Even in poor, infertile soils the plants seem to do well. Robinia is a genus of between maybe 6 to 30 species (many are unresolved) of trees and shrubs from North America. It is an impressive display, and you will definitely want to cut a few and bring them indoors to enjoy in a cut flower arrangement. Similar to the honey locust, the black locust tree can withstand poor soil, drought, and damp growing environments. Purple robe black locust (Robinia pseudoacacia 'Purple Robe') It is considered as one of the most beautiful locust trees because its leaves change in every growth stage. Like many types of honey locust trees, the bark is gray-brown. Its fast-growing nature and intricate root system mean that the bristly locust shrubby tree is considered invasive in many states. The tree leaves are bipinnately compound meaning that smaller leaf branches grow off the main leaf stem. It has edible seed pods known for their chewy and sweet pulps. Locust trees have pods with pulp inside. You can see these thorns along the trees lower branches and their trunk. I've grown 'Purple Robe' both on the Valley floor and in the mountains near Yosemite. As a guide in growing this famous locust tree, take note of the following: As for its size, expect this tree to grow around 30 to 50 feet high. Your Cart. You can also identify the honey locust flowers with their greenish-yellow shade instead of the pink or white one and are fairly insignificant when you compare them to the other locust trees with showy flowers. It has to be in a soil that drains well. Wait until late spring, when the flowers are done blooming, before making any cuts. 'Purple Robe' Black Locust1 Edward F. Gilman and Dennis G. Watson2 INTRODUCTION This cultivar of Black Locust probably grows to about 40 feet tall with a spread of 20 to 35 feet (Fig. This article explains more about the amazing locust trees and how to deal with their thorns. It is most likely messy if the trees are those that continuously drop twigs, large leaves, and nuts. These attractive blooms attract honey bees who are looking for nectar. Establish it the first year with careful watering. This makes it a perfect choice if you intend to make a restful and relaxing part of your garden with a nice shade. Black Locust (Robinia pseudoacacia) Flowers. The Frisia Black Locust has bright lime green leaves and white flowers. Full sun is ideal for purple locust trees, though they can handle some light shade. These showy flowers grow on reddish-purple branches that have spikes at their base. The upright, rounded growth and short, irregular branches form a tighter canopy than the species and cast medium shade below the tree, allowing a lawn to grow. One thing to note about the rose acacia or bristly locust tree is that it is an aggressive grower, which is why it is classified as an invasive locust shrub in some places, like Michigan, Ohio, and Washington. The Purple Robe Locust, robinia pseudoacacia, is a stunning ornamental that is known for developing, in the spring, swathes of gorgeous pink-purple flowers that resemble wisteria. Soil: The honey locust tree is a hardy tree and can grow well in different types of soil. . How long should this tree live ? This is a very distinctive and unique variety that the sweet scent of its flowers will definitely invite pollinators and humans to your garden. While this tree can provide excellent shade, its branches have sharp thorns, so be careful when handling them. Once the flowers bloom, long pods will follow. An impressive show and worthy of cutting a few flowers and bringing them indoors for enjoyment. It can grow in just about any condition as long as the soil drains quickly after a rain. Several of its varieties come with long, fierce, and sharp thorns that tend to grow in pairs. It's also a hardy choice for tough environments, like urban areas. Both of them are native to North America. Its the perfect summer shade tree. An excellent small yard tree, needing little fertilizer or much of anything. The following are five purple-blooming trees to consider planting once the weather cools off. Plants are offered in both It grows quickly and produces fragrant flowers in the springtime. Purple robe locust tree. potted containers and as dormant bare root without soil. Honey locust trees grow to between 66 and 100 ft. (20 30 m) tall. This small, tough native tree is prized for its fragrant purple panicles of flowers that appear from mid to late spring. It is a strong tree that is adaptable and easy to grow while having the ability to resist various pests, insects, and diseases. The spread of up to 15 ft. means that the locust shrub is suitable for groundcover in sunny gardens. Robinia pseudoacacia'Purple Robe' Figure 1. Many are also impressed with the bright-green leaves of this tree. Purple Robe is considered to be a very easy-to-grow tree. You also have less work in the fall to clear up shed foliage. 