There are plenty of reasons why the thornless honeylocust is such a frequently planted tree! You are ready to begin filling in with soil. They are fast growing, gaining two to three feet per year, and reach a medium tree height of thirty to forty feet. Trees send out underground root suckers that not only become a maintenance problem but also can disrupt nearby gardening areas. My Purple Plum Tree Looks Black Like Fungus: What Is This. 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 purple locust tree is a member of the legume family, which means that it can fix soil nitrogen, which allows it to survive in sandy soils. Fruit will be dwarfed and often drops early. Thornless honeylocust trees are tolerant to various stressors like pollution, salt, and drought. Purple Robe Locust Tree Pros And Cons. Locust is a tool in the Load and Performance Testing category of a tech stack. Be sure to roughen up the sides of the hole so that its easier for the trees roots to take hold. Thornless honeylocust works well as firewood. When the pinnate leaves first appear in the spring, they are bronze-red; during the summer, they turn blue-green; and ultimately, in the fall, they turn yellow. Theyre not susceptible to many diseases aside from Canker. Thornless honeylocusts are extremely adaptive. 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. The purple robe locust tree grows to a height of 20-30 feet and has a spread of 15-25 feet. How to Plant a Texas Ash Tree in and How Much Soil? The trees bark is furrowed and so dark a gray that it looks almost black. Once well-established, the Purple Robe Locust tree has excellent drought resistance and is simple to cultivate. It is also sometimes considered to be somewhat weedy. Under the tree, grass can grow because of the tree's tight canopy and short, crooked branches, which create a medium amount of shade. Plus, thornless honeylocusts provide plenty of dappled shade that still allows grass to grow underneath. Also, black locust tends to seed itself a little too generously. The thornless honeylocust is a great tree to plant on hillsides. Seek a professional recommendation and follow all label procedures to a tee. 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. The powdery white or gray fungus is usually found on the upper surface of leaves or fruit. It is susceptible to locust borer (often fatal) and locust leaf miner (browns foliage). Set the tree into the hole you dug in Step 1. The Cons: Unfortunately, the Purple Robe Locust Tree can also be quite messy. Purple Robe Locust Tree Problem - Ask Extension The stem may also start to soften and collapse. Geoff Lawtons work in Jordan using fast-growing nitrogen fixing trees for coppice and fertility building: https://www.greeningthedesertproject.orgBen Falk on Black Locusts: https://youtu.be/hYdyAziLanUWays to support our work: Paypal.me/ParkrosePermaculturewww.Patreon.com/ParkrosePermaculture1www.ko-fi.com/ParkrosePermacultureJordanian Desert photo used out of the Creative Commons: https://commons.m.wikimedia.org/wiki/File:Jordan,_Wadi_Rum_Desert,_Khor_al_Ajram_2.jpg Each zone corresponds to the minimum winter temperatures experienced in a given area. Shademaster honeylocust as its name indicates is a shade tree. This was mostly done for conifers and broadleaf evergreens, but has become common for deciduous trees as well. Purple Robe Locust Tree Pros And Cons - answering101 Other insect problems include caterpillars, weevils, scale and whiteflies. Sanitation is a must - clean up and remove all leaves, flowers, or debris in the fall and destroy. Keep nitrogen-heavy fertilizers to a minimum as well as over-irrigating as they encourage lush growth. Full Sun or Shade for a Crimson Queen Maple, Missouri Botanical Garden: Robinia "Purple Robe", The University of Utah: Facilities - Purple Robe Locust, Utah State University Extension: Integrated Pest Management - Locust Borer, How to grow your own herb garden in any indoor or outdoor space. U.S. Department of Agriculture hardiness zones 4 through 8 are suitable for the purple robe locust. If you see an increase in adults, spray the lower branches of trees and shrubs with an insecticide. Purple Robe Locust Tree Pros and Cons - DerivBinary.com Never amend with less than half original soil. Spray trunks and lower limbs of trees and shrubs when adults begin to emerge in order to eradicate the pests. Scales can weaken a plant leading to yellow foliage and leaf drop. They can grow more than two feet in a year and can survive in many different types of soil. Purple Robe Locusts are excellent street trees and provide refreshing shade for decks or patios. I fell in love last Thursday. Different locust trees are classified as part of the Gleditsia or Robinia genera. They gradually grow to a dark green hue and turn yellow in autumn. Prevention and Control: keep weeds down, scout individual plants and remove caterpillars, apply labeled insecticides such as soaps and oils, take advantage of natural enemies such as parasitic wasps in the garden and use Bacillus thuringiensis (biological warfare) for some caterpillar species. Thornless honeylocusts require very little pruning and can mostly be left to their own devices as they mature. Locust Tree Fruit Characteristics. It is also a great shade tree. 8. Check out the pros of thornless honeylocust trees below. However, purple locusts