If you do want to sow your seeds in the spring, then it’s best to do it from late March onwards up until the first signs of summer. Before March, it will be too wet as the winter weather will still be making an appearance and could wash away the seeds.
If you’re looking to boost the appearance of your lawn by overseeding it, then March is actually an ideal time to do so as the temperature is cooler and there is still a good amount of moisture in the soil to optimize growth. However, if you live in an area where you’re still vulnerable to experiencing frost or snowfall, you should ideally wait until spring weather starts being more consistent to begin sewing the seeds.
Some grass seeds will be better suited for sowing in cooler or warmer months, so you should always double-check the product instructions to ensure you’ll achieve optimum results.
If you only have the time to sew your grass seeds in the winter and you don’t get very wet weather, you can do so as the seeds will lie dormant until they can germinate in the springtime.