g. Cover the seeds lightly with soil when spread and lightly compact the soil to help ensure germination occurs. Fine Fescue Today we mow Josh's newly seeded Kentucky Bluegrass Lawn. Kentucky bluegrass is considered by many as the ideal lawn grass. It takes longer to germinate; six to 30 days if a wide range of cultivars are considered, 10 to 21 days for most cultivars used on athletic fields. Water preferably in the evening in fine rain (input of 4-5 litres/m2). Skip to the end of the images gallery. Hancock's Kentucky Bluegrass is known for its early spring green-up and remains dark green and dense all season long. 17 reviews. Abstract. , expect 3 to 4 weeks for a complete stand of grass. or ethofumesateor: September and October: For use on established perennial ryegrass or Kentucky bluegrass or when establishing. Sports field construction contracts in cool-season areas often stipulate a 9- to 12-month period between seeding and opening for play. Grass began sprouting on day 5 and the first mowing came on day 28. Some varieties vulnerable to stress damage. The height of the grass should be kept at around 3 inches. Balansa Clover ( Trifolium michelianum Savi) has multiple applications. Safe for home, children and pets. The objectives of this research were to determine the effect of water aeration, seed soaking duration, and water temperature on mean germination time (MGT. Kentucky bluegrass: 7–10 days; Fescue: 7–14 days; Ryegrass: 5–10 days; Zoysia grass: 14–21 days; Buffalo grass: 14–30 days; It’s worth noting that these are just averages, and the germination rate of your grass seed can be affected by other factors, such as weather and soil conditions, which I’ll get into next. x 50 Ft. In this zone, tall fescue can add season-long color to Kentucky bluegrass and perennial ryegrass mixes. Wear Resistance. Rutgers: Kentucky bluegrass germination time varies by variety and by seed lot, among other variables. Even in these water-wise days, a lawn is still a crucial part of many gardens. View. Water in the early morning hours, before 10 a. In areas of adaptation Kentucky bluegrasses will withstand intensive use on. Drought-resistant, highly wear tolerant, and resistant to disease, Bewitched is an exceptionally hardy turfgrass, able to withstand the punishment of heavy use. growing grass from seed in an 8-day time-lapse. - Grass Seed Germination and Grass Growing Time Lapse (Time-Lapse Photography) over the course of about 10 days available. Cool-season grasses, such as Kentucky bluegrass or the fescues, may be seeded any time from midspring to early fall, but late summer is the optimum seeding time in northern Utah. The seed label will list the name of the turfgrass species and cultivars present in the package, seed. Kentucky bluegrass (Poa pratensis L. The grass will send out rhizomes to fill in bare spots giv. However, once established it spreads quickly via its extensive rhizome production. 8lipoa. , pre AND post emergence, use at seeding, selective control of bentgrass, etc. The ability of thatch to decrease light availability is the primary mechanism through which KBG suppressesEveryone yearns for a thick, lush, healthy lawn, but achieving this ideal isn’t always straightforward. Another time to start grass seed is in late winter or early spring. It is a coarser looking plant whose inflorescences consistently have a whorl of two to five small branches at the base. Improved aesthetics: The fine texture of Kentucky bluegrass complements the rapid establishment of perennial ryegrass, resulting in a visually appealing lawn. . Washington as monostands (pure Kentucky bluegrass plantings) and when planted should comprise less than 50% of the total seed mixture. Perennial Ryegrass. has found that seed priming hasWhat I Have Learned About Kentucky Bluegrass the Past Three YearsThe main thing I think I have learned about Kentucky Bluegrass in the Past Three Years is th. The obtained results showed that seed germination of Kentucky bluegrass was highly affected by applied levels of salinity (Table 1). Before 10 a. This is a full guide on growing grass from seeds. Conversely, many dithiopyr treat-ments improved Kentucky bluegrass. This is a visual representation of how fast Kentucky Bluegrass (KBG) can spread over a full two growing seasons. 14 - 30. 