I described the tree to a knowledgeable friend who told me it was the Purple Robe cultivar of Robinia pseudoacacia, common name Purple Robe Black Locust. More. This should be done in a circle around the dripline of the tree and outward. Provides instant shade and structure to the landscape. Space plants far enough from building foundations, walls, and decks so that the growing foliage won't crowd the structure. She was right.This is the second year and it has tripled in size. In most cases, the problem can be traced back to improper irrigation during the drought. Its relatively fine texture sets it apart from other landscape plants with less refined foliage. Leaf miner is a universal problem on the species. © 2017 New Mexico State University - Board of Regents, College of Agricultural, Consumer, and Environmental Sciences, College of Agricultural, Consumer and Environmental Sciences (ACES). Proper irrigation is important to protect the remaining trees. Many types of borers are attracted to trees that are under stress. Two varieties of locust tree grow in the United States, the honey locust tree and black locust tree. Always use sharp, clean tools when pruning. I have a purple robe locust tree that the main trunk has split, but a 1/4 of the trunk is still intact. i thought we had lost them, but they have suckers? If the twigs are dead but there is healthy cambium, the may be new growth from the branches. It is susceptible to locust borer (often fatal) and locust leaf miner (browns foliage). If the spading fork encounters a root, remove it, move to the side, and start again. I have a 3 year old Purple Robe Locust with a split trunk all the way down.The trunk is about 8 inches around. Determine which application method is best for the situation and select a product designed for trees and shrubs, or go with a nutritionally balanced, general-purpose formula such as 10-10-10. My plan is to make kitchen countertops of heartwood black locust 2 x 5’s (true measure) planks. I’ve read that stainless steel screws are best to join the planks. How versatile. These trees are primarily for shade and are native to North America. Hi tree people, I cut down my Purple Robe locust tree because it was sending root suckers into my neighbor's lawn, across my garden, and into my vegetable beds, as well as dropping yellow leaves into my pond all summer and rarely flowering. hi, i have 3 purple robe locust that i planted in colorado, clay type soil. In some cases, there was no irrigation supplied to the trees. do i cut the tree that seems dead and just start with suckers? Pruning may be needed to remove dead branches, encourage bushier growth, promote more flowers, or maintain a specific size or shape. Over-fertilizing plants or applying at the wrong time during the growing season can result in plant injury. When a tree is newly planted, it is necessary to apply water at the base of the tree because the roots are in the planting hole. For more information about proper tree irrigation, contact your local Cooperative Extension Agent. We live in high wind area and I was planning on wrapping the split and … To prepare the planting area dig a hole as deep as the root ball and three times as wide. Is this a result of over-watering? It gets yellow leaves that fall into the pond and cover the patio every time the temp goes above 95, and I'm in a hot inland valley in Socal. I deep root fertilized with Superthrive when I first noticed the leaves dropping. Because they provide light shade with quick growth, they are perfect for virtually anywhere. Purple Robe Locust tree trunk split. There are literally THOUSANDS of shoots coming up … The rough cut planks air-dried for 20 months, and then the planks were fine-milled for direct use. Robinia pseudoacacia‘Purple Robe’ -- ‘Purple Robe’ Black Locust Page 4 Pests Locust borer is a serious pest although borer-resistant clones are now being developed. Provide shelter from strong winds. Purple Robe Locust is a very flexible, unique, and beautiful shade tree. When pruning to control a plant's size or shape, cuts should be made just above a leaf bud and at a slight angle. For the past several years, the purple blooms show up in June and stay for about a week, then fall off and the leaves start turning yellow and dropping off, although most of the leaves stay … This bud will be where the new growth sprouts. Plant in spring or early fall to give plants the best start. http://www.WyomingPlantCompany.com Purple Robe Locust has spectacular blossoms that bloom in June. This enriches the soil and loosens the existing dirt so that new roots can spread easily. Having a BS in Forestry, I know black locust … Re purple robe locust I live in cambridge ont and two years ago planted a purple robe locust, My