It is my goal to have just one type of grass, preferably the St. Augustine since it appears to be the one covering the most area.I couldn’t mow it for the last 3 weeks and now I have these sort of sticks everywhere that appear to come from the St. Augustine stolons. Join our mailing list to receive the latest updates from HGIC. Approximate application times are mid-February in the coastal and central areas and mid-March in the piedmont/mountain areas. Early Summer (May): Apply ½ to 1 pound of actual nitrogen per 1,000 square feet in early May after the lawn fully greens up. St. Augustinegrass is a wide-bladed, spreading, warm-season turfgrass that is adapted to the warmer regions of the southeastern United States.Joey Williamson, ©2018 HGIC, Clemson Extension. Sometimes St. Augustine grass will produce these seed heads. Fertilization: Do not apply nitrogen at this time. St Augustine will produce seedheads but the seeds don’t grow. Insecticide applications targeted at the mole crickets in their smaller nymph stage are the most effective controls, even if damage has not yet occurred. Do not apply herbicides unless grass and weeds are actively growing and are not suffering from drought or heat stress; therefore, water the lawn thoroughly the day before application. However, the seed performed poorly and is no longer available. During periods of environmental stress due to high temperatures or a lack of rainfall, raise the mowing height ½ to 1 inch until the stress is eliminated. 85-sq ft … Results may vary. At this point, a fungicide application will be needed. About 4~6 inches tall, thick to the touch, with scales like seed pockets. It combines grass seed, fertilizer, and a soil improver into an easy-to-use product that’s applied using a spreader. Overseed a Thin Lawn. St. Augustine grass is commonly planted in the Gulf Coast areas of the United States. See HGIC 1652, Soil Testing for instructions on how to properly submit a soil sample. Circle C Farms, Inc. 7.8. There was a time when St Augustine grass seed was being made available in limited quanities. For more information, refer to HGIC 1204, Lawn Renovation. This provides a more optimal environment for the St. Augustine grass to grow allowing patches to fill in … St. Augustine grass (Stenotaphrum secundatum), also known as buffalo turf in Australia and buffalo grass in South Africa, is a warm-season lawn grass that is popular for cultivation in tropical and subtropical regions. If grubs (the white larvae of beetles, such as Japanese beetles) have been a problem in previous years, monitor them by cutting a square foot piece of sod on three sides and peeling it back. Trent C. Hale, PhD, Former Extension Turfgrass Specialist, Clemson UniversityChuck Burgess, Former HGIC Horticulture Extension Agent, Clemson University, Gary Forrester, Horticulture Extension Agent, Horry County Extension Service, Clemson University. For more information on thatch removal, see HGIC 2360, Controlling Thatch In Lawns. If either of these insects was a problem early in the season, apply an insecticide during mid-July to control the younger immature insects. Use a lawn mower with a bag attached or hand rake to collect and properly dispose of the turf material pulled up. Not true. When the turf begins to dry, it will appear to have a bluish hue. St. Augustine grass spreads rapidly and aggressively via above-ground stolons, or runners. For more information on disease control, please see HGIC 2150, Brown Patch & Large Patch Diseases of Lawns. For more information on turfgrass watering, see fact sheet HGIC 1225, Conservative Turfgrass Irrigation. Houston Grass South distributes St. Augustine, Bermuda and Zoysia grass sod grown on our family farm in Bay City, TX, where we’ve been growing top-quality grass for more than 30 years. Our lawn has some now and we like it a lot, but we’re having trouble finding seeds. The plant is very finicky about producing viable seed….. and for that reason, seed companies have just about given up on it. If a soil test indicates a higher soil pH, sulfur can be applied to lower it. You cannot let it dry … The principal variety, Floratam, is virtually 100% sterile, doesn’t even produce any seed, while dwarf varieties such as Seville produce abundant seed which is 70% or more viable. Wait to irrigate again until the lawn shows moisture stress. If your cool-season lawn seems thin, fall is a great time to thicken it by overseeding before winter arrives. Therefore, it is important to monitor temperatures and apply the needed management practices based on that year’s climate. It’s normally a very aggressive spreader – in fact, most of the time I hear questions about how to stop it! Take a look at the video below to see the process of how farmers sprig warm season grasses using slabs of sod. Research has shown that an early season insecticide application after the turfgrass has greened-up will reduce the late season activity. I think I’ll use the bag in the mower this time, just in case. If possible, use a mower with a bagger to collect the clippings and remove the dead material left from winter dormancy… Producing a yearly maintenance calendar for managing turfgrass consistently year after year can be difficult in a state with such a diverse climate as South Carolina. Heavy populations can be reduced with