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Thanks! All three of these plants have retained the Acacia name. Most are native to Australia, but there are also many from the Old World, particularly Africa. Thinning the canopy helps to prevent storm damage. In this article, I am going to continue to call them acacia, but where a name change has occurred, I will give the new name also. Walnut is darker (that's true) with just as much movement as Acacia. The shoestring acacia is a popular low water use shade tree in Pinal County. It also has a new name: Senegalia greggii. It is named for the curving thorns located along the stem in an alternating pattern. How does it look? Willow trees (botanical name is Acacia salicina) are a great desert tree for our Arizona desert climate if you want a large fast growing tree. The dense crown can catch wind easily and some limb breakage is possible. The biggest problem I have seen with the Dead Willow Acacia Tree's is them regenerating from the root. Thanks-This is more than what has been typical of this tree. They will demand only a minimum of water to stay alive, but given larger amounts most of the shrub-like plants will grow into small trees. Lifespan: 15-50 years. That is why scientists continue to focus their attention on them. Willow Acacia (Acacia salicina) Another of my favorite imports from Australia, Willow Acacia offers beauty in narrower spaces. By understanding the many different forms, and knowing their specific needs, we can use this valuable group of plants to create well-designed and beautiful desert gardens. Are you open to changing tv location? An email has been sent to with a link to confirm list signup. The thorns resemble closely the shape and size of the claws of a cat. Or is that to another section of the home? The most recent issue of “Desert Plants,” a magazine published for the Boyce Thompson Arboretum by the University of Arizona, lists name changes for twenty different Acacia plants that are either native or are adapted to our climate. If you have questions, you can reach one of our Master Gardener volunteers every week day except Saturday and Sunday between 9 am and 12 pm by calling the Master Gardener hotline at (520) 374-6263. I don't see a pattern- this is on new and old growth, top to bottom, but not all over. Walnut can also have plenty of movement. Editing thoughtfully and adding some magic result in a timeless weekend retreat, Sometimes the best defense is a good offense, If the vibrant flowers of this Southwestern native tree don't blow you away, the hummingbirds, fire resistance and low maintenance will, Are our design choices hardwired? The Arizona Community Tree Council lists sweet acacia as a tree that attracts Arizona wildlife. With all of that said, let’s wade right into the fray and take a firsthand look at some of the plants we normally add to our landscapes that carry the name of acacia. It is hardy to desert conditions and like to locate the plant next to a wall or a corner away from traffic. Acacia baileana Bailey’s Acacia 20’-35’ Evergreen Yellow Agonis ˚exuosa Peppermint Willow 20’-25’ Evergreen Small White Albizzia Julibrissen Silk Tree 20’-30’ Deciduous Pink Still, if we are going to accurately describe a plant, and decide if it will do the job required, we need to know the various names for the plant, just for clarity’s sake. They grow in a wide variety of climates and are easy to care for. We have discussed this since 2009 but nothing has been done. Willow Acacia trees are a great desert tree for the Phoenix, AZ climate. Willow trees like damp conditions and a large mature tree is thought to extract around 1000 liters of water a day from its surrounding soil. It has a life span of about 10–15 years. So unless there is some other quality about acacia that makes it less desirable than oak, I don't see a problem with choosing it for a house with kids and dogs. You sound like someone who likes "movement" (lots of different colour changes in a single floor). Members of the acacia can be found from alpine forests to the driest of deserts. Description Form: Tree. Growth rate: Rapid. Willow acacia (Acacia salicina) is a drought-tolerant tree that grows up to 3 feet per year. I don't see a pattern- this is on new and old growth, top to bottom, but not all over. Willow Acacia (Acacia salicina) The willow acacia is another interesting-looking tree that produces very little litter. It is a medium-sized, thornless tree, native to Australia. The easiest way to split them up in a way that makes sense is to divide them into two groups: those with thorns and those