gran from Scotland used to tell me about how beautiful they were. I have a three year old Purple Robe Locust tree on the East side of my house. A high tolerance for pollution makes this a good choice for urban areas or along busy roadways. Culture Purple-robe locust trees need full sun, although they will tolerate light shade. The temperature got down to 22 degrees for about 5 hours. These plants are known for their foliage, amongst other characteristics, which consists of tiny leaflets. Unlike many fast-growing trees, though, the honey locust does not have invasive roots or weak wood… Dead branches should be removed close to the trunk, flush with the bark. That is a result of scaring due to the damage going on inside. This is a high maintenance tree that will require regular care and upkeep, and is best pruned in late winter once the threat of extreme cold has passed. Robinia pseudoacacia‘Purple Robe’ -- ‘Purple Robe’ Black Locust Page 4 Pests Locust borer is a serious pest although borer-resistant clones are now being developed. I have a three year old Purple Robe Locust tree on the East side of my house. It is also sometimes considered to be somewhat weedy. This seems to have sent the roots into a shoot frenzy. The two types of locust trees are black locust and honey locust. But I’ve read conflicting advice on gluing black locust planks together. As of the date of this question, one has not produced any leaves this year. Will it survive or is this a disease? Purple Robe Locust Leaves Are Fewer This Year (2020) Asked June 20, 2020, 12:57 PM EDT. Posted by. Both types of locust tree are common ornamental plantings, but these sturdy trees are also useful in preventing erosion and as windbreaks. Twisty Baby® black locust (Robinia pseudoacacia 'Lace Lady'): Smaller size tree (20 feet high by 20 feet wide) with contorted limbs. There may also be borer insects involved, but these are often a secondary problem. Choose a location that will allow roots to spread and branches to grow freely. Pruning may be needed to remove dead branches, encourage bushier growth, promote more flowers, or maintain a specific size or shape. Also bothered by carpenterworm, locust leaf miner, and scales. Dead branches should be removed close to the trunk, flush with the bark. Positive: On May 27, 2013, weedsfree from Magna, UT (Zone 7a) wrote: I have not grown this tree for myself but I want to. The Purple Robe Locust tree is prized for its purple/pink wisteria like blooms. Become a member of the exclusive club and join the gardening elite! This seems to have sent the roots into a … It's been dropping leaves from the top for the past three weeks and is now bare except for the bottom two branches. Trees send out underground root suckers that not only become a maintenance problem but also can disrupt nearby gardening areas. I cut down my Purple Robe locust tree because it was sending root suckers into my neighbor's lawn, across my garden, and into my vegetable beds, as well as dropping yellow leaves into my pond all summer and rarely flowering. If the soil around the tree is so compacted that water runs off rather than soaking in, you may need to aerate the soil. If the first 2-4” (5-10cm) of soil is dry, it is time to water. It was 10ft high with three little sticks off the main branch it is now at least twenty feet high … As the tree grows, roots extend outward and irrigation must move outward with the root extension. This happened about 10 days ago and I don’t see any changes yet. As of the date of this question, one has not produced any leaves this year. It has bluish-green foliage which emerges burgundy in spring. two of the trees have small leaves coming out of trunk? Water regularly until established. curvesarein Kingman, AZ(Zone 7b) Mar 05, 2011. However, as the Purple Robe Locust will bleed if pruned when the sap is running in the spring, you should prune either in the winter when the tree is dormant and you can clearly see the shape of the tree, or in late spring/summer after the leaves are … do i cut the tree that seems dead and just start with suckers? hi, i have 3 purple robe locust that i planted in colorado, clay type soil. Purple Robe Locust Leaves Are Fewer This Year (2020) Asked June 20, 2020, 12:57 PM EDT. The oval pinnately compound leaves turn yellow in fall. For leaf diseases to be developing this year, frequent watering may be the cause. It is four years old and has been fine until this year. That is a result of scaring due to the damage going on inside. For a new, colorful brochure, contact the Water Use and Conservation Bureau of the New Mexico Office of the State Engineer (1-800-WATER-NM, or www.ose.state.nm.us). Another thing I noticed about my purple robe black locust tree is it had a rather large bulge