2. However, purple locusts will not tolerate "wet feet" and therefore require good drainage. Locust trees grow to between 66 and 98 ft. (20 30 m). Cut a few of these flowers and enjoy them in an indoor vase, as it is an impressive display. The Purple Robe Locust likes full sun or dappled shade and will take most any soil, drought or lawn watering. Note, though, that it also tends to grow excessively, which is why some regions still consider it highly invasive. Dont plant it too deeply, as is key for any new tree. Honey bees love it, as do many native pollen bees. It is commonly called the Sweet Bean, Sweet Locust and Honeyshuck. Each leaf is divided into anywhere from nine to 17 leaflets that are 1 or 2 inches long and arranged in pairs. Black locust trees have thorns while honey locust trees are mostly thornless. Plant Sentry is designed to protect both consumers and the nursery trade from invasive plant pests and diseases. A fast-growing, hard-wooded, easy-care, extremely ornamental native tree? Because the inermis cultivars have no sharp spikes on the bark, there is no danger of injuring yourself. However, some consider the plant to be a cross between R. pseudoacacia and R. hispida. Also, observe if there are forked, straight, or sharp spines, which also indicate locusts. It can handle many soil types and needs little water. An effective way to control it is to identify the root suckers immediately and then get rid of them equally. Compared to other locust tree varieties, the pods of the black locusts are smaller. It is the main reason why you can see this tree being planted in those places that need solid and robust production of honey. This tree has bristly stems, which is the reason behind its name. They are also good for medicinal purposes. You can even expect it to resist saline conditions, high winds, and insufficient water. It is a good choice if you are in search of a thornless honey locust tree variety. Dec 8, 2015. The thorns grow on branches at the base of a cluster of leaves, so it would be easy for an animal to eat the thorns while also taking a bite of leaves. Robinia 'Purple Robe' will perform best in moist, organically rich loam; however, it will do just fine in both acid and alkaline soils and can handle salt spray. You will also notice the black locust blooming prolifically even if some of its varieties dont bloom annually. This cultivar of black locust probably grows to about 40 feet tall with a spread of 20 to 35 feet. 5. Bright green foliage turns a beautiful yellow color in the fall. Purple Orchid Tree (Bauhinia Purpurea) Entire leaf is 6 to 14 inches long. Avoid pruning in spring when it tends to bleed. Incredible, long clusters of purple flowers in May that look just like Wisteria flowers hanging from this local bloomer. Tolerates a wide range of soils including sandy or nearly barren ones. Use Current Location. It is best pruned in the dormant season as this tree will bleed when pruned in spring. Growing from its 40 foot branches are small purple leaves that remind us of a Hawaiian Lei. There are varieties of the tall honey locust with larger branches and trunks capable of bearing branched and stout thorns that can reach up to 20-inch in length. Purple-robe locust trees need full sun, although they will tolerate light shade. Dull medium green to dark bluish-green color. This will depend on the kind of soil it will grow and the specific amount of sun it would most likely receive. Don't wait for your chance to own this gorgeous tree, order now! Your support is vital to the Arboretum, where the power of trees makes a positive impact on peoples lives. It also has fragrant white flowers capable of attracting insects, including bees. Dreams blossom in time. The purple robe locust tree is a medium-sized tree, growing to heights between 30 and 50 feet and widths between 25 and 30 feet at maturity. There is a high chance for its trunk to become really large. Don't plant it too deep, as is key for any new tree. The leaflets are 0.6 to 1 (1.5 2.5 cm) and are arranged alternately on the leaf stem. Almost any soil condition will do, including clay, sand or loam that is acidic to alkaline, with a preference for a pH ranging from about 6.8 to 7.7 and an organically rich loam. Similar to other cultivated honey locust trees, the 'Purple Robe' grows to between 30 and 40 ft. (9 - 12 m) tall and has a spread of up to 30 ft. (9 m) wide. As with all types of locust trees, such as the black locust and honey locust, this is a cold-hardy, drought-resistant type of tree. These beautifully fragrant clusters cover the tree profusely that grows up to eight inches long each! This black locust tree variety is famous for growing really fast. You will also notice the leaf gaps in this variety that provide the plants in any lawn dappled light. Its vigorous vegetative reproduction forms extensive, dense groves of clones that exclude native vegetation. It is noted for its attractive compound leaves and pendant racemes of violet purple pea-like flowers. Trees of the Purple Robe Locust develop long clusters of violet flowers similar to those of Wisteria in the spring. Identifying species of locust trees can be done by features such as their flowers, color of bark, height of the tree, and the thorns. About Daniel Nelson Daniel obtained his BS and is pursuing a Master's degree in the science of Human-Computer Interaction. The small oval or ovoid leaflets on each leaf are about the size of your thumbprint. Sunburst locust leaves are pinnate