without. You can also call the Cooperative Extension office, 820 E. Cottonwood Lane, Building C, in Casa Grande at (520) 836-5221, extension 204 and leave a message. I am having the same problem deciding between those 3 that you named and also pebblestone clay. Their relative low maintenance, lack of thorns, and graceful willow-like growth habit makes this tree an asset in … In hindsight the worst effected was the Willow Acacia. One is doing well and other one(20ft away) is very scraggly and does not have a lot of new growth. In the last few weeks, some of its leaves are turning yellow to brown and finally dropping. While the name may or may not ring a bell, those of us acquainted with desert landscapes would recognize them readily when they saw them because they are so prevalent. I believe that we can all agree that this is an important feature to know before we plant, if we want to avoid the unpleasant effects of getting too close for comfort. Error! These landscape-pro faves straddle the seasons beautifully. She explained why she planted the tree close to the fence and boundary was to keep her lawn and property dry from storm water. The yellow round flowers cover the plant and give the tree a shot of bright color when in bloom. Tree root problems are not always solved by the removal of the tree, … It is a large shrub or small evergreen tree growing 3 to 20 m tall. Here are some more problems that might affect this tree: Wilting or browning of the tree due to severe drought conditions. I see you marked one door, "never used". While in the design mode, consider plants with interesting features, such as attractive bark, exquisite branching systems, or flowering habits. Thinning the canopy helps to prevent storm damage. Gibson: Hardy acacias can be somewhat perplexing, Arizona City woman arrested for stabbing man, Coolidge man arrested for attacking woman in Eloy, Florence prison on lockdown after inmate disturbance quelled, Coolidge woman arrested after knife fight, Man appeals negligent homicide conviction in CG. Its dense, spreading mound shape make it perfect for covering bare ground and hiding wildlife in a garden. Some of the most useful and hardy of desert landscape plants are those that bear the name of acacia but the great variety of shape, sizes, and uses can often make it difficult to decide which one to plant. Deep, infrequent irrigation helps to develop a strong, anchoring root system. There are also three commonly planted acacias that do not produce thorns. There was an error processing your request. Willow acacia tree requires relatively little care and can withstand long periods of drought. They interfere with streets and sidewalks, sneak into septic lines and cause trip hazards. The cat-claw acacia is a small shrub that can grow larger with extra moisture. Although they can be attractive, acacia trees are also very invasive and can overtake your garden if left to grow unchecked. Just who are these guys and how do we make heads or tails out of them? The dense crown can catch wind easily and some limb breakage is possible. Those who love landscape plants are not the only ones asking that question. Acacia has nice movement without getting too busy. My willow acacia, planted 2 years ago, has done so well and is a handsome tree, perfect for my backyard. I don't see bugs, but there might be something really small, I suppose. Those kinds of questions are what we really want to know. Understanding the factors involved in tree damage to buildings, including soil type and depth of foundations, will help both tree and house owners determine what action to take and when to get … Most acacia plants (Acacia spp.) All trees, even evergreen ones will shed leaves. There aren't many fast-growing shade trees that fit into narrow spaces and can take our brutal heat. More than half of the leaves on the tree look green and healthy. Willow scab refers to the discoloration of tree leaves and branches with black or brown spots and cankers, according to University of Florida Extension. It can reach thirty feet tall and about twenty feet wide. Consider the lasting appeal of forms from the hunter-gatherer life, Bring something a little different to your landscape with a tree that dives, twists or crawls, Swales, underground pipes or a mix of both: There’s more than one way to distribute water in the garden, Enjoy fountain grass for its exuberant form, long-lasting color and texture for borders and more, Make the most of small spaces on decks and balconies to enjoy your pick of vegetables, fruits and herbs. Tree Common Name Avg. It has a more open canopy so