will not tolerate "wet feet" and therefore require good drainage. For one, its seeds and seed pods are consumed by livestock and other animals like squirrels, deer, and rabbits. The pinnate compound leaves of the purple robe tree can be a foot long, give or take a few inches. But if theyve started to form around the root ball or pot, its best to loosen them a bit. Grow in average, dry to medium, well-drained soils in full sun. Most succulents will not exceed 12 inches in height or width. Purple Robe Locust is a deciduous tree with a more or less rounded form. http://www.tytyga.com/Purple-Robe-Loc. Go easy on the nitrogen fertilizer. Join in The Morton Arboretum's mission to plant and protect trees for a greener, healthier, and more beautiful world. One drawback to thornless honeylocusts is that their fruit pods can create a mess in the fall. Once tree is established, water ring may be leveled. Black locust is resistant to, Robinia pseudoacacia L. (black locust), inflorescence, Robinia pseudoacacia L. (black locust), bark. If the plant is not getting enough water, the leaves will start to shrivel and turn brown. This cultivar has yellow foliage and grows 40 feet high by 25 feet wide. A magnificent barrier plant that provides good protection for the property. For more please watch the video. Because most of the root system is lost in digging, sufficient top growth should be removed to compensate for this loss. The tree may grow in the partial shade even though it prefers full sun. Here's a list that our experts recommend for this variety. The individual leaflets are about 1-2 long by roughly half as wide, with a rounded shape. When I talked about planting it, I got lots of folks trying to talk me out of it - for good reason! The honey in honeylocust comes from the sweet substance found in the trees fruit pods. These thorns can reach up to 2 inches in length and are quite sharp, making them dangerous if youre not careful around them. She also wrote for the BBC-TV news magazine "From Washington" and worked for Discovery Channel online for more than a decade. Simply have a tree service spray for bugs a few times each year. The thornless honeylocust is a popular tree species thats often planted in urban areas because its so adaptable and resistant to urban stressors. This tree is a genuinely distinctive shade tree that has recently gained popularity. Possible disease problems include canker, powdery mildew, leaf spots, wood rots and verticillium wilt. The native species of honeylocust has thorns. Thornless honeylocust produces strong, durable wood. The Arboretum has the expertise and advice to help you beautify your home landscape, improve your community, and advocate for trees. Fill both holes with soil the same way. HOWEVER, when properly managed and understood, this tree has a place in an early permaculture garden. It is one of the hottest burning firewoods out there. The tree's seeds are enclosed in 3 to 4-inch long pods. I spotted the object of my desire over the fence in a yard of one of the houses near the creekside walkway. Black cherry tomatoes are a delicious and, Read More Black Cherry Tomatoes When to PickContinue, Your email address will not be published. 9+ purple robe locust tree pros and cons most accurate. We also share information about your use of our site with our social media, advertising and analytics partners. Young trees can be transplanted in a . Landscape Attributes. The fruit is a flat, brown seed pod that matures in late summer or early fall. Save my name, email, and website in this browser for the next time I comment. The tree bark is highly furrowed and dark grey, almost black. Purple Robe Locust (Robinia pseudoacacia 'Purple Robe') at Moana Nursery Is Locust Good Firewood? - Modern Ethanol Fireplaces The purple robe locust tree blooms in the spring with clusters of white flowers that have a sweet fragrance. Yes, locust trees have invasive roots. Fungi : Leaf Spots Leaf spots are caused by fungi or bacteria. Moderately fast growing, compact, rounded, deciduous tree with spiny shoots. Thornless honeylocusts benefit other types of wildlife, such as deer, rabbits, and bees. In the spring, usually in May through early June, the purple robe locust tree produces fragrant pinkish-purple flowers on hanging racemes that may be up to 8 inches in length. While these trees have demonstrated invasive traits, there is insufficient supporting research to declare them so pervasive that they cannot be recommended for any planting sites. Since 1816, Stark Bros has promised to provide customers with the very best fruit trees and plants. Youll often see thornless honeylocusts near parking areas and streets for this reason. In the spring, clip the blossoms to make lovely bouquets. Tolerates a wide range of soils including sandy or nearly barren ones. Young scales crawl until they find a good feeding site. The bark of the tree is deeply furrowed and extremely dark grey that it appears nearly black. Though a popular street tree, it really should not be used close to power lines where mature, hard wood has to be pruned in order to keep a nice form. The leaves are pinnately compound with 9-19 leaflets. How to Save a, Read More What Does a Dying Succulent Look LikeContinue. The beautiful Purple Robe Black Locust tree. As a general rule, try to avoid disturbing the roots as much as you can. Mow the grass right up to the trunk to keep the plant as a single stem. I would recommend good TLC and avoid any pruning, injury and be sure to water . If the tree seedling does not have branches, allow it to grow to the desired height of branching then pinch it back to stimulate the lower buds to form branches. In general, thornless honeylocusts are low-maintenance and easy to care for. At the same time, it still allows the grass to get the nutrients it needs. Avoid pruning in spring when it tends to bleed. As long as a tree service sprays your thornless honeylocust a few times each year, you shouldnt have a problem. 