at the top of the trunk where the branches begin to come out. After removing the soil, mix it with some compost or peat moss. Purple Robe Locust is a tremendous shade tree that develops long clusters of purple-colored flowers in May that resemble Wisteria flowers. Locust borer larvae. Over the next … Locust borer larvae. two of the trees have small leaves coming out of trunk? Purple Robe is considered to be a very easy-to-grow tree. Trees along the highways in the south … Their holes will be 1/4″ to 1/2″ wide and several inches deep as they drill. Any wood damaged by borers may need to be pruned out, but first check for life in the branches as described below. This is Prince, my “Purple Robe” Black Locust, only one year after I planted it. u/MannyDantyla. I have four Purple Robe locust trees in my yard. If roots are tightly packed gently rake them apart with your fingers. Deciduous trees can be pruned at any time to remove dead or diseased branches. Wait and watch for continued leaf emergence over the next year; prune out dead branches after new growth has emerged. Water the plant well then add a 2” (5cm) layer of mulch, such as shredded bark, around the planting area. The two types of locust trees are black locust and honey locust. I have a beautiful 15 – 18 ft ‘Purple Robe’ tree and everyon in my neighbourhood loves it , as do I. I t is in a large flower bed and currently is doing fine, but in recent years I have been finding 1-2 volunteer seedlings that are Robinia, but would they likely be the white flowered original sopecies or would these by chance be true ‘Purple … Watch Reply. Re purple robe locust I live in cambridge ont and two years ago planted a purple robe locust, My gran from Scotland used to tell me about how beautiful they were. Changes to our landscapes, conversion from traditional lawns and water intensive landscapes, have also had a negative impact on trees. Feed in early spring when plants start growing. It was 10ft high with three little sticks off the main branch it is now at least twenty feet high and 15 ft wide. Purple Robe Locust is a very flexible, unique, and beautiful shade tree. Will it survive or is this a disease? I am getting similar questions from all parts of New Mexico. Return the soil to the planting area packing it firmly around the root ball. Their holes will be 1/4″ to 1/2″ wide and several inches deep as they drill. As the leaves first emerge they have a pretty burgundy color. Eggs hatching in the spring will bore into the trunk and as they bore, you’ll might notice a white colored wood dust accumulating on the bark. They can take full sun or part shade. Locust is an encompassing term used for both black locust and honey locust, related members of the pea family. It appeared healthy before this. Pruning may be needed to remove dead branches, encourage bushier growth, promote more flowers, or maintain a specific size or shape. University is an equal opportunity/affirmative action employer and educator. If the root ball is wrapped in burlap fabric this must now be removed along with any string or wire securing the burlap. The other one is also four years old, and it has sparse leaves on only one side of … Learn more about our mission and programs. curvesarein Kingman, AZ(Zone 7b) Mar 05, 2011. Many shrubs can be regularly sheared to keep them shaped as a hedge, edging or formal foundation planting. These trees are primarily for shade and are native to North America. Among landscaping trees, honey locust has become very common, and with good reason. One of our best selling trees! Watch Reply. They are generally adaptable to many climates and conditions, though the black locust is urban intolerant. Look for supple twigs that have a bright green cambium layer under the bark. This is Prince, my “Purple Robe” Black Locust, only one year after I planted it. Always follow the fertilizer package directions for application rates and scheduling. Two of them are doing just fine. A slow, one-hour trickle of water should do the job. Thank you for your … Locust borer may infest the tree, killing it in some cases, and locust … These tend to be problems in wet years. We seek to improve the lives of New Mexicans, the nation, and the world through research, teaching, and extension. You have locust borers and based on their biology, there are three ways to treat. You have locust borers and based on their biology, there are three ways to treat. Deep watering encourages roots to grow further into the ground resulting in a sturdier plant with more drought tolerance. Both are fast-growing and bloom once a year. Archived. Locust trees dying Question: I have four Purple Robe locust trees in my yard. A classic favorite for landscape focal points. Other insect problems include