its shade footprint is less than the willow acacia but it is still used successfully as both a shade tree and an accent plant. The Acacia will be less than Hickory and about equal to Walnut when it comes to different colours in a single species. Acacia salicina is a thornless species of Acacia tree native to Australia.. Common names include cooba, native willow, willow wattle, Broughton willow, Sally wattle and black wattle.. It gets watered about once a week by slow soak for several hours. It is one of the first to flower in the spring and has a strong, sweet-smelling aroma that makes it easy to pick out during its flowering period. The new name is Vachellia constricta. Quiet Willow, Scottish Thistle or Harbor Grey?!? 2 wears ago we planted 2 willow acacias in our yard. Could one enhance your own yard? http://www.ericksonsfloors.com/janka.htm. Whitethorn has long, straight, white-colored thorns that are most obvious when the plant is young. But, what this all means, is that any tree that’s growing within a horse pasture should be safe to eat. Invasive tree roots can be very destructive. The willow acacia tree is a species of acacia that belongs to the plant family, Fabaceae. Hickory is more lively than Acacia. Is there anything I could do to encourage better growth. Cat-claw acacia should not be confused with other plants that carry a similar name. Today I noticed the bark near the base of the tree in my yard is starting to separate from the trunk, so I took a knife and peeled back a small portion of the bark, and see that the tree looks totally dry underneath. Sweet acacia is also sold under the names of Acacia smallii and Acacia minuta. It is a low-growing tree that can grow up to twenty-five feet tall, but rarely does in our area. When we take into consideration all of the variability, it is easy to see why the scientists in charge of names are still trying to get it all figured out. Could part of the problem be that it lost a fairly large branch to a wind storm last summer? Willow acacias often exhibit a weeping growth habit, and they have an attractive gray bark, which is often visible beneath the canopy. Fruit: A brown seed pod, usually over 3" long, containing edible seeds. These trees grow fast and upright to about 30 feet high. Saplings have a good chance of being aggressively pruned by horses--to the point where you’ll be left with nothing but a ragged stick. Get a thriving garden despite unforgiving conditions with these tough, unthirsty, sun-loving beauties, Ferguson Bath, Kitchen & Lighting Gallery, Problem Solving With the Pros: Rustic Simplicity in a Country Garden, Solve 3 Common Landscape Problems — With More Plants, Great Design Plant: Paint the Summer Landscape With Desert Willow, The Weepers and the Creepers: 10 Intriguing Trees for Your Garden, Great Design Plant: Lively Fountain Grass Thrives Just About Anywhere, 7 Great Trees for Summer Shade and Fall Color, 10 Top Plants Native to the Desert Southwest. Its leaves are not browning or falling off, its just not full like the other one. It likes full sun and is drought tolerant once it is established. The many varieties of acacia provide lots of excellent choices in the landscape. A medium-sized tree, most specimens will stand between 20 and 40 feet tall. I am not a professional and cannot speak to the pros and cons of acacia from first hand experience, but on the Janka hardness scale (which is the standard way of measuring the hardness of different woods) it ranks higher (harder) than either white or red oak. Second and fourth Wednesday of the month! Treatment involves pruning infected branches as well as continual clean up and disposal of damaged leaves. Bloom: Any time during the year, especially late winter or spring. I planted over 100 of these trees in golf courses. Flowers: White to yellow-white puffballs, fragrant. This blight is a fungal infection that attacks newly developing areas of the tree. Blocked drains and lifted paving may also be a problem. These include prostrate acacia, A. redolens; willow acacia, A. salicina; and shoestring acacia, A. stenophylla. Two acacia with thorns that are native to Arizona include the whitethorn, Acacia constricta, and cat-claw acacia, Acacia greggii. Success! Virginians receiving random seeds that may have come from China. Do you have problems with the heat and find you need to water mid day? Some have long, nasty thorns and some do not. It is called willow basically for its weeping appearance. If you're in the middle of an acacia invasion, you should know that cutting them down isn't enough to kill them. We have to ask