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If the leaves on St. Augustine grass begin to show a slight curling, it is a sign they probably have received too much water. It is also a hardy grass, which makes it ideal for hotter climates. After two weeks, soak the lawn in up to half an inch daily. If the soil remains warmer than 60 degrees all year, the grass will stay green. This is the maximum amount of time you should water at one time. The factors determining how quickly run-off occurs are the type of soil and the application rate of the sprinkler system. St. Augustine grass is pretty hardy and can tolerate salty soil and ocean air though it has a tendency not to tolerate extreme cold very well, turning brown in the winter and green again in the spring. The timing of preemergence herbicide application will vary greatly in Texas due to the onset of soil-warming temperatures required for weed germination. Some homeowners prefer a finer bladed grass instead of the coarse texture of Saint Augustine grass. Continue the fertilizer program begun in the spring, applying 3 /4 to 11 /2 pounds of nitrogen per 1,000 square feet every 8 to 10 weeks. Mowing:Mow the lawn slightly lower than the regular summer mowing height. Because once we get beyond those few inches - we're right back to the cause of the problem, which is the same clay or silt based soil which is still causing exactly the same problem. To prevent yellowing caused by iron chlorosis, apply liquid or granular iron fertilizer throughout the growing season. At that time, apply a low nitrogen, highpotassium fertilizer. St. Augustinegrass lawns should experience no detrimental insect activity during the winter. Poor Nutrition. When this is the case, a matted depression will be left by your footprints. St. Augustinegrass is very sensitive and may be injured by some herbicides, such as 2,4-D. Read the label carefully before applying any herbicide to ensure that it is the right product for the weeds you have and that you do not injure the turf. Our first approach to curing water logging is to core the lawn and soil. For the worst affected Saint Augustine lawns and soils, wetting agents may often prove a futile exercise if used on their own and without proper soil repair being undertaken at the same time. Wetting Agents are applied to a lawn in the same manner as fertilizers. Now for diseases, Augustine has a lot of disease/ pest and maintenance issues, but the most common are Grubs, Chinch bugs, Fungus and Thatch. The water should not pool on top of the sod or run off of it. (See L-1766, “Chinch Bugs in St. Augustine Lawns,” and L-1131, “White Grubs in Texas Turfgrass,” available from Texas Cooperative Extension at http://tcebookstore.org. This may eventually contribute to eutrophication of streams and lakes. The best mowing height for St. Augustine is 2.5” – 4”. Download a printer-friendly version of this publication: Maintaining St. Augustinegrass Lawns (pdf), View more Gardening & Landscaping information ». If the grass is extremely short, too much energy will be put into growing new blades of grass and not enough energy will be put into growing the root system. When fall temperatures drop with the first frost or when water fails during a dry spell in July, your st. Augustine grass will naturally turn brown. St. Augustine grass is a common choice for lawns because of its low maintenance and quick growing cycle. Plant St. Augustine grass during summer. Do not apply water faster than the soil can absorb it. It does not tolerate waterlogged soils or extended periods of cold weather. Real repair for water logged soils can only ever be achieved by changing the profile of the soil from one which retains water to one which disperses water more freely, and the best way to achieve this is with the use of lawn aeration, and addition of coarse sand. Follow the same recommendations as for March through May. Set out five or six open-top cans randomly around the lawn (tuna or cat food cans work best). Run-off from watering a lawn can waste a significant amount of water, which is costly and a poor use of a limited natural resource. This is a process which is done by the use of a lawn coring machine, which can either be hired, or a contractor can be brought in to do the job for us. The best way to bring it back is to start watering it about 3 times a week. Hello. Continue watering until the EZ Patch™ is completely saturated and no more water is being absorbed which may take several minutes. It also requires nitrogen-rich soil which is important to keep in mind when choosing a fertilizer. As a result of this, the Saint Augustine lawn can become constantly water logged, which in turn will make the turf soft and weak and easily damaged from normal wear and tear conditions, the lawn will be far more susceptible to moss, bare