant, white, 1 inch long and pea-like, borne in long (5 inches) hanging clusters, appear in mid to late spring. Branches are usually armed with short paired spines (to 1.25” long). Leaves similar to the species type but bright yellow in spring then greenish-yellow in summer. Compact, pendulous clusters of creamy white, sometimes slightly pink, aromatic flowers appear in June. Purple robe black locust (Robinia pseudoacacia 'Purple Robe'): Flowers are deep rosy-purple; new foliage emerges tinged with purple and matures to a bronze-green color. I was taken aback by its delicate, lime colored leaves in contrast with all of the green plant material around the base of its trunk. Possible disease problems include canker, powdery mildew, leaf spots, wood rots and verticillium wilt.Species trees are sometimes considered to be somewhat weedy. It develops shoots from roots. The yellow foliage lasts only for a short period in the spring in the south. Black locust reaches a typical height of 40–100 feet (12–30 m) with a diameter of 2–4 feet (0.61–1.22 m). Zones: 3-9. A mature Black Locust tree : Description. The leaves are alternate, pinnately compound with 7 to 21 leaflets. Read our Commitment to Diversity | Read our Privacy Statement. Other common names: yellow locust. Avoid pruning in spring when it tends to bleed.Species trees spread by self-seeding and root suckers. The leaves are imparipinnate and the flowers are white. Numerous cultivars have been bred in Europe, including some elegant leaf and flower colour forms, and a number of hybrids exist. This species is also commonly called common locust, yellow locust, white locust, green locust, pea flower locust and false acacia.Genus name honors Jean Robin (1550-1629), of Paris, gardener to Henri IV and Louis XIII of France, who received new plants from Canada.Specific epithet means false acacia. Mature Height: 40-80 ft. Its trunk can grow to 3-4 feet in diameter. When Robinia 'Lace Lady' attracted my attention, at the Monrovia display garden in Oregon, its contorted branches and leaves were curling every which way.. The autumn colour is yellow. Pinnate dark blue-green leaves, with each leaf having up to 23 lance-shaped to ovate leaflets. Heat and drought tolerant. Soil / Climate: It is native to South Eastern United States. It has pinnate dark blue-green leaves, with each leaf having up to 23 lance-shaped to ovate leaflets. They grow upright in forests but develop an open growth form in more open areas. This plant is listed as a noxious weed in one or more Midwestern states outside Missouri and should not be moved or grown under conditions that would involve danger of dissemination. It’s an extremely fast growing tree – 4 to 6 feet per year. Robinia pseudoacacia is a deciduous Tree growing to 25 m (82ft) by 15 m (49ft) at a fast rate. 15 cm) and 1 to 3 pairs of small side leaves. It is a vigorous grower with a vertical trunk and a squat, irregular crown. 2) Origin: native to North America Uses: reclamation plant; shade tree; no proven urban tolerance Availability: somewhat available, may have to go out Flower and Leaves (Warren County, NC)-Spring, Flower close-up (Warren County, NC)-Spring, Fencing, mine timbers, and landscaping ties, found in all 48 states of the contiguous US. The inflorescences contain 6–10 flowers with pink corollas. The leaf of the Black locust is noted for its attractive alternate, compound leaves and pendant racemes of pea-like flowers. These are followed by flat, reddish brown, leathery pods with a winged edge that often stay on the tree throughout the entire winter. In spring its ovate leaves are bluish green on top followed by chartreuse yellow foliage that gets more yellow and brighter right up to autumn. They are pea-like and very fragrant. Numerous cultivars have been bred in Europe, including some elegant leaf and flower colour forms, and a … It is a moderate grower with striking lime green foliage which intensifies into a vibrant, golden colour in autumn. Promptly remove suckers as they appear unless naturalization is desired. Native; Deciduous; Medium size tree growing up to 75-95′ in height and 25-30′ wide canopy Trees send out long underground root suckers that not only become a maintenance problem but also can disrupt nearby gardening areas. Twisty Baby® black locust (Robinia pseudoacacia 'Lace Lady'): Smaller size tree (20 feet high by 20 feet wide) with contorted limbs. However, in recent years, this particular cultivar, 'Frisia', has suffered from a damaging dieback problem, sometimes causing the ultimate loss of the tree. Although originally native to the Allegheny Mountains, it has escaped gardens and naturalized over time to cover much of the United States and southern Canada plus parts of Europe, Asia and South America. Cooperative Extension, which staffs local offices in all 100 counties and with the Eastern Band of Cherokee Indians. Robinia pseudoacacia. Grow in average, dry to medium, well-drained soils in full sun. Robinia pseudoacacia, commonly called black locust, is medium sized, suckering, deciduous tree that typically grows to 30-50’ (less frequently to 80’) tall. Robinia pseudoacacia has alternate compound leaves with blunt entire leaflets. Where is this species invasive in the US. Can sucker from its roots. The buds and catkins are eaten by birds.  It provides an excellent leaf cover for birds in wetland sites.   