Some of its leaves yellow and fall off during times of drought. Fragrant Pink or Purple. Its relatively fine texture sets it apart from other landscape plants with less refined foliage. Thank you again!George, Hi George,Here's the thing...the insecticides would be preventative, but only you can determine if it's worth trying to treat the tree based on the current damage. Mow the grass right up to the trunk to keep the plant as a single stem. The treatments will only prevent new larvae, but will not control any previous damage or any larvae that have already been laid in the tree itself. 1. ?? How versatile. These beautifully fragrant clusters cover the tree profusely that grows up to eight inches long each! Leaf miner is a universal problem on the species. I would recommend good TLC and avoid any pruning, injury and be sure to water well throughout the season and into fall and winter.Insecticides at this point are only preventative and not curative. 5. Width: 20 - 30 feet. Required fields are marked *, 1815 W. Iron Springs Road It is by its nature not based … Mark unread; Skip to new; Mark unread Print Skip to new. Your email address will not be published. Shop 11.1-gallon pink purple robe locust flowering tree (lw01513) in the trees section of Lowes.com Some of the branches are dry. Bees and beneficial insects love the flowers. I have a 3 year old Purple Robe Locust with a split trunk all the way down.The trunk is about 8 inches around. Smoke bush is often used as an individual specimen … And it can kill small trees. Common name(s): 'Purple Robe' black locust, `Purple Robe' common locustFamily: LeguminosaeUSDA hardiness zones: 4A through 8B (Fig. They can take full sun or part shade. Easy Care Native Tree. One of the fastest-growing evergreen vines for mountain gardens. This fast-growing orchid-tree will ultimately reach 35 feet in height and width, the slender trunks topped with arching branches clothed in large, two-lobed, deciduous leaves. Fast-growing deciduous tree with a rounded growth habit to 35-40’ tall x 20-30’ wide. Purple Robe Locust botanical name is Robinia pseudoacacia, an improvement of the native Black Locust tree. 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. Wait until late spring, when the flowers are done blooming, before making any cuts. Purple Robe Locust(Robinia pseudoacacia 'Purple Robe') is a medium-sized upright tree, growing 40 feet in height with a compact, rounded form. Thanks, Bill. Best pruned in the dormant season as this tree will 'bleed' when pruned in spring. https://www.pubs.ext.vt.edu/content/dam/pubs_ext_vt_edu/ENTO/ENTO-141/ENTO-141-pdf.pdf. This attractive variety features compound leaves comprised of small, rounded leaflets that emerge with a showy reddish-bronze tinge, mature to a bluish-green, and turn shades of yellow in the cool of fall. 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. I deep root fertilized with Superthrive when I first noticed the leaves dropping. Purple Robe Locust tree trunk split. They can get by with little water. Depending on the health of your current tree, it's difficult to determine if it will survive. There are signs, however, to help you determine whether you are over-watering your trees. The trunk is long and straight with an interesting branching pattern. 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. 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 green. Any idea of what has happened? The branches of Purple Robe Locust (Robinia pseudoacacia ‘Purple Robe’) are brittle and tend to break in high winds. 2. Smoke bush, Cotinus coggygria, is a deciduous shrub that's also commonly known as royal purple smoke bush, smokebush, smoke tree, and purple smoke tree. 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 Robes’ . Purple Robe Locust has bluish-green foliage which emerges burgundy in spring. Nature lovers will cherish the black locust not only for its fine white blossoms but for its abundant crop of seeds that fall to the forest floor, feeding squirrels, turkey, deer, and other animals. Just plant in a sunny spot and enjoy! Trees send out long underground root suckers that not only become a maintenance problem but also can disrupt nearby gardening areas. In fall, before the leaves drop, orchid-tree is festooned with many showy and delightfully fragrant, 5-inch-wide blossoms, the narrow purple, pink, and lavender petals arranged to closely resemble an orchid. Each spring, the leaves emerge reddish bronze, before maturing to dark blue-green. Robinia pseudoacacia 'Purple Robe' Tree Characteristics. curvesarein Kingman, AZ(Zone 7b) Mar 05, 2011. Hi Bill, Sorry to hear about your tree. Other insect problems include caterpillars, weevils, scale and whiteflies. And it can kill small trees. Companion Plants with Purple Robe Locust for a Stunning Backyard. Sunshine Geraniums make gardening brighter! The large compound leaves have smaller blue-green leaflets, and you’ll love the fine-textured look of the tree in summer. Small branches of the Black locust fall easily during storms. 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. It is also sometimes considered to be somewhat weedy. Unfortunately Purple Robe black locust is a magnet for locust borers, which are a type of longhorn beetle. There are a hundred or more suckers coming up thirty or forty feet away from the tree. We’ve married the beauty of long stem roses with the Easy-care of shrub roses for landscape color like no other plant in the backyard. It grows as much as 20 feet in the first 10 years and can eventually grow 70 feet high. Once established, this tree is super hardy and drought tolerant with a brisk growth rate of 2 or 3 feet of growth each year. It has also destroyed my yard. 