Generally, allow the newly seeded grass to grow to the maximum growing height recommended for its species. When giving the grass its first cut, set your mower blades to a height that's slightly higher -- 6.5 mm (1/4 inch) -- than the maximum mowing height for its species. If a lawn is to be mowed in winter, it's important to make sure that it happens under the right conditions. The Best Weed Killer for Creeping Charlie, Royal Horticultural Society: Lawns from seed. The seed package will give you important information about germination rate. Walking on soft ground can cause lasting damage to the grass. Grass seed germinates readily in the spring, so this is the ideal time to fix any bare patches that have appeared and make sure your lawn is a solid block of perfect green. Avoid giving your lawn its first trim until the top layer of soil has dried out from rain or watering. At this time, lower your mower blades and bring the grass down to its actual recommended mowing height. You always want to cut grass with clean, sharp mower blades but this is particularly important when mowing new grass or lawn. As the grass continues to grow, it will stifle weed growth. Treat grassland as a crop - remove grass grown since last grazing and prevent post-grazing height increasing over the season Use a Sward Stick to monitor height. The 8 stages in creating a new lawn from grass seed. When you should sow grass seed You can sow Lawn UK lawn seed mixtures at any time from late March to mid-October providing that in periods of unusually dry weather the seedbed is kept constantly moist until the grass is about 6cm (2.5 inches) high. At this time, lower your mower blades and bring the grass down to its actual recommended mowing height. See my guide to learn how to cut long grass. Two or three days later, cut the grass down by about one-third of its length. Dr James Holloway has been writing about games, geek culture and whisky since 1995. Don’t let it dry out, and make sure that you don’t cut the grass too short, or you’ll open up room for weeds to grow. It’s important to reduce the height of long grass gradually. Lawn mowers can struggle to cut long grass. Wait three or four days, then give the new grass its follow-up mowing. Because grass grows more slowly in winter, the height of the cut should be higher than a summer or spring cut; the goal is only to cut away the tops of the blades, creating a neat, even appearance, rather than to cut back growth. The trick to mowing in winter, then, is to choose a day with the right conditions. In addition, and in typical UK fashion, there is also usually some rain forecast to keep your soil and new seeds moist – so there is less need to have the hose out, or the sprinkler on stand-by! Otherwise, the pressure of the lawnmower's weight will compact the underlying moist dirt and crush the developing roots. New lawns can be started from seed in spring, and bare-patches over-sown with seed to help them fill out. Frost can make grass brittle. Grass Clippings: When should you stop mowing your lawn? The seeds are coated with fertiliser that means they germinate much quicker and become better established, while also saving the hassle of needing to feed your lawn with a separate fertilizer as the grass grows. Pay close attention to your grass over the first few months of growth. This will stop it growing too long and keep clippings to a minimum. These lawn seed mixtures are suitable for new lawns, repairs and over seeding for shady and dry lawns, play and ornamental lawns, front and back lawns and everything in between. Depending on the grass variety, the germination rate is normally between 80% and 90%. Germination may be slightly slower in spring. September temperatures are still ideal for germination, hitting heights of 8-10 degrees and above. It takes about six weeks for the seeds to grow into a full lawn that you can cut. This is simply because if the grass has been able to reach this height, it is viable and growing well, and can therefore be cut. It may take two months or more before your seeded grass reaches the appropriate heights for the first mowing. This should take about 8 weeks, so be patient! When the air temperature drops below 5 degrees, grass will stop growing. When you sow grass seeds, don’t expect for all the grass seeds to germinate. You must bear in mind that seeds can be destroyed by invaders like animals and birds. Once you've passed the hurdles of soil preparation, sowing the lawn seed and ensuring even and continuous watering, make sure you mow the grass at the appropriate times to enhance lawn establishment. Areas that you have recently sown with new grass seed, need to be kept moist at all times, this will help the seed to germinate and establish a strong root system. In the growing season between