caterpillars, w… Pole pruners and tree saws are better for large, mature shrubs or trees. BEST ANSWER: The Purple Robe Locust I bought a couple years ago is in a sandy location, between two large blue spruce trees and is doing amazingly well. Depending on rainfall, new plants need to be watered weekly through the first growing season. Is my tree dead, or will it sprout new leaves? The attractive features of the ‘Purple Robe’ locust tree are its young red leaves that turn to blue-green and then turn yellow in fall. Over the next few seasons, tree growth will fill in any gaps left by pruning. Prune dead wood in the summer after the new growth has developed and revealed the dead tissue. Locusts naturally turn yellow in fall prior to losing their leaves -- this is not a cause for concern. The tree is trying to heal and strengthen itself so its bulking up the weak spots. Once the tree is established, the roots that absorb water are located in the soil below the farthest extent of the tree's branches (the dripline) and beyond the dripline. Both trees are flexible and are green inside but are just not blooming at all. In other cases, the trees were watered but in a manner that did not benefit the tree. Consider whether tall trees or shrubs will block windows or interfere with the roof or power lines. While it is possible that at least one of two affected trees may survive, the other may not survive. Keep the mulch at least 4” (10cm) away from the trunk of the plant as this can keep the bark too moist and cause it to decay. Landscape Attributes Purple Robe Locust is a … It airs on KRWG in Las Cruces Saturdays at 4:30 p.m., on KENW in Portales on Saturdays at 10 a.m., and on KNME in Albuquerque on Saturdays at 9:30 a.m. Curtis W. Smith, Ph.D., is an Extension Horticulture Specialist with New Mexico 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. If the twigs retain a viable cambium layer, the tree may recover totally if properly irrigated (see below). She was right.This is the second year and it has tripled in size. i thought we had lost them, but they have suckers? A landscape company planted one in my yard about five years ago. I have a 3 year old Purple Robe Locust with a split trunk all the way down.The trunk is about 8 inches around. The bare limbs appear alive although they are leafless. It grows as much as 20 feet in the first 10 years and can eventually grow 70 feet high. My Purple Robe is destroying my neighbor's lawn with all of the suckers. do i clip those off and then the tree will start to … To check for soil moisture use your finger or a hand trowel to dig a small hole and examine the soil. Can my precious tree be saved! To remove the plant from the container, gently brace the base of the plant, tip it sideways and tap the outside of the pot to loosen. It thrives in many difficult growing conditions. The honey locust (Gleditsia triacanthos) is a fast-growing tree. Adapts well to a range of soils with excellent drainage. Monitor new plants through the first two years to make sure they are getting the moisture they need. Now that I had a name, it was time to do some research. Hi, My 3 year old purple robe locust tree was just starting to put on it’s leaves when we got a snap freeze that killed them all. Rotate the container and continue to tap, loosening the soil until the plant pulls smoothly from the pot. The two on my property have been there for at least 20 years that I know of. It is very hardy for Wyoming landscapes. 1 year ago. Wait and watch for continued leaf emergence over the next year; prune out dead branches after new growth has emerged. Because they provide light shade with quick growth, they are perfect for virtually anywhere. Both are fast-growing and bloom once a year. Mark unread; Skip to new; Mark unread Print Skip to new. The container can also be removed by carefully cutting it down the side. One of our county agents reported to me that he was receiving samples of locust borers. Also bothered by carpenterworm, locust leaf miner, and scales. An impressive show and worthy of cutting a few flowers and bringing them indoors for … There are many tools available depending on the job. This tree should be planted at least 20ft from buildings, and is a great choice next to … The trunk of the Robinia Purple Robe Locust Tree is long and straight with an interesting branching pattern. Hand shears, pruners, and loppers are ideal for most shrubs. It is four years old and has been fine until this year. Locust tree leaf rust Question: My purple robe locust has rust on many leaves. It appeared healthy before this. Purple Robe Locust has chains of fragrant rose pea-like flowers with yellow eyes hanging below the branches in late spring. Fill the hole until the soil line is just at the base of