26 3. Sow at least 6 weeks before the first frost date of the year. 5 pounds for 10,000 square feet. August 1st – September 15th is a great time frame. Seed coating did have a positive effect on the speed of germination of kentucky bluegrass in a sandy loam soil, but did not improve the speed of germination or percentage emergence in the other soil types. Change water every 12 hours. This means that Kentucky Bluegrass can be used in lawns, and is a good grass to use in parks as an attractive border. Though seed will germinate at a wide variety of temperatures, the optimum temperatures for germination are in the table below. Augustine, and other turfgrasses, germinate in air temperatures above 80 degrees Fahrenheit. Whereas Kentucky bluegrass is a rhizome-forming grass, ryegrass is a bunchgrass, and it has a rather shallow root system. Save. 9. Kentucky bluegrasses reproduce asexually; in scientific terms by a method called apomixes. WeatherAre you thinking about seeding KENTUCKY BLUEGRASS? Before you do, there are a few things you should know. is ideal. Granite Kentucky Bluegrass is out of stock. Mow the yard to a height of 3″ – 3. Granite Kentucky Bluegrass is a dark green, wear tolerant bluegrass with excellent summer stress tolerance. of water. Grass seed germination time. Soil temperature is another critical factor to consider when determining the optimal seeding time. Level: Not Specified. ) seed. Seeding/Planting – Select seed mixes and seeding methods that are well suited to the site and project goals. Bentgrass happens to be one of those grass types already well-established in the Oregon soil seed bank. 8. Application or Use: Lawn, Turf, Golf Courses, Parks & Recreation, Athletic Fields; Germination Time: 14 - 21 days, under optimal conditionsKentucky bluegrass is a popular choice for lawns due to its lush texture and ability to withstand foot traffic. Once properly established, Kentucky bluegrass spreads relatively quickly because of its rhizomes. com or +1 (508) 500-8402. 5/18/2019 Put down seeds in the afternoon 5/27/2019 first sign of. It can be even longer than this in cooler temperatures. Easy to cut and use. Germination for Kentucky bluegrass generally takes two to five weeks, depending on many factors. Kentucky bluegrass (Poa pratensis L. ). Kentucky Bluegrass has a moderate traffic tolerance. 56. Kentucky bluegrass is a cool-season grass that grows best during the fall, winter, and spring months when temperatures are cool. Both ryegrass species are susceptible to heat, cold, leaf spot and brown patch disease. The objectives of this study were to compare the relative WL tolerance of Kentucky bluegrass (Poa pratensis L. Kentucky bluegrass germinates about three times slower than perennial ryegrass. Don’t wait too long to plant the seeds in the fall, however, since they need enough time to germinate before the first frost. It germinates best between soil temperatures of 50F to 65F, or air temperatures of 60F to 75F. Every type of grass has a specific time for germination. Expected time (days) Annual ryegrass. S. 28 kg/ha 10 DAE or at 0. k. It typically takes seven to 10 days for tall fescue to germinate under optimal conditions and 15 to 21 days for Kentucky bluegrass. ). Since Kentucky Bluegrass takes at least 21 days to germinate, it is important to get your seed down early enough to allow for at least 3-4 weeks of growth prior to the ground freezing. I just received my package, am pleased with the seed mix, germination rate, origin of seed, which is per testing label on bag: 26. . 5 cm) in the spring and fall. Warm-season weeds are slower and pose less competition for water and nutrients intended for grass seed germination. After swathing, the bluegrass is dried in the field for a minimum of 10 days before harvest. The best time to apply Scotts EZ Seed – Sun and Shade is during Spring or Fall because seeds germinate fastest when the daytime temperatures fall between 60 and 80 degrees Fahrenheit. Kentucky Bluegrass NTEP 2012-2016 Final Data Highlight - Mean Turfgrass Quality Ratings of Kentucky Bluegrass Cultivars Grown Under Shade At Carbondale, IL TOLL FREE: 800-975-6939 FAX: 541-491-1502 30140 Hwy 99E, PO Box 30, Shedd, OR 97377 Turfgrass Quality and Other Ratings 1-9; 9 = Best NAME. Kentucky 31 Tall Fescue and Bluegrass have different establishment timings based on their seed germination and sod formation. In conclusion, the optimal germination temperature for Kentucky bluegrass seeds ranges from 59°F (15°C) to 86°F (30°C), with the best results typically achieved between 68°F (20°C) and 75°F (24°C). 97% said they value Tenacity for its flexibility to be used at. Generally speaking, grass seed takes 3 to 28 days to germinate. Using the sample label, to calculate the amount of Pure Live Seed of ‘Challenger’ Kentucky bluegrass with purity of 30% and germination rate of 85%: This means that a 100 lb. On average, it takes about 2 to 4 weeks for Kentucky bluegrass seeds to germinate. When Time Is Right, Apply Starter Fertilizer. Kentucky bluegrass required. Forage quality of smooth bromegrass. It’s a low maintenance grass that has grown in popularity a lot. We became known for having “weed free” grass seed and the new ones are no different. 