Throughout the Phoenix metro area, you will see sissoo trees widely used in parks and other green spaces. This is a common reason why trees fail to thrive. If close enough these trees can erode the ground around your swimming pool and seek and destroy underground plumbing. © Copyright 2020 Hearst Communications, Inc. Sunset Western Garden Book; Kathleen Norris Brenzel, et. Olive If roots have already invaded your drain pipes or septic system, you have a problem. Red dogwood (Cornus florida var. Trident Maple. A fast growing tree, it can grow 2-3 feet a year and reach heights of 30 feet. Non-Invasive Root Systems Image Credit: Dan DiSorbo/Demand Media The popularity that Italian cypress (Cupressus sempervirens) enjoys throughout the Mediterranean translates to similar climates in the United States. Some homeowners complain about the many pods and leaves that drop off the tree, but its roots pose the biggest problem. Crabapple (Zones 3-8): A short, flowering tree that matures at about 20 feet tall. The leaves turn to a beautiful orange and red in the fall. trees where SMALL trees would have been better. It maintains its shape best when it is pruned at the top. Male holly plants provide the same ornamental value as female hollies, but don’t bear fruit. Scanning some online gardening and landscaping forums, it became apparent that this tree has a polarized following. They are valuable as a quick source of pulpwood, energy and lumber, but they don’t make good landscape trees. Some Arizona homeowners appreciate the tree for its first-rate shade or curse it for its destructive and invasive thirsty root system. These oaks are low maintenance and easily adapt to a variety of soil conditions. It thrives in full sun in zone 9. In addition, landscapers can plant noninvasive species closer to buildings or roads with less fear of damage from the tree’s root system. Choose a tree removal company that you can trust. Maple trees, ash trees and cottonwoods are trees you should not pick because they are known for growing invasive, lateral trees roots. Velvet Mesquites are winter deciduous. It is thornless and provides good shade. The roots of the fruitless olive are considered non-invasive. “Small” trees are ones that normally grow to 20 feet tall or less and/or shrubs that can be pruned to have single or multiple trunks and a raised canopy. There are no statutes in Arizona that address tree encroachments; however, there is “common law” in Arizona and every other state that does. The sweet acacia (Acacia smalii), with its slender, fern-like leaves and vibrant, aromatic flowers, is quite common in Arizona. Shoestring Acacia trees thrive in reflected heat and like to grow in a location that gets plenty of full sun exposure. The root systems of popular cypress trees have distinct characteristics and share some vulnerabilities. The branch structure can be very unique and beautiful. With deep watering, this should not be a problem. This tree does have thorns. Moon Valley Nurseries has a wide selection of desert trees to choose from. The Mastic tree is also known commonly as the Evergreen Pistache. Its new leaves emerge bronze to bright red and turn dark green. A triangle denotes trees which are native to the Sonoran Desert or which are visually compatible with Sonoran Desert landscapes. in journalism from Boston University. The soil gets hot, burns the mulch and leaves gaps around the roots. White mulberry roots have been known to shoot out through yards, cracking pavement and upending landscaping along the way. Trees that have long, lateral roots are bad choices because they harm foundations. 3. This holly thrives in full sun to partial shade and requires moist soil, but tolerates highly acidic to slightly alkaline clay, loam or sand. With a pool, I am ruling out right now. No one wants that in their yard. Choose a tree that does not have an invasive root system. The soil gets hot, burns the mulch and leaves gaps around the roots. The palo verde is the state tree of Arizona and there are two species that are native to the state: the foothill and… New foliage is a reddish color that later matures to a glossy green. There are no statutes in Arizona that address tree encroachments; however, there is “common law” in Arizona and every other state that does. Because it lacks thorns and the roots are not invasive, it can be planted close to … Drought and heat tolerant. The main concern when planting a Southern Live oak is whether or not