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The first grass cut of 2025: when should I mow?
Knowing when the right time is to cut your lawn plays a key part in helping your grass grow thicker and healthier. Whether you are eager to get back into the garden coming out of winter or you are planning to sow a lawn in spring, read on to find out everything you need to know on making the first grass cut!
When does grass cutting season start
From mid-March onwards you can begin to think about mowing your lawn! It’s important to not get ahead of yourself with mowing, as if you cut your grass before the spring season, you could leave your lawn susceptible to frost and disease damage.
If you are planning to sow a new lawn, you will be doing so after March anyway (we hope!), so allow 6-8 weeks for the grass to fully establish after it has been sown before you give it its first grass cut.
How tall should my grass be before I cut it
Aside from cutting your lawn in season, you should also allow it to grow to 5-7cm before its first grass cut. By doing so, you won’t accidentally damage your grass and stunt its future growth, which is particularly important for new lawns!
This growth height for the first cut is recommended for all of our grass seed mixtures.
4 tips for lawns first grass cut
- Wait until your lawn is it is 5-7cm before its first grass cut
- Rake away the cuttings (why not add them to a compost heap)
- Let the grass settle for a week or two after your first cut
- Going forward, mow at the recommended height (mowing height differs per product)
Check out our video below on how and when to cut grass for the best growth throughout the year:
Tidy up after cutting to enhance growth
Ensure that you remove all the clippings after you have mown your lawn. If you leave them on a newly seeded lawn, you could contribute to thatch, undoing all your hard work. In addition, dead grass sitting dormant on top of your lawn stops much-needed sunlight from getting to your new grass.
Grass types have different tolerances for mowing height
After the first initial mow, different types of grass seeds have varying tolerances for how close they can be mowed thereafter.
- For example, the fescues in our STATEMENT: Front Lawn mix will tolerate close mowing because they are of a finer-leafed variety, and close mowing helps to achieve the ornamental look that fescues are known for. The recommended mowing height for STATEMENT: Front Lawn is 10-20mm.
- The recommended mowing height is 20-40mm for our ever-popular SUPERSTAR: Back Lawn. This height is double the recommended mowing height for STATEMENT: Front Lawn. Whilst this doesn’t entirely mean that the mix won’t withstand closer mowing, it shows that it is not intended for an ornamental lawn. But likewise, it will perform well at a slightly higher height
What are our recommended grass mowing heights
We have recommended mowing heights for all our grass seed mixes, which can be easily found in the ‘Usage guide’ tab for each of our products.
If you haven’t got a ruler handy to measure your grass height, each of our grass seed mixtures comes with an instructional card that already has a ruler on it!
Can you mow wet grass?
One final point is that we don’t recommend mowing a wet lawn. This is because wet grass tends to clump together, causing the possibility of getting an uneven grass cut and an undesirable finish to the looks of your lawn! On top of that, the weight of your lawnmower digging into the damp soil can damage the roots of your grass, encourage common grass diseases and hinder the growth of your lawn.
So, contrary to popular belief, the first grass cut isn’t the deepest; it might just be the easiest! However, if you have any questions about this, please drop us an email, and we have included some further reading below to help ensure your lawn is as good as it can be!
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