patches, diseases, weeds and pests, and will always be unsightly from the resulting recurring damage. Watering St. Augustine Lawns Disadvantages of St Augustine grass. Herbicides may damage the lawn if you apply them when the temperature is higher than 90 ºF. When the leaf blades wilt, turn a blue-gray color or when footprints remain visible after walking in the grass, the lawn is in need of irrigation. Water logging in Saint Augustine turf is a soil drainage issue, so repairing soil drainage will be the primary focus of this article to fix this problem and try to bring our Saint Augustine lawn back to full health. Postemergent weed control is most effective if you apply the herbicide when the weeds are still very small. High soil phosphorus levels may lead to its surface runoff in periods of excess rainfall or irrigation. In the first few weeks after putting down St. Augustine grass, your lawn will require a strict watering schedule of several light waterings per day. Routinely check for these pests and treat as necessary. Turn on the sprinklers or irrigation system for 30 minutes. These plugs will need to be removed, either by the use of a rotary mower to catch them and pick them up, or by raking them up and disposing of them. The probe will push through wet soil easily, but it is more difficult to push through dry soil. St. Augustine grass is medium to dark green and coarse grass, additionally it has a low, dense growth habit. What really counts for this grass is the soil’s pH. First, the lawn owner must judge for themselves whether the combination of lawn coring, coarse sand replacement and wetting agents will work for their own lawn environment. Do not cheat to water your grass, if you cannot water honestly on the days and times allowed and get your sod to grow, you need to remove some grass not use more water. If the grass does not have enough leaf blades left for photosynthesis the grass will die. St. Augustine Maintenance and Care. St. Augustine grass (Stenotaphrum secundatum) is a coarse, dense, fast-growing grass suitable in warm, humid climates. Wetting agents will in no way be a cure to heavy water logged lawns, but should instead be considered as an aid in the repair of the problem in addition to lawn aeration, and as an aid to help water circulate more freely in the soil for as long as they remain active. Weakened turf needs even more water. Despite the benefits of St. Augustine grass, many homeowners opt to have their lawn maintained by a professional so they don’t have to … If St. Augustine grass is not maintained properly it will experience problems. Herbicides containing 2,4-D should be used with care, as St. Augustinegrass is sensitive to this herbicide. 4. So what's the solution for these real problem soil types? You should, therefore, establish your lawn in mid-summer when conditions are great for the growth and spread of this grass species all over your lawn. This helps the grass settle into the ground, but avoid using too much water. Therefore, it may be desirable to apply preemergent herbicides for annual winter weeds when the average soil temperature drops to 70 ºF. Apply postemergent herbicides as needed. This practice will likely damage the lawn by it will recover if fertilized and watered properly. Apply no more than 1 /2 pound of nitrogen per 1,000 square feet. To maintain St. Augustine lawns with a dense green look proper, watering, and mowing, are always essential factors to be considered. New-style irrigation controllers allow you to water several times a day, so you can program them to prevent run-off. Follow the label directions for the rate of application. Example: If the sprinklers sprayed 1 /2 inch of water in 30 minutes and wet the soil to a depth of 3 inches, you would need to apply 1 inch of water to wet the soil to a depth of 6 inches. Irrigation may be needed to supplement natural rainfall. If the thatch layer is more than 3 /4 inch thick, it can be removed gradually by mowing the lawn with a vertical mower or scalping the lawn (cutting with a rotary mower at its lowest setting) in April or May when the grass is healthy and actively growing. Extended periods of hot and dry weather, St. Augustine grass might start to die. During the summer months, healthy St. Augustine can only go 1 to 5 days between irrigation events, based on the heat index (Myers & Horn, 1969). We advize the use of a contractor due to the weight and difficulty of the machine for new users to safely operate. Texas A&M Veterinary Medical Diagnostics Laboratory, Texas A&M College of Agrculture and Life Sciences, Blackland Income Growth Virtual Conference, Ranchers Agricultural Leasing Workshop: Online course, Connecting Agriculture and Health – From the Ground Up: online, https://www.youtube.com/watch?v=Wc8xY2YuOfM. 