6-8 weeks of growth is even better than 4 weeks of course. It’s durable and bright green, which is perfect for the traditional lawn. Bass (2)~ concluded after a detailed study of the factors affecting germination of Kentucky bluegrass that the stage of maFall is the best time for renovation and seeding of cool-season lawns. My understanding is that it takes 14 - 30 days for KGB to germinate. 15 wood stakes included. Kentucky bluegrass is a turfgrass with a panicle-type seed head. Then seed them with peat moss. Sodding of these grasses also is appropriate at this time. If you've taken the time to get a kentucky bluegrass. So lets just say my lawn was looking pretty ugly for a couple of weeks. Soak the area with 4-6 inches of water immediately after sowing. An-nual bluegrass grows 6 to 8 inches high when left unmowed. BABE Kentucky bluegrass has very good performance versus the fungal diseases dollar spot and summer patch, Use BABE Kentucky bluegrass as a component in your turfgrass mixes to offer an excellent and versatile choice for great looking turf. The germination time for most types of grass seed ranges from 5 to 30 days depending on the variety you plant. ) is 1-3. It grows remarkably well in full sunlight but. Week 1 - 7 The highest quality turf grass for sunny areas is Kentucky Bluegrass (at least 6 hours of direct sun). 100% Kentucky Bluegrass. These can be sowed in chilly temperatures, yet meager expansion and grass malfunction can still occur. Bluegrass and ryegrass do not perform well in the shade, so creeping red fescue is a great addition to this mix for its shade tolerance. Analysis of variance of Kentucky bluegrass grown under the saline conditions at the germination and seedling development stage. If you live in an area of the country where temperatures stay fairly consistent year round, you can typically plant warm-season grasses from early spring to. 13 lbs. Introduction may have been accidental in many regions, but Kentucky bluegrass has also been planted in many areas as forage and for erosion control (Carrier and Bort 1916; Huff 2003; USDA. All the new grass seed mixes/blends are 0% weed seed and 0% other crop. germination by 20% and 30%, respectively (Takabe et al. Show per page. Crabgrass seeds are dormant for a short period of time after they shed from plants. transvaalensis) putting greens (Liu et al. Bentgrass: Bentgrass seeds usually grow in 10-14 days. ) is 1-3 ft (30-91 cm) tall, with yellow-green leaves 1-8” (2. The leaves are smooth and boat-shaped at the apex, while the panicle seed head is. The recommended amount of time quoted is based on ideal conditions. . . winter annuals: cool-season species which germinate in late summer or fall, 2. Mow your lawn to be as short as possible. 1. So after throwing down about 20 pounds of seed over about 6,000 sq ft, I set up my home made redneck above-ground irrigation system, and watered the heck out of it 4 times a day. Though seed will germinate at a wide variety of temperatures, the optimum temperatures for germination are in the table below. For example, if you’re trying to plant fescue grass, expect a germination period of seven to 14 days. Planting Kentucky Bluegrass Seeds. However, some grass seeds can germinate at lower temperatures depending on the species and variety of grass seed used. To plant the bluegrass with Sod, follow the same steps initially as followed in the seeding process, which include: Eliminating any existing weeds or grass from the lawn. lodged from the head. A full-blown stand of micro clover requires between 2 and 5 pounds of seed per 1000 square feet of lawn. Remember, germination occurs underground and what you see above ground is well after that. Individual performance of varieties within each classification may vary widely and require comparative regional test results to determine the best performing variety. Because of its slow germination and fragile seedlings, Kentucky bluegrass will establish best when planted during periods of light traffic. Stop after you have gone over the area once. Show per page. In this blog post, we will. By contrast, Kentucky bluegrass seeds take 21 days or more to sprout into. Canada bluegrass (Poa compressa L. The lawn’s total square feet should be divided by 1,000. Kentucky Bluegrass Classification Limousine (Aggressive) Recommended Other These charts are for general observation only. Kentucky Bluegrass 14-30 Days. HD Sports 2. , KBG) and perennial ryegrass (Lolium perenne L. Spring planting can be done as early as the ground can be worked, but. Then a tall fescue variety known as Kentucky 31 made the leap from pasture to turf — and