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. 9+ purple robe locust tree pros and cons most accurate 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. Avoid overhead irrigation if possible; water should be directed at soil level. This tree species can grow more than two feet in a single year! Flowers are followed by smooth, flat, purple-brown seed pods (to 4 long). Jessica Allen likes to share helpful information with current and aspiring homeowners. These include acidic soil, alkaline soil, and salty soil, as well as both moist and dry soil. Theyre hardy and adaptable, and they arent too picky about the environment they grow in. Pest : Leaf Miners Leaf Miner is actually a term that applies to various larvae (of moths, beetles, and flies) that tunnel between upper and lower leaf surfaces, leaving a distinctive, squiggly pattern. 2. Purple robe tree leaves are around a foot long. Purple Robe Locust (Robinia sp) is a gorgeous nitrogen fixing tree. Spreads by root suckers. in American Studies from Columbia University and lives in Queens with her two cats. Singleton holds a master's degree in musicology from Florida State University and is a member of the American Independent Writers. Black Locust Tree leaves are compound alternate leaves in an overall arrangement that is approximately 6-18 long by ~4 wide. Diseases to keep an eye out for when caring for purple locust trees are powdery mildew, leaf spot and canker. It grows in conditions that are not good for most other plants and animals. When I talked about planting it, I got lots of folks trying to talk me out of it - for g. The purple locust tree can become infected with locust borers, which are black beetles with yellow markings that create tunnels inside the trunks and branches of the tree, weakening it. However, as you may have guessed from its name, the thornless honeylocust does not have any thorns. Its just that simple. link to French Press Vs. Pour Over: Which Coffee Maker Is Better. This species grows in a wide range of conditions, but avoid growing it in wet sites. Select a tag below to view all the items that have that particular trait. The growth rate of a purple-robe locust tree is between 2 and 3 feet each year, and it can reach a full height of 40 to 50 feet, with a width of approximately 30 feet. Black locust pros and cons (woodland forum at permies) Prevention and Control: Keep weeds down and scout individual plants for tell-tale squiggles. Pick and destroy these leaves and take advantage of natural enemies such as parasitic wasps. These days there are seemingly endless ways to brew a cup of coffee in the morning. This tree is often used as an ornamental plant due to its attractive flowers and graceful form. Required fields are marked *. Then they mature to a beautiful blue-green in the summer. 3. 'Purple Robe' is a medium sized, suckering, deciduous tree that typically grows to 30-40' tall with an oval-upright habit. It grows upwards with spreading branches . Thornless honeylocust is a widely-used shade tree that grows in a round or slightly oval shape. The New Mexico locust tree, or Robinia neomexicana, isn't a Mexican tree, contrary to its name. Purple Robe Locust Tree Pros and Cons, Zone, Seed, Diseases Young trees should be pruned in the fall or winter to strengthen the structure of the tree and to develop its desired shape. Locust Tree With Purple Blooms | Home Guides | SF Gate They also produce a sweet substance called honeydew (coveted by ants) which can lead to an unattractive black surface fungal growth called sooty mold. The sweet-smelling flowers bloom for 10 days in late spring. This may be done at the nursery before you buy the plant or you may have to prune at the time of planting. It has lovely, dark rose-pink flowers. Clusters of flowers ranging in length from four to eight inches and blooming in the late spring are characteristic of this plant. Additionally, the roots of this tree can grow aggressively and damage sidewalks or driveways. Best performance is in moist, organically rich loams. Another disadvantage is that the branches of this tree are brittle and can break easily in strong winds or storms. The purple robe locust tree is often used as an ornamental tree because of its beautiful flowers and autumn foliage. When a succulent is dying, it will start to lose its color and become pale. Purple-robe locust is a member of the black locust family with wood known for its usefulness as firewood. They are also susceptible to locust borers. Thornless honeylocusts grow very quickly. Purple Robe Locust ( Robinia pseudoacacia) This black locust cultivar likely reaches a height of 40 feet and a spread of 20 to 35 feet. Super hardy and drought tolerant with a brisk growth rate of 2 feet in one year.