Quercus polymorpha. Never heard of Mexican white oak or its aliases, Monterrey oak and netleaf white oak? This hardy species, as many Texas gardeners can attest, is extremely drought-tolerant. Suzanne Young’s Mexican white oak grew from a small switch to about 20 feet high in eight years. Mexican Blue Oak, Blue Oak Quercus oblongifolia . It can adapt to a variety of soil textures, but prefers deep, moist, well-drained sites. All pictures are contributed by our community. We love visitors! Monterrey oak), lacey oak and canby oak. Both trees are related, from the White Oak family, so much so that another common name for Quercus polymorpha is "Mexican Live Oak" and also "Mexican White Oak." Thorough and conclusive research has not yet been done to determine how susceptible Mexican white oak is to this disease, according to Texas A&M professor of plant pathology and microbiology Dr. David Appel. Many of us with a predominance of live oaks in our yards are realizing that a greater diversity of trees is highly desirable in the face of the continuing spread of “oak wilt,” which mostly attacks live oak and red oak. Want to receive email updates about what's new at Native Plant Society of Texas? Quercus polymorpha, commonly named Mexican White Oak or Monterrey Oak, is a semi-evergreen medium sized tree which can grow to around 40 feet. All in all, a Monterrey is leafless for just 2 to 8 weeks, depending on the climate in which it is planted. Pat yourself on the back. Mexican white oak is readily available in local nurseries under the name “ Monterrey oak.” That name supposedly was trademarked by Lone Star Growers of San Antonio, according to Howard Garrett in his book “Texas Trees.”. Mexican White Oak. Chinkapin oaks perform well in alkaline soils. How about adding one of these fast-growing giants to your landscape soon? HEIGHT: 40 to 60 feet SPREAD: 30 to 40 feet FINAL SPACING: 20 to 30 feet This makes this tree a good choice for the north side of a house for winter wind protection. Fast-growing trees tend to be “trash trees” — plants that for any number of reasons aren’t particularly desirable to have in your landscape.Mexican white oak is an exception to that rule.This tall treasure grows to 40 feet — and it gets there quickly. Young trees retain a pyramidal to oval habit with a pale gray, scaly ridged central trunk. This website and all content Copyright © 2008 - 2021 Native Plant Society of Texas. We occasionally link to goods offered by vendors to help the reader find relevant products. We’ve noticed that tiny seedlings’ leaves are more serrated and tend to smooth out as the tree matures. Since trunks can be six feet in diameter leave plenty of room for this tree in the landscape. The trunk flares out at the base lifting sidewalks and curbing if planted in tree lawns less than eight feet wide. Mexican white oak prefers neutral to alkaline soil pH, and can adapt to many soil types including sandy loam and well-drained clay soils. This species naturally ranges from Guatemala all the way north through Mexico and to one small stand discovered in southwest Texas in 1992. In fact, the “polymorpha” part of this plant’s scientific name refers to the fact that different specimens can have different leaf shapes. More About this Tree. As can be attested to by any Longhorn who’s studied for a final exam in the exceptional shade provided by the tree’s expansive boughs, there are ample reasons to love this species, even if you don’t bleed burnt orange. We are a non-profit organization supported by grants, donations and member dues. They pressed some specimens and sent the information off to an oak expert, who then identified these few trees as the northernmost population of Q. polymorpha.”  This is the only known spot in Texas or the U.S. where this species of oak grows naturally. Home; About Us; Menu; Weekly Specials; Directions If this tree sounds like a dream come true, it really is. Oak, Mexican White. “In the early 1990s the Texas Nature Conservancy was surveying some land along the Devil’s River near Dolan Falls in Val Verde County when they discovered a very small isolated box canyon with deep silty gravel deposits supporting several gnarled, spreading oaks that looked somewhat like evergreen post oaks. One such species is the Mexican White Oak, also known as the Monterrey Oak (Quercus polymorpha). It gets about 40 feet tall, and is a great choice for a larger landscape space. GARDENER'S PATH® IS A REGISTERED TRADEMARK OF ASK THE EXPERTS LLC. They usually turn red or brown in autumn, but depending on climate, site, and individual tree genetics, some trees are nearly always red, or even purple in autumn. Another option is to look for a seed-swap website. Tree Size: Medium. Had you heard of this tree species? Mexican white oak has rough bark, oblong leaves 3-5 inches long, and medium-size acorns. The trees may also be plagued on occasion by powdery mildew, but they are generally able to overcome that problem on their own, without human intervention. 