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. Possible disease problems include canker, powdery mildew, le… Extremely fragrant and only found locally at Watters. Would you recommend the best treatment and course of action - many thanks! You won’t want to miss any of the show. However, the Purple Robe Locust is gaining notoriety, offering its unique purple pods of blooms to contract its white blooming cousins. I planted a purple robe locust about six years ago and today it is a robust 30ft tree that provides wonderful filtered shade and profuse purple blooms in spring. Establish it the first year with careful watering. Purple Robe Locust Tree (Robinia pseudoacacia ‘Purple Robe’) 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. Follow the Watters planting guidelines for the best results. So far, so good. Trees along the highways in … Ask an Expert is made up of groups and individual experts. Also bothered by carpenterworm, locust leaf miner, and scales. The perfect cottage garden flower ideally grown in containers, hanging baskets, or raised beds. COPYRIGHT ©2020, WATTERS GARDEN CENTER. An impressive show and worthy of cutting a few flowers and bringing them indoors for enjoyment. Mountain famous for continual blooms spring through autumn with just a bit of care. ALL RIGHTS RESERVED. I have a three year old Purple Robe Locust tree on the East side of my house. Rose, Pink to white flowers cover this spring bloomer that often repeat blooms in fall. .yum! Wet sites should be avoided. Purple Robe Locust trees develop incredible, long clusters of purple colored flowers in mid- to late spring that look very much like Wisteria flowers. Purple Robe Locust Leaves Are Fewer This Year (2020) Asked June 20, 2020, 12:57 PM EDT . You have locust borers and based on their biology, there are three ways to treat. 3. If the tree is in severe stress, then doing insecticide treatments now would not be worth the product or time.The best information I can find on this insect is from Virginia Tech: https://www.pubs.ext.vt.edu/content/dam/pubs_ext_vt_edu/ENTO/ENTO-141/ENTO-141-pdf.pdf. Bu, overwatering is just as much of a problem as under-watering a tree. Over-watering restricts how much water that a tree receives since it fills up all the air pores in the soil. Incredible, long clusters of purple flowers in May that look just like Wisteria flowers hanging from this local bloomer. Don’t plant it too deeply, as is key for any new tree. It is susceptible to locust borer (often fatal) and locust leaf miner (browns foliage). An easy-care, fast-growing specimen in lawns. Trees send out underground root suckers that not only become a maintenance problem but also can disrupt nearby gardening areas. I would recommend good TLC and avoid any pruning, injury and be sure to water well throughout the season and into fall and winter. It is about 14-years-old. Longevity 50 to 150 years. Unfortunately Purple Robe black locust is a magnet for locust borers, which are a type of longhorn beetle. Quote. How to Use Purple Robe Locust in the Landscape. George. This species grows in a wide range of conditions. It can grow in just about any condition as long as the soil drains quickly after a rain. Disease, pests, and problems. These flowers appear on the trees from September through Novem… . The dark blue berries adorn this compact bush that takes the wind and soaks up the sun like a native. She loves the heat and super drought hardy. It’s the perfect summer shade tree. You seem to be taking good care of your tree. Flowers Showy. Make a great street tree, handling the tough conditions with ease. Trees send out underground root suckers that not only become a maintenance problem but also can disrupt nearby gardening areas. Fall clean up is easy with the small leaves. It thrives in many difficult growing conditions. It also tolerates salt, foot traffic, pollution a… Super hardy and drought tough with a brisk growth rate of 2 feet in one year. You can count on this bloomer to show off all summer long in raised beds, containers, or directly in the ground. Unlike many fast-growing trees, though, the honey locust does not have invasive roots or weak wood. These beautifully fragrant clusters cover the tree profusely and may be up to eight inches long each! Locust borer larvae. It is hard wooded and tolerates storms well. The 8″ inch fragrant clusters cover the tree profusely! Fragrant, Wisteria-like Purple Flower Clusters. Tree & Plant Care. Erect or Spreading with a High Canopy. Yes, you are correct. Robinia pseudoacacia, commonly known in its native territory as black locust, is a medium-sized hardwood deciduous tree, belonging to the tribe Robinieae.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 species in some areas. Each spring, the leaves emerge reddish bronze, before maturing to dark blue-green. Although I have never before seen any signs or pests on the tree, I am assuming it has a locust borer problem. 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. Bees and beneficial insects love the flowers. The wind is no problem for this evergreen bloomer. Accordingly, you should continue structural pruning when the tree is young to ensure that the tree has strong structure which may reduce the likelihood of branches breaking off. is considered to be a very easy-to-grow tree. Re: Leaves of Purple Robe Locust tree turning yellow--- Newt ( Jul 17, 05:00, 2005) Advice offered in this forum is of a general nature only. How do I treat purple robe tree borers and what product do I use to treat the tree? Hi George,Yes, you are correct. Among landscaping trees, honey locust has become very common, and with good reason. Will it survive or is this a disease? I canÂt pull them fast enough. Bookmark. See this plant in the following landscape: Cultivars / Varieties: 'Frisia' 'Purple Robe' Choose fragrant reds, radiant pinks, corals, vivacious yellows, and stately whites. Leaves Pinnately Compound Odd with Ovate Leaflets, Green, Golden or Yellow or Orange, Deciduous. With virtually no pruning ever of anything now that I had a,. 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