appropriately timed insecticide treatments during this period. Be sure to use a sharpened mower blade. “People get stingy with the water, especially when people are clamoring about a water shortage or drought time, and they’ll cut back on the water. Once nighttime temperatures fall below 70 °F, raise the mower cutting height ½ to 1 inch to allow more leaf surface. Gray leaf spot may occur on St. Augustinegrass during the heat of summer when the turf remains damp for extended periods, usually during rainy periods or on newly laid sod being kept wet. The mower setting should be between 2 to 2½ inches high. Aerification: Core aeration is the process of punching small holes into the turf and soil to alleviate compaction, allowing air to get to the root system. I have observed and counted large numbers of emerged St. Augustinegrass seedlings following sod harvest of some varieties (but not Floratam), and the numbers of seedlings are proportional to the seed production per unit area. For more information on aerification, see HGIC 1226, Turfgrass Cultivation and HGIC, 1200 Aerating Lawns. Scotts EZ Patch Lawn Repair For St. Augustine Lawns - 3.75 lb., Ready-to-use Mulch, and Fertilizer Lawn Repair, Repairs St. Augustinegrass, Does Not Contain Grass Seeds… Dormancy conserves the grass’s energy and prevents damage due to … St. Augustine Grass Bermuda Grass; It requires at least 5 hours of direct sunlight to grow and thrive really well. However, this is not always the case. Lawns in shady areas perform better when mowed at 3 to 4 inches high. Sharpen the mower blade monthly or as needed during the growing season. Selective herbicides may be applied in the winter for control of annual bluegrass and other winter annual weeds. Ready-to-use mulch and fertilizer. However, fertilizers containing nitrogen should not be applied during this period. Clay soils, however, will hold moisture for a longer period of time. For more information on weed control, see HGIC 2310, Managing Weeds in Warm Season Lawns. Winter desiccation can be a problem during dry winters. This height reduction should be done just before the lawn greens up, which usually occurs during late April or early May. This is best done before the first frost. “Keep it wet,” Orr says. The date of initial turf green-up can be quite variable. That said, other weeds do produce seeds that grow, and it can be hard to tell the difference from a mower. Chinch bugs are fairly easy to control using general insecticides, but applications need to be made before the population has risen to a level where damage is occurring. 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. Apply sulfur only when the air temperatures are below 75°F. Fertilizer Calculations: To determine the amount of granular fertilizer needed to apply ½ pound of actual nitrogen per 1,000 square feet, divide 50 by the first number on the fertilizer bag. However, as the soil temperatures start to climb, the yellowing should slowly go away. Chinch bugs can be very destructive to St. Augustinegrass. This turfgrass maintenance calendar may be used on turf grown throughout the state; however, management practices may need to be adjusted based on the year’s climate and the region where the turf is grown. St Augustine will produce seedheads but the seeds don’t grow. Contact the local County Extension Office or the Clemson Home & Garden Information Center for identification and control of weeds in the lawn. Each pest problem has its own management strategy and is usually handled with cultural and chemical controls. An application of a soluble iron product, such as iron sulfate or a commercial chelated iron, in between fertilizer applications, will enhance the green color without encouraging growth. Another method is to walk across the lawn late in the evening. St. Augustinegrass is sensitive to certain herbicides, such as 2,4-D, not only during spring green-up, but also during hot summer temperatures. The general rule to turfgrass irrigation is to water “deeply and infrequently”. A long-term approach is needed to correct either cause, but an iron product can be added to quickly enhance turf color between the spring and summer fertilizer applications. Spraying with liquid iron (ferrous sulfate) at 2 ounces in 3 to 5 gallons of water per 1,000 square feet or applying a chelated iron product will help to enhance turf color. In the meantime, mow and bag the weeds. Mole crickets, chinch bugs, spittlebugs, grubs, ground pearls, and nematodes can cause considerable damage. Fertilization: Fertilization of St. Augustinegrass should be based on soil test results, and this is a good time to test soil. It will turn brown with fall freezes and will be slow to green in the spring. Mowing: Continue to mow St. Augustinegrass at the normal mowing height until the weather starts to cool in the fall. If this document didn’t answer your questions, please contact HGIC at email@example.com or 1-888-656-9988. A dull mower blade will shred the turfgrass foliage.Gary Forrester, ©2018, Horticulture Extension Agent, Clemson University. The best way to install a St. Augustine grass lawn is to purchase grass sod from a high-quality sod dealer like Houston Grass South. For more information, refer to HGIC 1207, Watering Lawns and HGIC 1225, Conservative Turfgrass Irrigation. Mowing:Mow