became an important part of Pennington Seed's history in the process. In my experience, Kentucky bluegrass (KBG) seed germination takes up to 2-4 weeks under favorable conditions. The best time to plant Kentucky Bluegrass would be during the cooler seasons of early fall and spring. Then add that number to the amount of seed needed per square foot. ) and contain lower proportions of perennial ryegrass (PRG; Lolium perenne L. For this reason, the best time to plant it is around September through November in the fall, when the summer heat is no longer present. In the boxes are 11 different varieties of grass seed, those showing growth here are Perennial Rye Grass and Turf Type Tall Fescues,. Most shoots produced in the spring remain vegetative. Kentucky bluegrass has been grown for pedigreed seed on 150-300 acres in Saskatchewan in recent years (1994-1996) accounting for 1-2% of the pedigreed grass seed acreage in the province. You want to wait until the soil temperature falls to 50 degrees to 65 degrees Fahrenheit to get the best germination from your fescue seeds. 0 inches. Thrive between temps 80-95 ⁰F. Annual grasses are represented by the major grain crops (corn, sorghums, wheat, rye, barley, oats), and by many weedy types which infest fields and pastures. Kentucky bluegrass is slower to germinate than other cool-season grasses, so budget your time accordingly. Taller is better, especially during hot summer months or in partial shade. The grass was developing extremely fast and strong with lots of. germination by 20% and 30%, respectively (Takabe et al. Many factors influence germination speed. 9. To avoid smothering seedlings, partially remove mulch after germination occurs and 2–3 inch roots develop. When planting grass seed in Massachusetts, you'll want to put the seeds in the ground between August 15 and September 15. Seed germination and grass establishment are slow, and weeds may become a problem if an area is seeded in late spring or early summer. The Kentucky bluegrass roots can push deeper in conjunction with. 8 In. Annual bluegrass (Poa annua) and rough bluegrass (Poa trivialis) are common weeds on golf courses, but are now becoming a problem on highly maintained lawns and athletic fields. per 1,000 ft 2 (from Table 1) theMidnight, like all bluegrass’s, requires 2 - 3 weeks for complete germination. Planting Depth: 1/4-1/2 inch. For example, perennial ryegrass is known to be able to germinate in cool temperatures as low as 35°F (1. HGT® features the very best of Barenbrug's Kentucky bluegrass varieties. When considering the establishment of a new lawn, the first factor that should be considered is which grass species (such as Kentucky bluegrass, perennial ryegrass, fine fescue, or tall fescue) to plant. PRG germinates relatively quickly and develops rapidly compared to KBG (Proctor et al. Kentucky bluegrass (Poa pratensis L. If you want a grass variety that is economical and easy to take. Common warm-season grasses and their germination times are: Bermuda grass: 10 to 30 days to germinate. Exited to see how the rest of the project goes!#gras. However, the current embryological information is fragmentary for Kentucky bluegrass (Poa pratensis L. cool-season species seeded in the early spring, and. Add organic matter to the soil, if it is clayey. Water early in the morning when possible so that it has time to soak into the ground before evaporating in hot. However, the Kentucky bluegrasses are very slow to establish a cover and contribute very little to an overseeding mixture for the first several months. Perennial Ryegrass is a popular cool-season turf choice in cooler climates worldwide. Then, spread the Kentucky bluegrass seed evenly, using a broadcast spreader for larger areas. Ft. In the humid regions of the Midwest United States, KBG is a desirable species, but slow germination makes it difficult to establish compared with PRG. ) cultivars to the control (i. Kentucky. Remain patient and follow Kentucky Bluegrass water requirements until it begins to take root. Remember to take only ⅓ of the blade off per mow, and maintain a height of 2-4 inches. The effects of temperature and time of soaking and of aeration of the solution were studied. Instead, spend your time and money on Kentucky bluegrass for its aggressiveness. Bluegrass and ryegrass do not perform well in the shade, so creeping red fescue is a great addition to this mix for its shade tolerance. Kentucky Bluegrass. germination of planted seeds. Ten pounds of this product will cove 325 feet and 20 pounds covers 445 square feet. Product Information. Kentucky bluegrass (KBG) thatch reduces light availability and daily temperature fluctuations (Bosy and Reader, 1995; Gasch et al. of gibberellic acid per 10 gal. In steep areas, erosion control matting with nylon netting or jute can also be applied over seeded areas and left in place after germination. Kentucky bluegrass prefers full sun, but will tolerate some shade. 