15g – $85 30g – $225 45g – $495 100g – $950 They asked Benny Simpson to identify them. The leaves on a Monterrey Oak are 4 – 5 inches long with smooth edges and the surface has a very leathery texture. Monterrey oak is typically a very healthy tree. Let’s run through the top 5 reasons this burly beauty is a no-brainer for landscapes that will accommodate it. Now that we’ve got you fully captivated by this tree and you’re heading out the door, keys in hand, to drive to the nearest garden center, we must ask you to pause. However, according to the well-regarded specialist in tree disease biology, epidemiology, and control, “I am willing to assume, based on host biology, that Monterrey oaks are still more resistant and a better alternative than any of the red oaks when planting in a high-risk area for oak wilt infections.”. Mexican White Oak. I am worried that my Mexican White Oak might be dying. According to Dr. Appel, oak wilt has indeed been confirmed in these trees occasionally over the past 30 years. We may earn small commissions if items are purchased. It can be used in both urban and … The bark of a white oak … This medium-sized white oak was established as native to Texas in 1992. Mexican white oak or “Monterrey oak” (Quercus polymorpha) is a medium to large semi-evergreen tree that does well in the Hill Country. To Gretchen, nothing is more rewarding than a quick dash to the garden to pluck herbs to season the evening meal. Common Name: Mexican White Oak. 10 ft tall Mexican White Oak tree from Home Depot back in March/2011 – It had an orange tag on it that stated that i came from a nursery in Ben Wheeler,TX. White Oak Pests. He went to take a look with John Mac Carpenter, and they were stumped as well. Younger Monterrey Oak trees have a narrow and upright habit and as Monterrey Oaks mature their canopies start to spread and become more rounded. I purchased a 10-gal, approx. Like the chinkapin and Monterey oak, it is a white oak and therefore not going to get oak wilt. Here is more about what we do. We were lucky enough to visit that site on the Devil’s River a couple of Octobers ago as guests of Texas Nature Conservancy’s Bill Carr. The Mexican sycamore. ... Bur oak leaves (Howard Garrett / Special Contributor) Some Texas gardeners have seen spring oak worms snacking on the foliage, but the damage is minimal and usually doesn’t require breaking out the diatomaceous earth. Fast-growing trees tend to be “trash trees” — plants that for any number of reasons aren’t particularly desirable to have in your landscape. Apparently it is cold-tolerant in this area, but the small trees in our yard show leaf damage in very cold weather. This oak can be fairly fast growing in Hill Country yards. It is more heat and drought tolerant than its American cousin, which is susceptible to bacterial leaf scorch that causes canopy die back. Deciding which native species to focus on can be overwhelming. Ordinarily, oak wilt does not affect white oaks, Leaves and acorns of Mexican white oak (photo by Suzanne Young). A larger spreading oak which is native from northern Mexico into Val Verde County, … Thin soil and extreme drought may limit the tree’s ability to achieve maximum height, says Skip Richter, a county extension agent with Texas A&M Agrilife Extension Service. The white oak prefers full sun, but has a moderate tolerance to partial shade. The leaves of this oak tree are four to five inches long with smooth or serrated edges of varying degrees. If you want to plant an impressive looking oak tree, the bur oak will fit the bill. Some of these links may be affiliate in nature, meaning we earn small commissions if items are purchased. Slow to moderate growth to 5060 feet., rarely taller, with equal or greater spread. It’s only recently become a go-to tree for gardeners in the South, and its distribution — and popularity — is slowly spreading. The red fall color is fairly reliable year to year and is outstanding amon… It is increasingly the oak of choice for local landscaping. Mature trees produce bushels of 1-inch acorns that any Monterrey oak owner would be thrilled to get rid of. Members of the subgenus Erythrobalanus are particularly at risk of succumbing to this disease.
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