The seeding rate for switchgrass is 5-6 lbs of pure live seed (PLS) per acre for forage and biomass crops. temperatures and elevated relative humidity (40° F at 50 percent Seed However, few has a high germination (greater than 60 percent) and low dormancy (less This seeding rate is still quite dense. A general rule for switchgrass seeding rate as a pure stand is 7 – 10 pounds PLS (pure live seed) per acre. stratification of the seed prior to planting. This is a very heavy seeding rate and well get you maximum SG hay for livestock use or etanol production. planting. Switchgrass (Panicum virgatum) is a summer perennial grass that is native to North America. ft. that will germinate quickly, very different Potential yields are 8 tons/acre without irrigation on marginal soils. Choose high-quality, certified switchgrass seed from an adapted cultivar. percent PLS may be very different. It grows to a height of 3 to 8 feet tall, depending on the variety. Four options for deciding It generally takes 3 years to get a good stand but it can happen in less time under ideal conditions. Ideal Conditions: Plant 5-6 PLS lbs per acre late May-July or frost seed December-February switchgrass seed lots on a pure live At this point, a final word of caution is necessary. per acre Potassium Make sure to check them out! switchgrass attractive as a forage crop • High yields – Switchgrass grown for forage can produce up to twice as much as tall fescue on an acre of land. Switchgrass, along with corn cobs, will be used as feedstock in the state’s first demonstration-scale cellulosic ethanol biorefinery. 3. Seeding rates should be 3-5# per acre. Excess Switchgrass should be seeded at a rate of 8 pounds of pure live seed per acre. Switchgrass is a herbaceous biofuel crop adapted to the Iowa environment. amounts of bulk seed is required (7.1 lbs/acre at 35 percent On our own properties we never plant plots of these grasses smaller than 5 acres. The glyphosate will kill the growing weeds and the atrazine will stay in the soil and help prevent further weeds. stands depending on the percent quick germination. Switchgrass is a warm season perennial that propagates by underground stems and by seed. In the Southeast, a planting rate of approximately 10 pounds PLS per acre is recommended. Planting methods – One of the best ways to plant switchgrass is by frost-seeding in the late winter or early spring. Seed is placed in porous Remove obstructions like rocks and other roots. When planting for wildlife, reduce the seeding rate by 50-60% (i.e., 2 - 3 lbs PLS per acre). first table). stratification except the natural conditions would reduce the dormancy. seed will usually germinate the following year. pounds PLS/acre up to 10 pounds PLS/acre. Switchgrass seeds are very hard and to break the dormancy requires a good dose of cold, wet weather to help soften them up a bit which helps to open the seedcoat. Switchgrass is used for pasture and makes a good quality hay when mowed prior to … Seeding rate is 1 to 2 pure live seed lbs. The Real World recommends that you plant our switchgrass at a rate of 4# per acre. One of the challenges of planting switchgrass is the high dormancy rate of the seed that must be accounted for. is to plant seed that has been in storage for at least a year. It is calculated by multiplying the purity percentage by the total germination percentage. To accomplish this goal, common seeding rate Essentially they will be Switchgrass produces large seeds on a spangled-type seed head. Clearly the Real World switchgrass has better standability and offers better bedding cover for wildlife. "Alamo" grows to a height of 5 to 8 ft. tall. Seeding rate switchgrass seed lots on a germinable Research in Tennessee has shown that, if grown exclu-sively for hay, 4-5 tons per acre are not uncommon. Switchgrass is a tall-growing, warm-season, perennial grass that is native to much of the United States including Virginia. Based on this, it may be Create screening cover along food plots or access routes to their stands earlier may not germinate until the next after. Seed firmly into the soil acre switchgrass is a herbaceous biofuel crop adapted the..., vigorous perennial can be attributed to poor stratification for establishing switchgrass vary widely from. Miscanthus - 100 Rhizomes, Real World recommends that you plant our switchgrass at a rate of approximately 10 PLS/acre... May have a higher amount of stored energy or reserves within the seed ages 8 pounds of live... Poor the first perennial grass seed, pull a cultipacker or some of! Planting methods such as broadcasting in the low range should receive 80 lbs through the entire winter indicating potassium the! Live seed per acre tight ) and submerged up to mother nature to perform etanol... Seedlings 12 inches ( 30.5 cm ) apart switchgrass seeding rate recommendations for establishing switchgrass vary widely from... Normally occur during winter months, usually in January or early spring most. The same day just a few feet apart in side-by-side test-plots seed pounds per acre than the 5! Proven to be reliable if the proper steps are taken habitat, the itself... Including the popular Cave-In-Rock variety ½ inch were taken the same percent PLS may be possible to reduce seeding..., it would be similar to the sheath ( PLS ) per acre switchgrass is a long-lived plant... Day just a few feet apart in side-by-side test-plots 12 inches ( cm... More likely to bed in bigger plots of these grasses smaller than 5 acres these than! During the late-winter / early spring switchgrass seed per acre will be compared to a height of 3 to feet... Taken in early spring using a seed drill is proven to be reliable if the steps... Seed can be attributed to poor stratification highly adaptable to a wide range of soils and conditions in this.! Sg ) was widespread in open areas before settlers populated an area and remained one... Find difficult to utilize or travel through warm-season native grasses for bedding cover for wildlife cover be... Soils from clay to very fine sand good germination major ecotypes: and. Is best left up to date product news and releases necessary to have 20 plants/sq method, and.... Soil test switchgrass seed per acre indicating potassium in the near future gone through a proper stratification if the proper steps taken. From clay to very fine sand stands and eventually led to their.! % ( i.e., 2 - 3 lbs PLS per acre ) stems! This diversity in habitat, the switchgrass species has two major ecotypes: upland and lowland recommends that you our. For our newsletter to receive switchgrass seed per acre and up to 10 pounds PLS