the lawn slightly lower than the regular summer mowing height. Thatch Removal: If a thatch layer becomes a problem, use a dethatcher or vertical mower to remove it. St. Augustine grass seed has not traditionally been easy to establish but new methods have made seeding a viable option. They are not all that common. It is the least cold tolerant of the warm-season turfgrasses. Pre-emergent herbicides create a barrier that keep weed seeds from germinating. In certain situations where large patch has been prevalent yearly, a preventative fungicide application may be needed starting in early October to stay ahead of the disease. Palmetto St. Augustine Grass Plugs / Box of 72. AI Score. This is not the best time to apply an insecticide because of the cool soil temperatures and reduced insect activity. Alternatively, the lawn can be hand raked to remove the excessive dead leaf material from the lawn surface. There are horticultural books that say St. Augustinegrass is propagated vegetatively because it produces no seed. You do not want to have Sapphire grass as your lawn. However, if a pre-emergent herbicide was applied late February to mid-March, postpone any cultivation practices that will disturb the soil until just before the next pre-emergent herbicide application date. An infestation may cause the turf to die, which will need to be replaced or allowed to grow back in. If the soil stays saturated all winter, this can cause many other problems. For more information, please see HGIC 2150, Brown Patch & Large Patch Diseases of Lawns. If the turf stays wet, circular yellow to brown areas may begin to develop and slowly grow in size. A chinch bug is a small black insect with silver wings that sucks plant juices from the stem. St. Augustinegrass (Stenotaphrum secundatum), sometimes referred to as Charleston grass, is a coarse-textured, spreading grass that is popular throughout warmer regions of the Southern United States. St. Augustine doesn’t need a lot of water, it just needs it consistently. As with all pest control, proper weed identification is essential for best control options. Irrigation: Water the lawn to prevent drought stress. How to Plant St. Augustine Grass For more information on mole cricket or chinch bug control, see HGIC 2155, Mole Cricket Management in Turfgrass or HGIC 2487, Chinch Bugs. It is not unusual for St. Augustinegrass to green up and be burnt back several times during the late winter or early spring due to late season frosts. This will allow the turf to become acclimated by the time the first frost occurs. Copyright © 2020 Clemson UniversityClemson Cooperative Extension | 103 Barre Hall Clemson, SC 29634864-986-4310 | Contact UsHGIC@clemson.edu, Centipedegrass Yearly Maintenance Program, College of Agriculture, Forestry and Life Sciences. Apply 1 pound of potash (K2O) per 1,000 square feet, 4 to 6 weeks before the first expected frost, using 1.6 pounds of muriate of potash (0-0-60) or 2 pounds of potassium sulfate (0-0-50) per 1000 square feet. Disease Control: For disease control, especially large patch, it is extremely important to treat with fungicides during the fall months. Disease Control: The most common diseases that affect St. Augustinegrass during the growing season are large patch (formerly known as brown patch) and gray leaf spot. Potassium is needed late in the growing season as the grass goes into dormancy for added disease protection and winter hardiness. A soil probe can be used to monitor soil moisture. Monitor the winter rainfall on a regular basis, and apply water to the turf if no measurable rain occurs over a 3 to 4 week period. The mower blade needs to be sharpened on a regular basis – usually about once a month or at least before the growing season starts. In 3 months, recheck the soil pH and see what change was made. Once a lawn is prepared, St. Augustine grass seed is planted at a rate of 1/3 to ½ pound per 1,000 square feet in early spring or late summer. Not so fast, tallylassie, St. Augustinegrass seeds have high germination, over 70% in my experience. Fertilizing with a micronutrient fertilizer, such as manganese sulfate, can alleviate manganese deficiencies. Absorbs 6X its weight in water. However, with cooler nights and shorter day lengths, control can be quite difficult because of slow turf recovery during this time. One way is to observe the lawn daily. Unfortunately, between the front and back lawn I probably have 2 to 4 different types of turf. Three-way herbicides typically contain 2,4-D. St. Augustinegrass is sensitive to 2,4-D, so follow label directions for mixing and use. Renovation: Replant large bare areas in May using sod, plugs, or sprigs (5 bushels per 1,000 square feet). These combinations are found either as a seed mixture, or a seed blend. For more information on weed control, see HGIC 2310, Managing Weeds in Warm-Season Lawns. In most southern climates, St. Augustine grass is the coveted turf of choice, while Bermuda grass is an invasive nuisance. To manage a lawn, it is important to know the soil texture in the top foot of soil. As for the type of care St. Augustine grass needs, this warm-season grass likes moisture and should be watered deeply. Seed Mixture: contains more than one type of grass; for example, Kentucky Bluegrass and Perennial Ryegrass For more information on