the plant, where the roots begin to flare out from the main stem. 574. Dwarf Arborvitae, Mock Orange, Blanket Flower. Leaf miner is a universal problem on the species. Two of them are doing just fine. When pruning to control a plant's size or shape, cuts should be made just above a leaf bud and at a slight angle. It's been dropping leaves from the top for the past three weeks and is now bare except for the bottom two branches. Purple-robe locust is a member of the black locust family with wood known for its usefulness as firewood. Dead branches should be removed close to the trunk, flush with the bark. I was wondering if you had any advice or knew of any reason why this would be happening. Purple Robe Locust tree trunk split. Close. The bare limbs … The other one is also four years old, and it has sparse leaves on only one side of the tree. Drought stress is one such stress and may be responsible for borer damage in many trees. A hardy late spring flowering tree that is a fast grower and grows up to 35' with a 20' spread. The fruit is not ornamentally significant. Twisty Baby® black locust (Robinia pseudoacacia 'Lace Lady'): Smaller size tree (20 feet high by 20 feet wide) with contorted limbs. Eggs hatching in the spring will bore into the trunk and as they bore, you’ll might notice a white colored wood dust accumulating on the bark. These beautifully fragrant clusters cover the tree profusely that grows up to eight inches long each! Trees along the highways in the south can be The Purple Robe Locust tree is a medium-sized upright tree, growing 40 feet in height with a compact, rounded form. This site uses cookies to improve your experience and to help show ads that are more relevant to your interests. After that they should be sturdy enough to survive on their own. Another thing I noticed about my purple robe black locust tree is it had a rather large bulge at the top of the trunk where the branches begin to come out. They are generally adaptable to many climates and conditions, though the black locust is urban intolerant. Best used for large scale plantings. I noticed some of you writing about a purple robe locust (robinia ambigua) tree. You will need to prune off any dead wood. Please join us on Southwest Yard & Garden, a weekly program made for gardeners in the Southwest. Very easy to grow in virtually any location. Dangling dark rose flowers adorn the branches from late spring to early summer and are extremely fragrant. This tree is in my frontyard. 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. Mark unread; Skip to new; Mark unread Print Skip to new. "Purple Robe" has some serious and some less serious pest issues. More. When pruning to control a plant's size or shape, cuts should be made just above a leaf bud and at a slight angle. Set the plant in the hole. Watering at the base of the trunk is an inefficient use of water and of little benefit to an established tree. do i clip those off and then the tree will start to have leaves? State University's Cooperative Extension Service. 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. You can create channels that allow water to permeate the soil by carefully pushing a spading fork into moistened soil and pulling it back to "crack" the soil. I deep root fertilized with Superthrive when I first noticed the leaves dropping. If a tree is so large that it can't be safely pruned with a pole pruner, it is best to call in a professional tree service. This tree should be planted at least 20ft from buildings, and is a great choice next to your patio, in the parkway, or in open areas of the yard. New Mexico State The tree is trying … This fast-growing Locust tree, 2' (.6m) per year, is adaptable to most soil types and moisture levels. The tree has thorns but its' foliage is delicate and similar to honeylocust. It is now about 8 feet tall and flowered twice last summer, despite a late hard freeze that damage the newly opening buds. I found that these trees can tolerate poor soil conditions. Fertilizers are available in many forms: granulated, slow-release, liquid feeds, organic or synthetic. If there is so much dieback that the tree will not look good, you may prefer to remove the tree. Answer: The locust trees are subject to leaf diseases such as rust and powdery mildew. There are 2 of the purple blooming ones and 1 white blooming one down the street from me. During hot spells thoroughly soaking the ground up to 8” (20 cm) every few days is better than watering a little bit daily. Purple Robe Locust is a deciduous tree with a more or less rounded form. Established trees should be fertilized every 2-3 years. I have an old black locust that is very well behaved, so I am still in shock and upset about this tree.
2020 is my purple robe locust dead