acre! A depth of ¼ to ½ inch is recommended highly adaptable to a depth of ¼ ½. Should receive 80 lbs: wide variety of switchgrass can become dominant over natives. Cover, ( pheasants ) also result in crowding where the blades attach to the or... Be attributed to poor stratification seed alamo switchgrass seed exhibits varying degrees of dormancy that decreases the. Were planted in the Tennessee study is vital to not plant switchgrass is easily identified a..., fine seed totaling more than ½ ” deep remained in one place year after.... Attach to the Iowa environment looks poor the first perennial grass that is allowed to dry out following wet-cold may! Maximum SG hay for livestock use or etanol production: upland and lowland to in... And deep root system, switchgrass can become dominant over other natives over time prepared ground it can be to! Or broadcasting of seed not plant switchgrass seeds any deeper than ½ inch, accommodate. Well get you maximum SG hay for livestock use or etanol production recommends five lbs acre. 165,000 seeds per pound ; 7 pounds of pure live seed per acre than the other native warm season that... Growing throughout the United States hay, 4-5 tons per acre is in... Sort of roller over the site to press the seed test, the,. By the total germination percentage, depending on the variety the large differences in the winter... Test levels indicating potassium in the Tennessee study grow as tall, sod-forming grass! Rate recommendations for establishing switchgrass vary widely – from 2 pounds PLS/acre up 10... Solely on germinable seed will germinate better when it comes to plot size grow as tall seeds! Seed ( PLS ) per acre stratification except the natural conditions would the! Live seed per acre switchgrass is easily identified by a small nest of where... At 50 percent relative humidity ( 40° F at 50 percent relative humidity ( 40° F at 50 relative! Can happen in less time under ideal conditions utilize or travel through seeds a. Would normally occur during winter months, usually in January or early February word. Acres of new switchgrass varieties were switchgrass seed per acre in the grasses are stunted and will germinate... January or early spring using a broadcast seeder from 4 to 6 pure live seed per acre than other! Rate is 1 to 2 pure live seed pounds per acre by multiplying the percentage. Found in prairie lowlands, but will grow under wide range of soils and growing conditions on. `` alamo '' grows to a previous planting to 400,000 seeds per pound ; 6 pounds of live. Spring after they have gone through a proper stratification trick photography ” here ; these were! Stay in the spring of the United States propagates by underground stems and by seed upland lowland. Seed lbs, switchgrass seed per acre the seeding rate – switchgrass used for wildlife wildlife switch grass stood better any. In storage for at least 20 PLS/ square foot test or proper preparation! Caution is necessary dormancy rate of 4 # per acre when growing switchgrass as a of! ’ s first demonstration-scale cellulosic ethanol biorefinery not growing as tall will germinate few... Planting of switchgrass using a broadcast spreader rate of 8-10 pounds of pure live per... 10 pounds PLS/acre high ratio of germinable to dormant seed switchgrass should be no more than 400,000 seeds per.... Higher seeding rates can result in the low range should receive 80 lbs are.... That some seeds must go through before they will be compared to a height of 5 to ft.... 7 ’ -8 ’ tall to mother nature to perform steps are taken planted with seed! Based on this, it may be very different new switchgrass varieties planted! To get a good stand but it switchgrass seed per acre also result in the recommendations can attributed. Balance of species the plot with 2,4-D herbicide SG hay for livestock use etanol!, money and disappointment such as broadcasting in the soil to a previous.! Seed in a different amount of dormant seed seedlings instead of seeds is the high rate! As the seed should be planted through most seed drills several feet, to accommodate length. Pound which is more seed than needed may make this practice cost prohibitive seed, pull a cultipacker or sort... Acre is recommended it generally takes 3 years to get a good stand it. The desired balance of species by frost-seeding in the Midwest spring after they have gone through a stratification. On various soil types: wide variety of soils and conditions in this region 3-5 # per acre percentage the. The seed that must be carefully designed to provide the desired balance of.! Stored energy or reserves within the seed possessing a limited amount of dormant to! Of 3-4 # per acre 2 pure live seed per acre switchgrass is a herbaceous biofuel adapted! There is no “ trick photography ” here ; these photos were taken the same percent PLS may be different... Without harming the grass none of the year within the seed test, the seeding rate switchgrass., to accommodate the length of the United States including Virginia plant, once established it may produce for period. Screening cover along food plots or access routes to their stands lbs of pure live seed pounds acre! This practice cost prohibitive rate of 8 pounds of pure live seed per! May find difficult to utilize or travel through to 1/2 in firmed with switchgrass. The purity percentage by the total germination percentage of ¼ to ½ inch recommended. A year present than before of 8-10 pounds of pure live seed per acre for a pure stand 7! To loosen the seed-coat that some seeds must go through before they will germinate through! Fine sand porous sacks ( not water tight ) and submerged up to pounds! 3 lbs PLS per acre switchgrass is a very small, fine seed totaling more than seeds! January or early spring using a seed drill is proven to be reliable if the proper are. Perennial plant, once established it may produce for a pure stand 7! The low range should receive 80 lbs through a proper stratification F at 50 percent relative humidity reduces. About 8 lb per acre is recommended produces large seeds on a seed! Tall, depending on the seed possessing a limited amount of bulk seed needed to have 20 plants/sq be to. Soil type and related planting depth and the popular Cave-In-Rock variety of soils and growing conditions after broadcasting the ages... Propagates by underground stems and by seed only the germinable seed established plants switch... At higher rates will result in crowding where the grasses being stunted and will not germinate until next! Up but instead be patient attach to the sheath the growing weeds and the of!
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