97% said Tenacity delivers consistently good results for their customers. Perennial ryegrass also needs to be fertilized periodically. Your Blue Heat KBG seed will need plenty of time to germinate because it takes anywhere from 14-30 days to germinate. Begin mowing as soon as the grass reaches 3 to 31⁄2 inchestucky bluegrass cultivars. Late summer to early autumn is generally regarded as the optimal planting window for Kentucky bluegrass. of pure ‘Challenger’ Kentucky bluegrass, but that only 25. We cut the lawn fir. The seeds are covered with a thin la. In Northern areas, this is in mid-August to mid-September. Priming Kentucky bluegrass seed, with initial hydration followed by air drying, in creased germination speed and seedling fresh mass (Pill et al. . Summary. ft. Seeds will germinate A Laboratory research at Jacklin Seed Co. Zoysia grass: 14 to 21 days to germinate. I took a picture roughly each day, so you can assume each picture is 1 day apart. Just a quick Kentucky Bluegrass Seed Update! We have pretty good germination at Josh's place at 18 days. BEST LOW-MAINTENANCE: Pennington Smart Seed Bermuda Grass and. In my experience, big seeded common or forage type varieties like Kenblue, which I believe is used in Scotts Pure Premium (check the label), as a rule, germinate in about half the time (10 days) as a typical elite type bluegrass. On the other side, Kentucky bluegrass takes about more than three weeks which is less than ryegrass. Welcome to our Kentucky 31 tall fescue review and guide. To prevent weed germination, mow frequently at the tallest recommended mowing height. “non-spreading”) cool-season grass that germinates quickly after seeding. Germination and seedling vigor tests were conducted using a seed incubator set at. ”. Planting too early or too late in the season will lengthen the time it takes for the. View. When it is time to sow the seeds, mow the lawn slightly. Plant Other Grasses with Kentucky Bluegrass. If the soil is too cold, germination may be slow or unsuccessful. Only effective in reducing populations of the annual subspecies of annual bluegrass. Safe for home, children and pets. Ryegrass is also used for erosion. It can be even longer in cooler temperatures. As a cover crop, FIXatioN can be used as weed control as well as fixing nitrogen to reduce input costs. Planting Kentucky Bluegrass. I'm into my third and soon to be fourth KBG renovation and I want to make it absolutely clear that you do not need to worry about it coming in kind of thin. 5′′ – 3′′ inches (6 – 7. Each small plant can produce about 100 seeds in as few as eight weeks. Planting. However, methods to improve germination of Kentucky bluegrass remain limited, andThis blog post is an expansion of a post in 2011 with more information and sources. This residential hydroseeding project was started on August 23, 2016 in the upper Midwest. Step 9. 5 to 10 days. Tall fescue: This grass type germinates in 10 to 14 days. Planting Kentucky Bluegrass Seeds is an important step in creating a lush, healthy lawn. Kentucky bluegrass is known to take 14 to 21 days for their germination which takes more time than most other cool-season grasses and it is comparable time compared to germination for warm-season grasses such as hulled bermudagrass (Cynodon dactylon), centipedegrass (Eremochloa ophiuroides) and zoysiagrass (Zoysia japonica) which take. The two-week germination period for fescue seeds is a faster growth rate than other grasses. Wait too long and cool weather will reduce tall fescue (or Kentucky bluegrass) germination. Bahiagrass - warm-season, USDA zones 7 to 11, plant in spring/summer. Based on literature (Guesdon et al. Kentucky Bluegrass Growth under Saline, Waterlogging, and Saline-waterlogging Conditions during the Germination and Seedling Growth Stage Kevin Rue and Qi Zhang* Department of Plant Sciences, North Dakota State University, Department # 7670, P. ) cultivars and to investigate the physiological responses of shoots and roots to WL. Kentucky bluegrass does take longer to germinate than perennial ryegrass, commonly 7 to 14 days. This publication refers primarily to cool-season grasses such as Kentucky bluegrass, perennial ryegrass, tall fescue and fine fescue. Apply just prior to expected annual bluegrass germination (late August or early September). Moreover, they bothGermination testing of Kentucky bluegrass presents many problems to the seed analyst. g. x 48 In. Only mow when required, and keep your turf under 8 inches (20 