it has enough room to expand and grow. Save my name, email, and website in this browser for the next time I comment. No one wants that in their yard. Its new leaves emerge copper-colored and mature to green. This tree made its debut in the Phoenix area about 15 years ago and … The Dalbergia sissoo or North Indian rosewood, is not native to the Sonoran Desert. Below are descriptions of small trees from the western US and northern Mexico that grow well in the desert areas of southern Arizona. Put the mulch on top of the soil around the base of a tree. This invasive tree root list includes some of the worst offenders: Hybrid Poplars (Populus sp.) It can grow to heights of 60 feet tall and spread out to 60 feet wide. Can get up to 30 feet wide and 30 feet tall. They are best avoided. There are a variety of resources available regarding specific tree care options in Arizona. It bears tiny white flowers in the spring or fall and small, dry berries that provide food for birds and animals. 2. They bloom from spring to fall and are great for attracting hummingbirds. Common Trees with Invasive Roots. The Arizona Community Tree Council lists sweet acacia as a tree that attracts Arizona wildlife. A heat-tolerant species that requires little to moderate watering and partial sun. By nature it's a multi-trunked tree but can be pruned into a single trunk specimen or grown as a small shrub. An excellent choice for a privacy barrier or hedge. This tree grows better on the coast than inland, planted in full sun to partial shade, adapting to a range of soil conditions tolerating drought. The leaves are glossy and rich green. Be sure the tree is not overly messy. Be sure to pick a disease-resistant tree to avoid headaches later! The Arizona Community Tree Council lists sweet acacia as a tree that attracts Arizona wildlife. A fast growing tree, it can grow 2-3 feet a year and reach heights of 30 feet. By nature it's a multi-trunked tree but can be pruned into a single trunk specimen or grown as a small shrub. Mastics are ideal for planting around patios and pool areas. Consider trees such as Platanus wrightii (Arizona Sycamore), Platanus mexicana (Mexican Sycamore) and Salix gooddingii (Goodding's Willow) and Salix exigua (Coyote Willow). 1. Talk about aggressive roots. The bronze loquat (Eriobotrya deflexa) grows to 15 to 25 feet tall and 10 to 15 feet wide in USDA zones 9 through 10, providing moderate shade. It is incredible how often one hears that palm trees planted near a pool have caused enough damage to warrant removal. They can develop a very interesting structure with multiple thick trunks that are curved and twisted. It is resistant to oak root fungus and is susceptible to leaf miner and scales. Red Push Pistache trees are easy to care for and require little to moderate water. This hybrid species does not produce nuts. Evergreen Shade Tree With Noninvasive Roots & No Droppings. It is best grown in full sun and works well as street tree. Plus, white mulberry trees are known to be messy neighbors, and the species’ male trees emit pollen notorious for triggering allergies. Pines also do well in Arizona. Silk Oak - I think I had one and was told it was an Ash when I moved into my current house. Waterwise trees such as Acacia stenophylla have little to moderate watering needs once established, and we like to feed them with a general-purpose fertilizer before new growth begins in spring. It does not work well around pools because it drops bean pods. Make sure that the tree you are considering does not have an invasive root system, especially if you will be planting it near your house foundation, concrete patio, or septic system. “Majestic Beauty” grows best in full sun and tolerates drought, is not fussy about soil and grows well planted in clay, loam or sand. Despite having flowers, they are low pollen and okay for those with allergies. They will grow in coastal regions and also in areas with hot, dry summers. Don’t plant a tree too deeply. Come shop the best and biggest selections for desert trees from Moon Valley Nursery! It provides moderate to dense shade and bears tiny fragrant flowers in the spring, but little or no fruit. A triangle denotes trees which are native to the Sonoran Desert or which are visually compatible with Sonoran Desert landscapes. Talk about aggressive roots. Tree Care. They grow to be around 8 feet tall with elegant arching branches. Trimming may result in the tree having an unnatural appearance. Evergreen