GreenThumb Overseeding & Top Dressing

 

top dressing and overseeding lawn, reseeding lawn, lawn dressing

What is Lawn Overseeding and Top Dressing?

Overseeding lawn, also known as reseeding a lawn, is a key part of professional lawn care. When paired with top dressing, this process can dramatically improve the condition, appearance, and long-term health of your grass. Whether you’re looking to overseed lawn areas that are thinning, or simply want to keep your lawn looking its best, this combination treatment is the ideal solution.

Why Overseed and Top Dress?

By overseeding grass, you’re introducing high-quality overseeding lawn seed into your existing lawn. This helps restore thickness, improve colour, and create a dense sward that naturally crowds out weeds and moss. When combined with lawn top dressing, the benefits are even greater: the dressing protects the seed, nourishes new growth, and improves soil structure—whether you're dealing with clay or sandy soil.

If you've been searching for "grass seeding companies near me" or wondering about the cost of overseeding, GreenThumb offers an expert service using only the best seed and practices.

We have our own exclusive and bespoke grass seed called Diamond Green, as the new seed is introduced into the lawn to replace any of the dead grass, as a blend of Perennial Rye and Fescue grass species which have adapted specifically to any environment. For example, Rye grass performs better in heavier clay soils and Fescue more so in sandier soils.

Benefits

  • Helps to create a thick, healthy grass sward.
  • This healthy sward helps to manage moss and weeds.
  • Seed is designed to tolerate drought, shade, disease.
  • Top dressing lawn helps with water retention and protecting the soil surface helping with drought.
  • Helps to speed up recovery of the lawn after Aeration and Scarification.
  • Giving the lawn an improved colour.

How Often to Overseed Lawn?
Overseeding and Top Dressing should ideally be done once a year. Spring and autumn are the best seasons for overseeding because the soil is warm, and the weather provides optimal moisture conditions for germination. Regular overseeding helps maintain a lush, thick lawn and prevents thinning, which can lead to an invasion of moss and weeds.

 

When can I start using GreenThumb?

You can adopt our services at any time of the year. There is never a ‘bad time’ to start improving your lawn.

Do I have to be at home when you come and treat my lawn?

The majority of our customers are not at home when we call. Since all our vehicles and Lawn Operatives are self-sufficient, we can carry out your treatments as long as we have access to the lawns.

If you would prefer to be in when we are treating your lawn, we will do our best to accommodate your request.

I have children and /or pets. What should I be aware of?

We recommend that you keep off the lawn until any liquid part of the treatment has dried (approx. 2 hours). This stops it being walked off. And this is especially true of our NutraGreen Autumn Long Treatment, we recommend that you keep off the lawn for more than 2 hours then as it could stain a carpet or wooden floor, if it were walked into the home.

Grazing pets such as rabbits and guinea pigs should be kept off the lawn for a minimum of two weeks or three cuts, whichever occurs latest, to avoid ingestion of Ragwort, in particular, which becomes poisonous to them as it dies back.

Do I have to sign a contract?

No, we want our customers to continue with GreenThumb based on our merits in creating a healthier, greener lawn for them - not because they are stuck in a contract. Of course, with our treatment programmes, you will need to sign a Direct Debit Mandate with the relevant T&C's which relate to this payment option.

What is overseeding grass?

Overseeding is the process of spreading grass seed over an existing lawn to fill in bare spots, thicken turf, and improve overall appearance.

Should I mix grass seed with topsoil when overseeding?

It’s better to use a specialised lawn dressing that supports seed germination—like the one GreenThumb offers—rather than general topsoil.

Can I just throw grass seed down on existing lawn?

You can, but for best results, the area should be properly prepared. This includes mowing short, scarifying if needed, and lightly raking to ensure good seed-to-soil contact.

What’s the right grass seed density for overseeding?

The overseeding lawn rate depends on the seed type and condition of the lawn. Our experts will determine the optimal density.

Find your local branch

With over 220 branches across the UK, you’re never too far from a GreenThumb lawn care specialist.

Locate your local branch for a free lawn analysis and estimate - simply enter your postcode in our branch finder.

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