and have a fine texture. Fall clean up is easy with these small leaves, too! The tree's flowers often stay blooming for longer than other varieties of black locust. Healthy locust trees are less likely to become infected. Deer and rabbits are less likely to eat the young branches and trees if they have to contend with sharp thorns. Similar to other cultivated honey locust trees, the Purple Robe grows to between 30 and 40 ft. (9 12 m) tall and has a spread of up to 30 ft. (9 m) wide. This tree also shows tiny clusters of beautiful florets in greenish-white that tend to bloom during late spring to early summer. The variety 'Purple Robe' features beautiful, fragrant purple flowers. Even in poor, infertile soils, the plants seem to grow. If you are not careful, it may lead to serious injuries. Honey Locust Tree (Gleditsia Triacanthos). This tree is distinguishable because it does not have thorns plus it grows really fast. Thornless honeylocust trees are tolerant to various stressors like pollution, salt, and drought. The New Mexico locust tree grows to between 16 and 32 ft. (5 10 m). The black locust tree is also called False Acacia, Fragrant White Locust, and Common Robinia. It is native to states such as Pennsylvania, Alabama, Georgia, Missouri, and southern Ohio. Despite being an independent tree, growing this variety with other trees is also fine provided they are in big compositions. If you encounter issues loading this site, please refresh the page by using Ctrl + F5 if on Windows or Cmd + Shift + R if on Mac. These prickly spikes can grow singularly or on thorned branches. fast-growing shade tree-2-3 ft per year; 40-50 ft tall, 30 ft across; drought-tolerant; suitable along streets or other narrow spaces; needs full sun; zone range 4-8; needs well . This pea family member (Fabaceae) tolerates poor . Note that various locust tree species also grow healthily in the wild, especially in North America. Considered among natures jewels and treasures, the locust tree continues to leave a good impression with its different types and varieties. Different to honey locust trees, the sharp spikes are short and dont grow in long branches around the tree. How long do purple robe locust trees live? We write how-to guides and tips for houseplants. They are usually about 2-4 inches long, flat, straight or slightly curved, and typically contain 3-10 seeds per pod. As the name suggests, it refers to the leaf of a locust tree, which is often pinnately shaped while being feather-like. She loves the heat and super drought hardy. You wont want to miss any of the show. They bear attractive flowers but many have spines, bristles or thorns.Genus name honors Jean Robin (1550-1629), of Paris, gardener to Henri IV and Louis XIII of France, who received new plants from Canada.Purple Robe is a medium sized, suckering, deciduous tree that typically grows to 30-40 tall with an oval-upright habit. The leaves are odd pinately compound with up to 23 lance . Mountain famous for continual blooms spring through autumn with just a bit of care. It forms an oval-upright canopy. This is also a drought-tolerant tree capable of blooming fragrant white flowers. In the fall, the green leaves turn to a stunning bright yellow color. . And the fact that it has thorns on its branches, makes it even worse! The honey locust has clusters of small, creamy-green flowers that bloom in late spring and early summer. The beauty of this mid-sized ornamental tree is that they can grow in just about any condition as long as the soil drains quickly after a rain. Robinia hispida is a nice dwarf tree with pink flowers and the exact same look as a purple robe locust, but a compact form that only gets 10 feet high. 1815 W. Iron Springs Road In commerce, it is synonymous with and frequently sold as R. pseudoacacia Purple Robe. The beautiful Purple Robe Black Locust tree. It's time for you to jump on this. The trees bark is furrowed and so dark a gray that it looks almost black. As with most types of honey locust trees, the skyline has a spiky trunk with thorned branches. Purple Robe Black Locust 'Purple Robe' locust is a tremendous medium sized, suckering, deciduous shade tree that typically grows tall with an oval-upright habit. Most locust trees bloom every year provided freezing did not kill them. Honey locust tree bark is gray-brown to red-brown and is covered in clumps of branched thorns. The Purple Robe has beautiful aesthetics because of its purple flowers. Growing at a rapid rate of 2 to 3 feet per year, this locust produces vibrant purple flowers that cluster and cover the entire tree in color. We use FedEx, UPS, or USPS at our discretion. Each cluster may be up to eight inches long and covers the tree profusely. There could also be dark green leaves. The tree also features dark red to black and leathery seed pods that are around two to four inches in length. It can even tolerate salt and drought. Black locust is resistant to black walnut toxicity. Also, honey locust tree leaves tend to be a lighter shade of green than the black variety. This cultivar has yellow foliage and grows 40 feet high by 25 feet wide. The Plant Sentry system includes a shipment certification program. RF2B161MJ - Blooming purple robe locust tree. Come discover lush, green landscapes, and find respite and inspiration in the shade of towering trees. 