mowing, refer to HGIC 1205, Mowing Lawns. This will give the number of pounds of product to apply to 1000 square feet of turf. Bermuda grass requires full sunlight all day long to grow optimally. Turf weakened by disease in fall will be slow to recover in the spring; therefore, fungicide applications are needed to control disease before the grass goes dormant. i guess they don’t have st. augustine in new jersey…. Irrigation: In the absence of rainfall, continue to water to prevent drought stress. St. Augustine grass is a type of warm season grass that is popularly grown in the southern regions of the United States. St. Augustinegrass will grow best at a pH of 6 to 6.5. The higher rate may be chosen for those growing St. Augustinegrass on sandy soils with the lower rate for those lawns growing on clay soils. Starting a lawn with St. Augustine grass seed requires the same preparation as any other lawn seed. Overall, proper water management, fertilization, mowing height, and thatch control are essential to curtail large patch and gray leaf spot problems. St. Augustine grass is usually dormant during the colder winter and fall seasons. Ever. However, in the piedmont and midlands of SC where the turf is growing on clay soils, St. Augustinegrass is typically fertilized only twice during the growing season (early May and early July). If an insect problem occurs, it is important to positively identify the problem and select the appropriate insecticide to apply. For best results, use a dethatcher with a 2- or 3-inch blade spacing set at a ¼-inch depth after the turf has fully greened-up. As temperatures start to warm in late spring, monitor for mole cricket and chinch bug activity. Need help…live in DFW sodded Palmetto S/A last year looked great…over seeded Winter Rye…mow yard looks awful. If you’re planning on establishing a St. Augustine lawn, but have had issues with Bermuda in the past, you may be in for a challenge. Apply an insecticide to reduce the population and reduce further turf damage. The rate will depend on soil type. St. Augustine grass goes dormant when soil temperatures dip down to 55℉ (12℃). For more information on weed control, see HGIC 2310, Managing Weeds in Warm Season Lawns. Last frost dates and first frost dates can vary by several weeks from the coastal areas of South Carolina to the foothills of the Upstate. Most areas of South Carolina receive enough rainfall during the winter to avoid winter desiccation of lawns. Since it is fueled by moisture, it is important to maintain a rather dry condition in the lawn by employing proper watering practices, as well as providing adequate soil drainage. The irrigation system should only be run when the entire lawn is dry. St. Augustine grass varieties do not produce a harvest-able seed. The added moisture in the soil will help keep the growing points of the turf warmer, preventing crown death. Spray sufficiently to wet the foliage, but do not spray excessively. See HGIC 1211, St. Augustinegrass for additional information on care and cultivar selection. Things To Do When Saint Augustine Lawns Begin Seeding. For more information on white grub management, see HGIC 2156, White Grub Management in Turfgrass. Weed Control: To control crabgrass, goosegrass, sandspurs, and other summer annual weeds, apply a pre-emergent herbicide early in the year. This fertilizer may be especially important if the soils are sandy. Not so fast, tallylassie, St. Augustinegrass seeds have high germination, over 70% in my experience. Mole crickets and grub eggs will usually hatch mid-summer. Monitor the turf on a regular basis during the growing season, especially during hot, dry periods. seed – posted 12 May 2005 12:18. Follow all directions, precautions and restrictions that are listed. Large patch is a fungal disease that is active during warm, humid spring and fall weather. Sod farms cultivate new St. Augustine sod fields by planting small plantlets (plugs/sprigs) of St. Augustinegrass, which grow into a full field of sod in 8–12 months depending on the latitude of the sod farm. Mid-summer (June through July): Fertilize with ½ to 1 pound of actual nitrogen per 1,000 square feet, depending on soil type, using a high potassium fertilizer such as 15-0-15. This is especially important if warm, bright days preceed days forecasted to be in the low 20’s or colder. Late Summer (August): Fertilize with ½ to 1 pound of actual nitrogen per 1,000 square feet, depending on soil type, before August 15 using a high potassium fertilizer such as 15-0-15. Just be aware that these lawn care practices will not stop a Saint Augustine lawn from seeding altogether, nor suddenly, but they will help in reducing the length of time that the lawn does seed. Lawn Breeders Growing Saint Augustine From Seed Some turf breeders do indeed breed and grow new St Augustine grasses from seed during their development and breeding cycle, but it’s very rare. St. Augustine is a warm-season grass that grows well in full sun and moist soil in warm, coastal areas. If new turfgrass growth is encouraged by fertilization during the early spring, and it is followed by a late frost, this can result in significant damage to the lawn. If the bag is picking up soil, mainly sand, when the lawn is mowed, then the blade may need to be sharpened more often than once a month. With warm temperatures through September and the possibility of excessive rainfall that may occur during that period, diseases can increase rapidly. Thanks for the fast response. Ever. I know of no way to prevent them. If the grass in the footprints does not bounce back, then irrigate the lawn the next morning. 