Although the preferred time to sow grass seed is the late summer or early fall, you can successfully sow grass seed in the winter. If you are wanting a new lawn, you’re likely impatient to start, but the key to success is knowing the best time to sow grass seed. Simply put, yes, grass seed will germinate if left on top of soil. Here's a table providing the minimum and preferred soil temperature for a number of crop seeds and the estimated time it takes the seeds to germinate. However, get it wrong and even the best quality lawn seed money can buy might not germinate at all. In early autumn, the soil is still warm from months of summer sun. Dormant seeding can be extremely successful. At Jonathan Green, we mix elite varieties of Kentucky Bluegrass seed as well as tall fescue and perennial ryegrass to create our Black Beauty® Ultra grass seed mixture . Germination is just one obstacle the seed needs to overcome. The time period for grass seed germination varies on the grass seed type. Will Grass Seed Germinate On Top Of Soil? Next, simply fertilize the soil and keep the grass damp until the seedlings are least two inches tall. However, this is hardly an ideal state for grass seeds. The best time to do it is between late summer and mid-autumn. It can be even longer than this in cooler temperatures. This article will explain when is the best time to sow grass seed and why. To get fully estbalished before the full force of winter sets in, young seedlings need adequate time to establish. Of course you can also remove the mulch and use the sheet or glass on the bare soil and this has the added benefit of germinating any seeds in the patch that can be pulled before you start sowing. Pre-germinating grass seed enables the seeds to crack open and start growing before they are in the lawn so that the waiting time to observe the new grass is very short. Warm-season grasses will take at least a week or two to germinate, with Zoysia grass generally taking the longest amount of time to germinate. Lay down the grass seed with a spreader and then rake over the soil and freshly laid seeds. O ver Christmas I was busy sowing grass seed. The germination time for grass seed ranges from 5 to 30 days depending on the variety you plant. This combination of warm soil, moderate day temperatures and cool evenings encourages fast germination and establishment of newly sown cool-season grass seed. Grass seeds can pre-germinate in cool conditions to get a jump-start on a new lawn in the spring. The long germination times of warm-season grasses is one of the reason many homeowners opt to buy plugs of existing plants rather than grass seed: Zenith® Zoysia Grass … The grass won't germinate until the following spring when soil temperatures warm. Thirty years ago I worked with an experienced 70-year-old head gardener, Les Jones, on … This method of sowing grass is called dormant seeding. The seeds will need sunlight, oxygen, moisture and the correct temperature to grow, as long as there’s also soil that it can absorb the appropriate nutrients and moisture from. Again, in the autumn, perennial ryegrass mixtures offer the … It is necessary for the seeds and soil to connect for proper germination. As always, the earlier seed is sown in the autumn the better. Perennial Rye grass will take only 3 to 6 days to germinate. The Best Time to Sow Grass Seed Common seed mixtures such as perennial ryegrass and tall fescue take about 12 to 14 days to germinate. Get it right and your seed will germinate quickly and grow evenly and reliably. “She’s lost the plot”, you might be thinking. Several distinct advantages make fall the best time to plant cool-season grass seed. 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