Bees are attracted to its flowers. The leaves have an orange-yellow colour when they emerge, turn greenish yellow in summer, and deep golden yellow in the autumn. Leaflets are oval, one inch long, with entire margins. Tolerates a wide range of soils including sandy or nearly barren ones. Description Robinia pseudoacacia 'Unifoliola' Closed, broad pyramidal tree 15 - 18 m high. I first came across this specimen on a trip to London in late spring, close to two decades ago. It is noted for its attractive compound leaves and pendant racemes of pea-like flowers. form a strategic partnership called N.C. Clouded Sulphur (Colias philodice) larvae appear from May to October in the north and from March to November in the south. Leaf: Alternate, pinnately compound, with 7 to 19 leaflets, 8 to 14 inches long. Its branches are usually armed with short paired spines (to 1.25” long). It is susceptible to locust borer (often fatal) and locust leaf miner (browns foliage). Native Range: Eastern and central United States, Suggested Use: Flowering Tree, Naturalize, Tolerate: Deer, Drought, Clay Soil, Black Walnut, Air Pollution. However, if the roots are disturbed or damaged, vigorous suckering starts. The crown is significantly more closed in structure than that of the species. Black Locust is easily transplanted and grown. Zarucco Duskywing (Erynnis zarucco) has three broods in the deep south from March-October, appearing as early as January in Florida. Robinia pseudoacacia, commonly known as the black locust, is a prickly tree within the subfamily Faboideae of the pea family called Fabaceae and is considered to be a legume with flattened pea pods several inches long. There are 3 flights in the north and 4 to 5 flights in the south (but it rarely uses this plant as a host in North Carolina). Robinia pseudoacacia T. Sitzia, A. Cierjacks, D. de Rigo, G. Caudullo Robinia pseudoacacia L., commonly known as black locust, is a tree native to North America and is one of the most important and widespread broadleaved alien trees in Europe. Fixes nitrogen. ... Thorns can be found at the base of the leaf stalk. It is a medium-sized, deciduous, fast-growing thorny tree with high suckering capacity. The Black Locust is a memeber of the Pea Family. It is also a legume, fixes its own nitrogen and is moderately salt tolerant. The irregularly shaped leaves hang on a long leaf stem and consist of a strikingly large top leaf (to approx. Black locust (Robinia pseudoacacia) is native to the U.S., but not to the Upper Midwest.It is currently spreading into states like Minnesota that are outside of its historical range. Robinia pseudoacacia 'Frisia' is a popular yellow-leaved tree, widely grown in many gardens and public spaces. Scientific name: Robinia pseudoacacia Pronunciation: roe-BIN-nee-uh soo-doe-uh-KAY-shuh Common name(s): Black Locust, Common Locust Family: Leguminosae USDA hardiness zones: 4 through 8 (Fig. It also will grow in suckering thickets. Possible disease problems include canker, powdery mildew, leaf spots, wood rots and verticillium wilt. Small branches of the Black locust fall easily during storms. It is a very upright tree with a straight trunk and narrow crown that grows scraggly with age. Best performance is in moist, organically rich loams. This attractive deciduous tree provides soft filtered shade with its open habit and pinnate leaf shape. Such was the case with Robinia pseudoacacia ‘Frisia’ and ‘Purple Robe’. black locust Fabaceae Robinia pseudoacacia L. symbol: ROPS. Leaf C:P and N:P ratios were higher for Robinia pseudoacacia than for understory plants.. N:P ratios indicate a tight coupling between soil and plant. Bees are attracted to the flowers. Robinia leafs out late and keeps its leaves long into the autumn. Robinia pseudoacacia afforestation improved soil and plant community characteristics.. Tolerates some light shade, but avoid shady locations. Leaf miner is a universal problem on the species. The Black Locust is botanically called Robinia pseudoacacia. About Purple Robe Trees. Black locust is a deciduous tree that, while native to parts of the United States, has spread to and become invasive in other parts of the country. 'Frisia' leafs … Robinia pseudoacacia is an invasive species! The flowers are followed by smooth, flat, purple-brown seed pods (to 4-5” long). Robinia pseudoacacia can be pruned and kept at shrub size by cutting them to the ground every 2-3 years. The compound leaves consist of 9 to 19 elliptical, leaf segments that are 2 – 4.5 cm in size. NC State University and N.C. A&T State University work in tandem, along with federal, state and local governments, to Insects, Diseases, or Other Plant Problems:  It is susceptible to locust borer (often fatal) and locust leaf miner (browns foliage). Also bothered by carpenterworm, locust leaf miner, and scales. This means that when the black locust has been introduced to a new environment, it tends to compete with native species and take over in … Trees along the highways in the south can be Top of page R. pseudoacacia is a medium-sized tree, generally 12-18 m tall and 30-76 cm in stem diameter, with an open, irregular crown. The 6- to 14-inch-long, dull, yellow leaves, made up of multiple leaflets, are some of the last to appear in spring and often drop early in the autumn, just barely fading to a sickly yellow/green before dropping. It is hardy to zone (UK) 3. The Tree is a deciduous tree, it will be up to 25 m (82 ft) high. At night the leaflets droop and the leaf seems to be folding up. Deciduous tree, to 40 ft (12 m) high and a spread of 25 ft (8 m), oval with upright branches, young shoots have wine-red prickles (thorns). Compound (Pinnately , Bipinnately, Palmately). Leaves resemble sprigs of grapes; green above and paler below. It is considered to be a good selection for difficult areas where other trees will not grow well. Although originally native to the Allegheny Mountains, it has escaped gardens and naturalized over time to cover much of the United States and southern Canada plus parts of Europe, Asia and South America. Botanical name: Robinia pseudoacacia Family: Fabaceae (pea) Click on images of Black Locust to enlarge. Leaf: odd-pinnate, 20 - 30 cm, 9 - 19 leaf segments, 1.5 - 4.5 cm, green, feathered leaf fire in the landscape. Invasive Species: Robinia pseudoacacia, Black Locust. Fragrant wisteria-like white flowers in pendant racemes (to 8” long) bloom in late spring. 1×2. Black locust primarily invades disturbed habitats, degraded woods, thickets and old fields, where it crowds out native vegetation and forms single species stands. Leaves:       Bloom:   Spring    Fruit/Seed/Nut:  Fall. Species trees are sometimes considered to be somewhat weedy. 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