1. The main reason is its effectiveness in providing shade while controlling erosion. Even in poor, infertile soils the plants seem to do well. The new foliage emerges tinged with purple and matures to a bronze-green color. Another reason to love the honey locust trees is that they are stand-alone or independent, making them incredible choices for all kinds of gardens. It has lovely, dark rose-pink flowers. Drought tolerant. Locust tree identification during the spring is possible by checking out the presence of pendant clusters of sweet and fragrant pea-shaped flowers often in the shades of pink and white. The thorns of a Black Locust Tree are a product of evolution, and act as a deterrent to mammals browsing the foliage. A cultivar of the native black locust, it is also known as the Purple Robe Black Locust. Fruit pod-like, flat, brown-black 5-10 cm long, mature in Oct. Sun, will grow in about any soil except permanently wet. You can also control black and honey locusts by cutting back these trees each growing season. While the honey locust and the black locust trees are the major types of locust trees worldwide, they also have a few varieties and species that gained positive attention under them. It derived its name from the fact that it indeed has no thorns at the twigs and barks, making it distinguishable from other honey locust trees. The all-encompassing fragrance of its flowers is the reason behind its popularity in various gardens and parks worldwide. It can go at around 30 to 50 tall and 30 to 40 spread. It is also sometimes considered to be somewhat weedy. This variety has the term inermis which means that the Sunburst honey locust is a thornless tree. The honey locust Skycole cultivar is another popular shade tree for garden landscapes. While many say that locust trees are poisonous, you should still remember that not all of them are toxic and poisonous. The black locust is kind of invasive and features twenty-one leaflets less than two inches long. However, both the Robinia and Gleditsia species of locust trees have strongly scented blossoms. Promptly remove suckers as they appear unless naturalization is desired. The purple robe locust grows to a height of 20-30 feet and has dark green, pinnate leaves with 9-19 leaflets. L. These are ideal for a natural barrier on a property line or an ornamental accent tree in a landscape. . Popular sizes of select trees are 1 foot, 2 feet, 3 feet, etc. The pinnately compound leaves are also usually around seven to eight inches long. Both are known for being endemic in the entire region of North America. Mow the grass right up to the trunk to keep the plant as a single stem. Leaves are alternate and pinnately compound. Purple Robe Locust trees are very hard wooded and will tolerate storms well. It also has bright green and feather-like leaves. Michael Dirr (p. 1014, 2009) calls it an "alley cat" type tree which can survive under the toughest conditions. 1). It is endemic to a few small areas of the United States, but it has been widely planted and naturalized elsewhere in temperate North America, Europe, Southern Africa and Asia and is considered an invasive . As for its foliage, you can expect to see it in rich green during the spring and turning into yellow green then golden yellow in the summer and fall, respectively. Overall, it is one of the nicest accent and shade trees with the ability to resist deer and various diseases. The flowers are important sources of food for honeybees. In the common judgement hall, He was mocked and scorn by all. The growth of this tree is also mainly upright and features leaf gaps capable of casting sufficient lights so other lawn plants can grow. One thing to take note of about its toxic part is that it is concentrated on the leaves, bark, and branches. Locust Tree Fruit Characteristics. New growth is bronzy red. 'Purple Robe' Locust (Robinia pseudoacacia 'Purple Robe') This fast-growing, mid-sized ornamental flowering tree can survive the most difficult situations in different areas. Establish it the first year with careful watering. Other insect problems include caterpillars, weevils, scale and whiteflies. Join in The Morton Arboretum's mission to plant and protect trees for a greener, healthier, and more beautiful world. The 6- to 14-inch-long, dull, blue/green leaves, made up of multiple leaflets, are some . We have people waiting for their chance to own the Purple Robe Locust tree. The species of locust trees are divided into two genera: Robinia and Gleditsia. An excellent barrier plant to protect your property beautifully. Black locust is a fast growing tree that can reach up to 75 feet in height. It is hard wooded and tolerates storms well. The upright, rounded growth and short, irregular In general, honey locust trees are non-messy. It is also one of the honey locust varieties capable of growing really rapidly. With that characteristic, you will definitely be able to find it useful for the following purposes: You will love the ability of black locust trees to produce and provide highly durable and quality timber.