ourselves, “Just what is in a name, anyway?” From a practical viewpoint, we are not so much interested in the name of plant as much as we want to know that it will perform the landscape job that we need it to do. Willow Acacia (Acacia salicina) Acacia Tree – If you’re looking for a tree that’ll grow quickly, the Acacia might be for you. This slideshow explains why you should avoid these trees in your yard. 3. You have permission to edit this article. However, if any of the tree's branches are overhanging Into your property, it is within your rights to cut these branches off, even if your neighbour has told you that he doesn’t want you to do so. There are many other problems that affect weeping willow trees. My willow acacia, planted 2 years ago, has done so well and is a handsome tree, perfect for my backyard. Before trimming Willow Acacia (Tempe, AZ) After trimming ( crown thin, reduce from bottle tree and elevate canopy) Before trimming Willow Acacia (Tempe, AZ) After trimming (Crown thin and elevate canopy) Before trimming Willow Acacia (Paradise Valley, AZ) Howard trimming the tree After trimming (Crown thin, elevate canopy, shape and balance… Are you familiar with the acacias? Leaf retention: Evergreen. Will it live where I need it to grow? The shoestring acacia, A. stenophylla, is named from the twelve-inch long slender leaves that remind some of shoestrings. This semi-weeping acacia tree grows 25 feet high and up to 15 feet wide with long, slender, blue-green, willow-like foliage and small, creamy puffball flowers in the spring. Problems with Invasive Tree Roots. The sweet acacia (Acacia smalii), with its slender, fern-like leaves and vibrant, aromatic flowers, is quite common in Arizona. The tree is good for shade and is quite hardy in our area. The new name for sweet acacia is Vachellia farnesiana. Generally, horse owners don’t plant trees in pastures for this reason. The Willow Acacia tree is low-maintenance and easy to grow, in fact, it thrives in our local climate! Almost all died, I would estimate over 10,000 (our company has removed over 500 so far). Since they are in the legume family, they create their own nitrogen supplies by entering into a mutually beneficial relationship with Rhizobium bacteria which extract free nitrogen from the air and turn it into nitrate, the form of nitrogen most commonly used by plants for growth and development. In the last few weeks, some of its leaves are turning yellow to brown and finally dropping. We have several native to Arizona that are often used for landscaping purposes here locally. Willow scab causes leaf-and-branch drop. come from Australia and thrive in the warm climates of U.S. Department of Agriculture plant hardiness zones 9 … It experiences few problems in our area. Willow Acacia brings charming movement to your garden with its grey-green foliage that elegantly flows in the breeze, and with the fluttering butterflies who frequent the fragrant puffball flowers nearly year-round. The willow acacia, A. salicina, will grow up to forty feet tall and spreads to about twenty feet at full size. Acacia are beautiful flowering trees that can enhance the aesthetic of any home or garden. Until the new names for these plants start showing up in references and in general discussion, I would suggest that we just keep using the old acacia designation so that we do not get confused. Let’s learn more about common trees that have invasive root systems and planting precautions for invasive trees. Its lovely....but then again I like an exciting looking floor. The Willow Acacia IS a wonderful tree with proper watering and if sheltered from the wind and freezes. Invasive tree roots are a common problem for homeowners and in commercial settings. I'm a fan of all 3. They are both on a drip twice a week for 2 and a half hrs. In the spring, the plant produces yellow puffball-shaped flowers that have a pleasant aroma. Leaves: Leaf-like stalks, linear, blue- to dark-green. It produces many long, cream-colored flowers in the spring. Scientists for decades have been debating back and forth about the various plants and what they should be called. The tree is good for shade and is quite hardy in our area. The willow acacia, A. salicina, will grow up to forty feet tall and spreads to about twenty feet at full size. Acacia is a nice, natural, mid-tone wood with variations from plank to plank. In urban areas willow tree … Willow acacia is an evergreen tree that grows in a tall, upright single-trunk form. Added to all of that is their varying structure. One of the reasons that they are so perplexing is the great variety in their