When to Sow Lawn Seed

We believe the best time of year to sow your new lawn seed is either in the spring, from the end of March to the middle of May. Or from September until the middle of October. As a general rule both sowing time frames should coincide with good, consistent day time temperatures and the risk of frost is greatly reduced. Sowing lawn seed in the middle of summer is possible. However care must be taken to ensure it’s watered every single day until it is established. A new lawn can take up to eight weeks to fully establish and will need correct care until it can look after itself.

It is also important to note that to get a good even germination there needs to be sufficient warmth within the soil. As a rule grass seed will not germinate in soils with a below surface temperature of less than seven degrees Celsius. Correct soil temperatures usually occur when the average air temperature is above ten degrees Celsius. Once your grass seed has started to germinate it is vital that it continues to get watered. Watering requires the ground to be thoroughly soaked until the grass has grown and become well established. Failure to water as above will not actually benefit the new lawn and is likely to do more harm than good.

How to prepare the area and sowing

Here are some super easy to follow steps to get the best out of your chosen lawn seed mixture. If your still deciding on what lawn seed mixture to use take a look at all our grass seed mixture here Lawn Seed Grass Mixtures

Step 1 – Clear and Level the Area 

Start by clearing all weeds and other debris from the area you wish to sow lawn seed onto. This is vital as once the lawn seed is down you may damage the new seedlings if you start walking over them at a later date before they are fully established. Now is also the time to get the area as level as possible. Again this is important as once the grass seed has been sown you cant take it back up and start again if you decide your not happy.

Step 2 – (optional) – Use a Pre-Seeding Fertiliser

Pre-seeding lawn fertilisers are a fast way to help your new lawn seed establish. It is best to apply the pre-seeding fertiliser before the grass seed and give it a day or so to settle before then applying the seed. Pre-seeding fertiliser is packed full of key nurtients that will become available to the newly germinating grass seedlings. The difference between a lawn that has used Pre-seeding lawn fertiliser and one that has not is often very clear. We highly recommend this step to get the most out of your new lawn.

To buy Pre-seeding Lawn Fertiliser click here

Step 3 Double check your level and lightly work the soil 

After leaving the area to settle for a few days now is the time to level off any areas you may have overlooked or fill in dips that have developed as the soil has settled. Remember all the hard work will be worth it when your mower can glide effortlessly over a flat lawn. Once you are totally satisfied the area is level lightly create a tilth with a garden folk. Do not work the soil to deeply just the top few millimeters need to be “fluffed up”. By doing so you are creating a suitable seed bed for your lawn seed to sit in.

Step 4 Choose your grass mixture

If you haven’t already now really is the time to pick the lawn seed you wish to use. We stock a wide range but have given them instantly recognisable names to help you choose, for example..

Budget Lawn Seed – Perfect for those looking for a fast establishing lawn that is very cost effective

Hard Wearing Lawn Seed – This is the best lawn seed mixture for family with children and or pets

Shady Area Lawn Seed – Designed to grow in light shade such as under tree and along fence lines where the sun doesn’t always reach

Putting Green Lawn Seed This lawn seed mixture is for those who really love their lawns. It will create a very attractive, thick, lawn but will need mowing twice a week in the summer to keep it looking its best.

View our full range of lawn seed mixture here (Click Me) 

Step 5 – Spread Your Lawn Seed 

When to sow lawn seed you asked? The time is right now!  Using roughly 50gs per square meter (roughly a large handful) throw the lawn seed onto the prepared soil. Repeat this process until you have covered the whole area with seed. It is better to go a little thinner than put to much grass seed down in one go. You can always add more if you need to. If you do accidently drop a significant amount in one area a good stiff broom is useful to literally sweep it around to disperse it.

Step 6 – Roll The Area to Ensure Seed to Soil Contact 

Rolling the area is not essential but trials show a much better germination time and consistancey when a new lawn is rolled after sowning. Rolling presses the new lawn seed into the soil and helps surround it with moisture. This will speed up its germination and will create a hardier lawn.

Step 7 – Water Water and Then… Water Some More! 

We aren’t joking! The more water a new lawn gets the better (within reason of course). The soil needs to be damp to the touch but you must avoid creating puddles. If you start to get collections of water your new lawn seed will start to float and mover from where you put it. Ideally a new lawn will be watered first thing in the morning and last thing at night. Try not to water in direct sunlight especially once the seed starts to germinate as this will damage it.

Step 8 – Enjoy Your New Lawn

They say the best things in life are worth waiting for and this is true certainly for a new lawn. It is likely to be eight to ten weeks since you first started on your new lawn quest and finally you get to reap the rewards (by reap we mean mow it once a week from now onward! Deep joy…) We believe new lawns are best enjoyed with friends and family or if you’d rather a large, cold beverage of your choice.


For FREE help and support please call our team of grass seed experts on – 01673 308492.