spring and early autumn, the lawn will be growing strongly and should be cut every week or even twice a week if possible. However, some may find that even the reduced growth of the winter season can still leave a lawn looking scruffy. Cutting new grass poses its own challenges. When is the last time to cut grass before winter? Cutting New Grass. Maintaining a 2 or 3 inch height is critical; do not cut the grass lower than this range because invading weeds and heat stress invite pathogens and pests into the newly seeded lawn. Ideally use a cylinder-bladed mower. Your newly seeded lawn reacts more sensitively to environmental factors, especially when it undergoes the stress of its first mowing. The last regular mowing of the year usually takes place in November. grass filled in. As a result, it may sometimes be necessary to cut grass in winter. Being able to do your seeding in wetter spring or autumn months helps but if you can supply the water or the polythene then summer seeding can be extremely successful. Typically, however, mowing frequency falls in late summer and then rises again in September. The frequency of mowing depends on the weather. For new grass you want to be sure the grass has reached at least 3 ½ inches in height, if not more, before cutting for the first time. The frequency of mowing depends on the weather. To cut down on weeds further, your best bet is keeping your . If sowing in autumn, the seed will germinate quickly as the ground is warm and moist. GrassSeeds.com supply grass seed for next day delivery across the UK, including for lawns, gardens, sports pitches, and agriculture. Winter brings a number of new threats to grass. New grass is more tender, flexible and finer than more established grass. It is weed free, certified under DEFRA's seed certification rules and guaranteed fresh. During this period, mowing might be as frequent as once a week. The grass should be at least three inches tall before the first mow. When giving the grass its first cut, set your mower blades to a height that's slightly higher -- 6.5 mm (1/4 inch) -- than the maximum mowing height for its species. This is the perfect time to start reducing the height of your lawn mower if you like a shorter cut. Walking on soft ground can cause lasting damage to the grass. Always water with a fine spray; to great a force of water will displace the seeds. For example, let tall grasses grow to 10 cm (4 inches) before trimming and allow shorter varieties to grow to 5 cm (2 inches). By combing grass seeds with fertilizer and soil enricher, you have everything you need to successfully grow a brand-new lawn or cover up an existing one. For example, a first mowing should reduce the grass to just above the recommended height. Grass seed is the cheapest way to create a new lawn. It’s a good idea to sow grass seed just after rain or before light rain is due, so the seed will germinate quickly. Patches can be caused by a number of reasons. The best time to plant grass seed is when the weather is doing what you want it to. In the UK, most lawns experience their highest growth rates during the hot, but relatively damp months of May and June. Depending on the seed used and the temperature you should start to see some green shoots within 10 to 14 days. Autumn (generally September) is ideal If you can’t wait until September, do it in the spring (April/May is generally best) but keep an eye out for weeds However, all this advice is predicated on the weather. The conventional wisdom that grass shouldn't be cut during winter comes down to the fact that British winter weather usually keeps grass growth to a minimum. The new grass will not be well-established with deep roots for about eight weeks, so mow your lawn carefully the first few times. Top up soil nutrient levels to encourage strong root growth Pressure on a frosted grass blade will break off its tip, causing unsightly patches your lawn. When planting a new lawn, timing is one of the most critical elements of both seeding and aftercare. Before laying a new lawn, take some time to think about the part it will play in your overall garden layout. Depending on the variety of grass seed you use, it can take as little as five to as long as 30 days for the grass to germinate. In his spare time, he enjoys yoga and urban patio gardening. Try and avoid cutting new grass until it is at least 3 inches or more in length, and mow less frequently possible than the rest of your lawn. Apply a … When the new lawn is 5cm (2in) high, cut with a rotary mower to 2.5cm (1in). Seeded lawns require the longest time period between planting your grass and mowing. Buy online today from the true grass seed experts. Copyright 2020 Leaf Group Ltd. / Leaf Group Media, All Rights Reserved. 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