leaves and peeling bark keep this tree attractive all year, with small white flowers blooming in the spring. A slow to medium growing tree that is typically very long-lived. Allow the bell-shaped roots to protrude out of the ground. The sweet acacia (Acacia smalii), with its slender, fern-like leaves and vibrant, aromatic flowers, is quite common in Arizona. Don’t mix mulch with the desert soil. The photo of the tree above was taken four years after it was planted from a 15-gallon container and it rapidly grew even larger – soon, it had to be removed due to its invasive roots. We have the experience you need and the prices you want. This tree is great for shade but needs a lot of room to expand horizontally. Tree Planting – What You Need to Know Before You Grow, Preparing Your Landscape and Trees for the Holidays, Witches’ Broom and Mistletoe, Understanding the Difference. Pygmy Date Palm (Phoenix roebelenii): These dwarf palms grow in both single and multi-trunk varieties, giving you options on the look you want. The Little Leaf Ash has smooth brownish-gray bark and smooth thick leaves. Many taller indigenous trees grow well in the desert such as ash, elm, pistache and oak. This is another good tree for planting around patios and pool areas. Other fruitless olive trees include “Swan Hill," “Seviland," “Little Ollie” and “Skylark.". Your email address will not be published. Seeds can stay on branch for a long time. https://branchingouttree.com/2019/09/18/best-trees-to-plant-in-tucson Desert Willows are deciduous. Although acacia trees are not native to Arizona, they do well in the state's desert environment and are not invasive. The invasive roots can take over a yard after only a few years. – Hybrid poplar trees are bred for fast growth. The bean pods or fruit are messy, so Velvet Mesquites are not a good choice around pools. al. Sissoos grow to a moderate height of 35 to 40 feet but their vigorous root systems can threaten underground irrigation lines, sidewalks, block walls and even lawns. White mulberry roots have been known to shoot out through yards, cracking pavement and upending landscaping along the way. trees where SMALL trees would have been better. Because it lacks fruit, this is a very neat tree that works well around pools and patios. Noninvasive trees have shorter and shallower root systems that do not burrow under foundations, sidewalks and driveways. Trimming may result in the tree having an unnatural appearance. Smooth gray branches and bright green willow like leaves make this tree very aesthetically appealing. Reaches 25 to 40 feet tall and develops a crown that is 25 to 35 ft wide. Ficus Nitilda (sp) - rumor is invasive roots and I have seen them take frost damage in the Phx area. Allow the bell-shaped roots to protrude out of the ground. This is a common reason why trees fail to thrive. Ogata and Eichinger say there are several native, or well-adapted non-native and hybrid species that will provide good shade without a lot of water. Below are descriptions of small trees from the western US and northern Mexico that grow well in the desert areas of southern Arizona. A medium sized tree that is very tolerant of heat and cold. Seeds: Mature on female trees in late summer or early fall. The stunning green trunks and branches stay smooth as they mature. They are very slow growing, but they maintain thick dense foliage year-round. She graduated with a B.S. This species has been considered one of the best trees to plant in Tucson for decades and is common around the downtown area. Palm trees, Fruit trees, Grape vines, berry plants, nut trees and flowering trees. Cal Poly San Luis Obispo Urban Forest Ecosystems Institute: Majestic Beauty Olive, Cal Poly San Luis Obispo Urban Forest Ecosystems Institute: Fraser Photinia, Cal Poly San Luis Obispo Urban Forest Ecosystems Institute: Australian Willow, Friends of the Urban Forest: Australian Willow, Cal Poly San Luis Obispo Urban Forest Ecosystems Institute: Big Bull English Holly, Cal Poly San Luis Obispo Urban Forest Ecosystems Institute: Bronze Loquat, Friends of the Urban Forest: Bronze Loquat. The English holly (Ilex aquifolium “Big Bull”) thrives in USDA zones 7 through 9, reaching 35 to 40 feet tall and 25 feet wide at maturity. It can be grown as a large shrub or a small tree. This hybrid does not produce fruit, but it does bloom with fragrant yellowish-white flowers in the spring. 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