origins and in their structure. Trees that have invasive root systems invade pipes because they contain the three essential elements to sustain life: air, moisture and nutrients. I wonder if this is too much for a 2 year old tree... Acacia or Walnut for Engineered hardwood flooring. To cope with dry conditions, the roots are known to span large areas in the search for moisture. Most acacia plants will do very well under Pinal County conditions. Like all flowering trees, however, acacia diseases — powdery mildew, stem cankers, and other conditions— may threaten your acacia trees. Mature Size: 30-40' high and 15-20' wide. Hickory has the most amount of movement/variation and with the lightest appearance. Not only that, but they come from all corners of the earth. The Disadvantages of an Acacia Plant. Most trees growing near buildings cause no damage. It reaches 20 to 40 feet in height at maturity, spans 15 to 20 feet in width and contains no thorns. Some trees to consider near pools are Acacia aneura (Mulga), Acacia stenophylla (Shoestring Acacia), Dalbergia sissoo (Rosewood) or Pittosporum phillyraeoides (Willow Pittosporum). Although acacia trees are not native to Arizona, they do well in the state's desert environment and are not invasive. Will it show colorful flowers? Scientific: Acacia salicina Common: weeping acacia, Australian willow Family: Fabaceae (Leguminosae) Origin: Eastern Australia Pronounciation: A-KAY-sha sal-a-SEE-na Hardiness zones: Sunset 8, 9, 13-24 USDA 9-11. We were sad to lose ours; both were beautiful. It requires little water and encounters few problems in the desert. They can tolerate a broad range of poor soils and gets bonus points for high wind and frost tolerance. It is important to know, however, that sooner or later, we will have to come to grips with the new names because the debate about plant relationships will not go away. Even though we may not have all of the answers as to why there is so much variety among the many acacias, one thing we do know. Receive a link to the newest Casa Grande Dispatch e-edition in your inbox each Tuesday, Thursday and Saturday! What did you decide and are you happy with it? Can you post photos of each of the four walls? As its name implies, prostrate acacia is one that is rather low growing in its nature. It does not require supplemental fertilizer. But in some cases, subsidence and structural damage can be linked to tree roots. Daily headlines delivered directly to your inbox Monday - Friday! Another common acacia with thorns that is planted a lot locally is the sweet acacia, A. farnesiana. Willow scab fungus wi… Civano’s selection of this tree, ‘Doris D.’ will tolerate colder temperatures than … Rick Gibson is an agricultural extension agent and the director of the Cooperative Extension in Pinal County. Water established Willow acacia trees sparingly— every three to four weeks in summer and every other month in the winter. The tree has caused a lot of problems from drain blockage to rotten deck not to mention safety on our side of the fence. Height Type Color Bloom Acacia subperosa Weeping Acacia 20’-30’ Evergreen N.A. The thornless types are more commonly used where human interface may be likely. Also, it is a low water use tree so that once established will have little to moderate water requirements. After the February record cold-snap, *ALL* the Willow Acacia trees in my neighborhood (several hundred) dropped their leaves and dried up. What could be causing this? Acacia salicina, Willow Acacia. Any thoughts? In the landscape, most people wisely decide to plant those with thorns in out-of-the-way places where the casual wanderer will not come in contact with the thorns. A. You don’t say where the problem lies here in terms of the potential damage it may cause to your property. So, exit door to outside is opposite? Some grow into tall trees and some grow prostrate to the ground. Acacia is a sophisticated floor with lovely grain. Though this tree is called willow acacia, it is actually not a true willow. If you’re looking for trees for your home, don’t plant these. Form. This is one of the plants with a new name. Is overwatering a possibility? Some problems can be fixed, some problems can be avoided, while some have no other solution other than the removal of the tree. These trees are bright with … The fungus remains in the plant debris littering the tree base and presents the problem of continued infection. It can be expected to grow generally to two feet in the air but loves to spread out over the surface of the ground.

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