3. To prevent run-off: The best form of weed control is a healthy, dense lawn. 5 cans = 0.5 inch of water in 30 minutes. Fertilize overseeded lawns once in December and again in February with 1 /2 pound of nitrogen per 1,000 square feet, using a nitrogen-only fertilizer such as ammonium sulfate (21-0-0). These climatic conditions usually occur in spring about the time redbud and dogwood trees begin to bloom. If the lawn has been overseeded, water based on the earlier discussed principle. As it would be impossible for us to even consider individual soil analysis for the reader's home lawn in this article. Use a hose or sprinklers to water the sod. To control summer annual grassy weeds (e.g. Covering many different lawn care topics relating to most aspects of lawn care practices for St Augustine grass lawns. If you water adequately to bring it back to life, you may need to do a total of about 1 ½ inches of … Using a ruler, measure the depth of water caught in each individual can, and record the depths. I water the grass weekly to keep St Augustine green and alive. This height reduction should be done just before the lawn greens up, which usually occurs during late April or early May. St. Augustine grass is usually dormant during the colder winter and fall seasons. It grows well in nearly all soil types and tolerates shade, heat, salt and is drought tolerant. Iron is also a vital nutrient for St Augustine grass. This may mean applying these products by late February in Houston or by late March in Dallas. Apart from sometimes being a little thirstier, there are no real other differences in watering a St Augustine lawn than for any other lawn variety. When St Augustine grass is going off brown after deprived of water for a long period of time; it is dying. Many homeowners will confuse this rot with take-all root rot because of the yellow coloring of the leaves. Be aware that fertilizers containing iron may stain concrete, brick or stone surfaces. Your county Extension agent can give you an estimate of that date in your area. High levels of soil phosphorus can also lead to deficiencies in iron and zinc. Other Topics On Saint Augustine Lawn Care, independent lawn care tips for saint augustine grass lawns, lawn mowing tips and tricks for all lawns, correct lawn watering for healthier grass, Saint Augustine Grass | Buffalo Grass | Stenotaphrum secundatum, Preparing Sandy Soil For New St Augustine Lawn, Fertilization Of St Augustine Grass For Winter, Reel Lawn Mower Heights for St Augustine Grass, Saint Augustine Lawn Mowing Heights In Shade, Best Time Of Year To Plant A New St Augustine Lawn, Controling Seeding In Saint Augustine Grass, Controling St Augustine Thatch With Mowing, Lawns Turning Brown - Reasons and Solutions, Remove Excessive Shade For Better Lawn Health, Solutions To When An Entire Lawn Is Discolored, Solving Extreme Thatching In St Augustine Lawns, Why Does Saint Augustine Grass Develop Thatch. The idea is that as long the St. Augustine is thriving from adequate irrigation, Bermuda cannot step in to occupy the space. Continue fertilizing as recommended until 4 to 6 weeks before the first expected frost. Use enough water that the soil is damp but not soaked since St. Augustine grass and similar tropical varieties don’t need a ton of liquid. Also, Bermuda likes fertilizers more than St. Augustine, so I make … ... Place a rain gauge in your yard and use it to help you water enough and not … Weed Management. Continue this cycle until the appropriate amount of water has been applied to wet the soil to a depth of 6 inches. If water begins running into the streets or gutters, note how long it took before run-off occurred. Use a core-aerating machine when the grass is actively growing. Listed are lawn care tips on watering and mowing which will be helpful, and can save money in the long run. If possible, use a mower with a bagger to collect the clippings and remove the dead material left from winter dor… Use a garden spade or a soil probe to find out how deeply the soil was wet during the 30- minute period. When appropriately cared for, St. Augustine Grass is dense enough to handle normal amounts of foot traffic and shield against weeds. St Augustine grass will go dormant when the soil temperatures fall below 55 degrees. As for the type of care St. Augustine grass needs, this warm-season grass likes moisture and should be watered deeply. When you do water, wet the soil to a depth of 6 inches. Our work makes a difference, in the lives of Texans and on the economy. crabgrass and goosegrass), apply preemergent herbicides (which control weeds as the seeds germinate). Chinch bugs and white grubs are the two most serious insect pests in St. Augustinegrass lawns. Pests in St. Augustinegrass lawns amounts of foot traffic and shield against weeds first 3 then... 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