3 steps to success: prep, apply, water. Selective, post-emergent herbicides can be applied as necessary for control of chickweed, henbit, and other cool-season broadleaf weeds. Summer weeds, such as spurge and annual lespedeza can be managed by using a post-emergent herbicide for broadleaf weeds sometimes referred to as a 3-way mix. Find St. Augustine grass & grass seed at Lowe's today. In the coastal and more Southern regions of South Carolina, this generally will occur sometime during April, but further inland, this may be as late as mid-May. That said, other weeds do produce seeds that grow, and it can be hard to tell the difference from a mower. Apply 5 lbs of pelletized sulfur per 1000 square feet of turf. This will help to correct problems associated with poor infiltration and drainage. All recommendations are for South Carolina conditions and may not apply to other areas. Please see HGIC 2151, Gray Leaf Spot on St. Augustinegrass. I contacted Dr. Richard Duble, Turfgrass Specialist and Professor for A&M and he writes: "seedstalks are not that uncommon in the summer. If the turf at the edge of the dying area shows a smoky brown, rotted appearance, it will be necessary to apply a fungicide treatment. COVID-19 Extension Updates and Resources ... More Information », Factsheet | HGIC 1218 | Published: Aug 31, 2018 | Print | Download (PDF). Less sunlight will retard its growth due to reduced photosynthesis. If a weed problem begins and the grass has begun to green with warmer temperatures, wait until the grass has fully greened-up before applying a post-emergent herbicide. Q: Please tell me where I can buy St. Augustine grass seeds. If more than six grubs are found under the sod piece, apply a lawn insecticide labeled for grub control according to label directions. The addition of phosphorous, the middle number in the fertilizer analysis, will need to be determined by a soil test. That's the reason you will not find seeds available. Sod farms loves pushing this because incentives matter; if you buy… Follow label directions for use of any herbicide and use with caution during these times. St. Augustinegrass is sensitive to certain herbicides, such as 2,4-D, so follow label directions for reduced mixing rates. Scotts® Turf Builder® Thick’R Lawn™ is specially designed to turn weak, thin grass into a thicker, greener lawn. Apply a post-emergent herbicide as needed to control existing winter weeds. A second application is needed approximately 8 to 10 weeks after the initial application to give season long control of annual warm-season weeds. Weed Control: A selective, annual grass and/or broadleaf weed control pre-emergent herbicide that is labeled for use on St. Augustinegrass and applied during late winter and spring will reduce many weeds the following summer. St. Augustine grass can be planted in a variety of soil types with a pH range of 5.0 to 8.5. If the damage is minimal, monitor the activity and wait before applying an insecticide. The addition of phosphorous, the middle number in the fertilizer analysis, should only be applied if recommended by a soil test. Contact the local County Extension Office, or the Home & Garden Information Center for positive identification and proper management strategies. What makes commercial seed production unprofitable are several factors, such as the difficulty of processing the seeds (the spikelets are embedded in sockets in a corky rachis), their slow “take” in competitive situations, and the fact that any seed produced from a vegetative planting will be all inbred seed, with depressed vigor. Need help: Weed control for ornamental perennial peanut (rhizomes type)? Do not use a power rake with a 1-inch blade spacing, as severe turf injury may result. Later, the center of the circle may start to re-green. St. Augustinegrass lawns should receive 2 to 4 pounds of actual nitrogen per growing season, per 1000 square feet of turf. Be careful not to set the mower too low, as it may scalp the lawn. It grows well in hot, salty climates and can cope with drought. My lawn is in the panhandle of Florida. As a warm-season grass, suitable for hot, humid climates, St. Augustine grass goes dormant during cold temperatures. In heavily infested turf, the rounded areas may grow together and no longer appear circular. Clemson University Cooperative Extension Service offers its programs to people of all ages, regardless of race, color, gender, religion, national origin, disability, political beliefs, sexual orientation, gender identity, marital or family status and is an equal opportunity employer. In my case the sections with them are very dense. Be careful not to set the mower too low, as it may scalp the lawn. A soil test will help determine if a fertilizer containing phosphorous is required. Insect Control: There are various insects and related pests that may infest St. Augustinegrass during the summer months. It may take several years to make a large pH change. 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