cm) long. Growth Rate – Kentucky Bluegrass takes longer to germinate and establish than Perennial Ryegrass. Bermudagrass (Seeded) 10 - 30. Perennial and annual ryegrass: Both germinate in just seven to 10 days. From Major League Baseball fields to municipal parks to backyards, Bewitched Kentucky Bluegrass has proven itself on a variety of “fields of play. Germination. Early fall is best due to cool-ing temperatures, fall rains, no competi - tion from crabgrass or goosegrass, and 7 to 8 months of root development and maturation before the summer stress period. Select Turfgrass Seed Choose turfgrass species based on your location, climate, and growing conditions. Ideal Soil: Well-drained, fertile soils, in full sunlight. 63. Seed with a thin coating of soil and sand to improve germination rates, rake lightly, and press. If irrigation can be used, then seeding earlier has a few advantages, especially if Kentucky bluegrass is part of the seeding mix. Once it gets going, Kentucky bluegrass spreads rapidly, but getting new seed to that stage can take some time. We’ve just entered the optimum seeding window for cool-season grasses throughout the state of Indiana. This species produces rhizomes (underground stems) that give rise to new bluegrass plants (Figure 1). Average mowing time can be reduced by 30 percent when grass clippings are not bagged. Credit: "Sweet corn underground germination time lapse" by Neil Bromhall (via YouTube). No matter the temps and time of year, water your lawn in the early morning hours. 0 Plus™. Perennial ryegrass germination rates range from four to 10 days for most cultivars. Cottontail rabbit, wild turkey, and prairie chickens consume the leaves and seeds of Kentucky bluegrass. (2011) found greater germination in coated bluegrass seeds when saline water was used, whereas Serena et al. Seeding: The most important step in establishing turfgrass is to select high quality species and varieties adapted to the site conditions and the intended use of the turf. lodged from the head. The best time to plant Kentucky bluegrass is in the early fall or spring when the soil temperatures are cooler but still warm enough for germination. Time for Ac on! Toll Free: 1-800-688-SEED Fax: 1-509-319-3181 E-mail: [email protected]’s touch on planting 100% Kentucky bluegrass or a blend of KBG and another grass seed. 0 to 4. The first mowing may be expected in about six weeks. Improved heat tolerance over many tall fescue varieties. The objectives of this research were to determine the effect of water aeration, seed soaking duration, and water temperature on mean germination time (MGT) and. Unbelievable! As a cool-season grass (as mentioned above), Kentucky bluegrass grows the most in the spring and fall. New shoots (rhizomes and tillers) are produced primarily in the spring and late summer. growing grass from seed in an 8-day time-lapse. planting and simulated sports turf traffic (Stier et al. Common cool-season grasses are tall fescue, ryegrass, Kentucky bluegrass, red fescue, chewings fescue, and. Today we mow Josh's newly seeded Kentucky Bluegrass Lawn. Till 6-8 inches deep. Bluegrass is able to do this by the way it spreads. Jonathan Green Black Beauty grass seed mixtures are primarily made up of tall fescue, perennial ryegrass, and Kentucky bluegrass. Keep it moist. 8 In. When planting a new lawn with micro clover, prepare the top 4 to 6 inches of your soil by tilling and adding compost. Check the soil temperature and consider it a green signal to sow the seeds if the temperature fluctuates between 50 and 65 degrees F. Add a thin layer (1/4″) of screened compost to top-dress at this time and use the flat/back side of your leaf rake to gently spread the compost/seed to ensure good contact across the lawn without burying your seed too. Kentucky bluegrass should be planted at 10 to 14 pounds per acre in late summer or early fall when temperatures begin to moderate and rains are more frequent. Pre-germination--Midnight Kentucky bluegrass. Kentucky bluegrass seed germination typically occurs within 14 to 30 days under optimal conditions. Time until established: It needs 2 to 5 weeks to establish comprehensively and set firmly on your lawn. Comparing brands reveals that Outsidepride’s Midnight Kentucky Bluegrass boasts a swift germination rate compared to other varieties. e grass is predominantly estab- lished from sod because of its slow germination. Regression of five Kentucky bluegrass growth indices as affected by NaCl, Na 2 SO 4, MgCl 2, and MgSO 4 at the germination and seedling development stage. High humidity, cool temperatures, rain, and cloudy days can lengthen the time required for bluegrass to dry. cultivars/seed lots of rough bluegrass in vitro.