IMPRESS: Clay Master Lawn Seed

  • Expertly created for clay soils
  • Deep rooting and drought tolerant
  • Hard-wearing, fast-growing and resilient
How much does each bag cover?
Size / Weight
 
New Lawn
(50g per m²)
Overseeding
(35g per m²)

2kg

40m²

57m²

5kg

100m²

143m²

10kg

200m²

286m²

20kg

400m²

571.5m²

How much do I need?
From £21.50
 

How much do I need?

Simply enter the length and width of the area, to calculate how much you need.

x
m2

Product Description

IMPRESS: Clay Master Lawn Seed is a specially blended grass seed mixture designed for clay and heavy clay soil conditions. The tall fescue component has a strong deep rooting system which not only allows it to penetrate your clay soils effectively but ensures a drought tolerant lawn, especially in clay soils that are prone to dryness. The perennial ryegrass in this mix makes way for a fast-growing and hard-wearing lawn to thrive. If your clay soils are also suffering from shade, combine this mix with one of our shaded mixes to give your shaded clay soil lawn the complete solution it needs to impress. So, what are you waiting for? It's time to finally master your clay soils!

What area does each IMPRESS: Clay Master Lawn Seed bag cover?

New lawn Overseeding an existing lawn
2kg - 40m2
5kg - 100m2
10kg - 200m2
20kg - 400m2
2kg - 57m2
5kg - 143m2
10kg - 286m2
20kg - 571.5m2

Mixture Breakdown

50% Perennial Ryegrass
45% Tall Fescue
5% Smooth Stalked Meadow Grass

Drag the slider below to see the difference IMPRESS: Clay Master could make to your garden.

 

Usage Guide

Overseeding an existing lawn with IMPRESS: Clay Master Lawn Seed

Remove any dead grass, weeds or moss by scarifying / raking the area
Rake the area enough so that the soil is loose and not compact
Sow the seed at our recommended rate of 35g per m2, by using a seed spreader or your hand
Rake the seed in after sowing so that the seed is in amongst the soil
Firm down by foot or by using a roller to improve seed to soil contact
Water the just-sown seed well 

Read our full guide How to sow a new lawn.

Sowing a new lawn with IMPRESS: Clay Master Lawn Seed 

Dig the soil over to a depth of 20-25cm
Remove weeds by hand or use a weed killer
Add top soil if you believe the soil to be poor quality or unlevel
Rake the area to get a level seedbed
Sow the seed at our recommended rate of 50g per m2, by using a seed spreader or your hand
Rake the seed in after sowing so that the seed is in amongst the soil
Firm down by foot or by using a roller to improve seed to soil contact
Water the just-sown seed well 

Learn more with our guide How to overseed a lawn.

IMPRESS: Clay Master Lawn Seed Sowing Guide & Pack Sizes

Recommended Mowing Height 20 - 40mm

Sowing Rate (New Lawn)

50 grams per m2

Bag Coverage

2kg covers 40m2
5kg covers 100m2
10kg covers 200m2
20kg covers 400m2

Sowing Rate (Overseeding an Existing Lawn)

35 grams per m2

Bag Coverage

2kg covers 57m2
5kg covers 143m2
10kg covers 286m2
20kg covers 571.5m2

Aftercare

Aftercare

Continue to water your lawn deeply and daily for the next six weeks, avoiding if there is prolonged rainfall
Your lawn will take up to 6 weeks to fully establish
Once there is an even coverage throughout the lawn and grass blades are hitting heights of 5-7cm, your lawn is ready for its first mow on the highest setting
To keep your lawn healthy, green and disease / weed free, remember to regularly fertilise

Product Questions

Product Questions

Hi there
I have just stumbled on this product and cannot wait to use it. I have just bought a cottage in Midhurst West Sussex and I have never ever had a garden like it. It is saturated sodden in the winter and like concrete in the summer. I have left a beautiful well stocked garden and landed with a garden with not a plant in site....and boggy grassy patchy lawn to boot.
I have only ever had a sandy garden before having always lived near a beach.
I have aerated the grass to an inch of it's life and can't wait to get going.
My question is, it is now coming into February. When is the absolute earliest I can start to re seed the baldy patches.
Thanks so much
Sue
Question by: Sue on 31 Jan 2021, 16:22
Hi Sue

Thank you for your enquiry. The grass sowing season is generally from March - September. You can confidently sow grass seed when temperatures are 8-10 degrees and above consistently for at least two weeks with no adverse weather conditions forecast. Always consult a two week forecast prior to sowing.

You may also want to consider our QUICK RELEASE: Pre-Seed fertiliser. It provides the soil and seed with all the nutrients they need. It helps to create a great foundation for sowing new seed whilst strengthening existing grass. It will also help increase germination and establishing a strong root system.

Congrats on the new house and we would love to see some before and after pictures of the garden.
Answer by: Roisin McCann on 1 Feb 2021, 09:41
can l lay seed in october
Question by: paul james on 3 Oct 2020, 13:31
Hi Paul

Grass sowing season is generally from March - September. You can confidently sow grass seed when temperatures are 8-10 degrees and above consistently for at least two weeks with no adverse weather conditions forecast. Always consult a two week forecast prior to sowing.

Many Thanks
Roisin
Answer by: Roisin McCann on 5 Oct 2020, 11:24
Hi
I’m looking to over-seed a mixed/clay soil with few areas that are prone to moss and want grass that has fine grass blades - is this the right product?
Question by: LeNic on 23 Sept 2020, 10:37
Hi Nicolas


Thank you for your recent enquiry.

IMPRESS: Clay Master Lawn Seed is a mix of fine fescue and perennial ryegrass along with a small amount of stalked meadow grass. Whilst it does consist of fescues which is a finer grass variety the ryegrass is slightly thicker, which is known for its durability and hardwearing properties. There are finer mixes available but this does grow extremely well in clay based soils. The tall fescue component has a strong deep rooting system which not only allows it to penetrate your clay soils effectively but ensures a drought tolerant lawn, especially in clay soils that are prone to dryness. It does have some shade tolerance due to the meadow grass in the mix. https://thegrasspeople.com/impress-clay-master-lawn-seed


If you have any other questions I would be happy to help

Many Thanks
Kind Regards,

Roisin
Technical Advisor

Answer by: Roisin McCann on 24 Sept 2020, 14:06
Hi, I have a small lawn (c. 40m2) clay soil, already has worn grass I want to improve, c. 25% shade in summer, more in winter. Has been holding water, I have airated with pitchfork and now want to sow grass. I also have children. Which seed do you recommend? Thank you.
Question by: Fingal Dorman on 20 Feb 2021, 15:55
IMPRESS: Clay Master is g designed for clay and heavy clay soil conditions. The tall fescue component has a strong deep rooting system which not only allows it to penetrate your clay soils effectively but ensures a drought tolerant lawn, especially in soils that are prone to dryness. The perennial ryegrass in this mix makes way for a fast-growing and hard-wearing lawn to thrive. It does have some shade tolerance due to the meadow grass in the mix, but if your lawn really suffers from shade you may wish to blend it with one of our specialised shade mixtures.
Answer by: Roisin McCann on 22 Feb 2021, 08:26
How to judge the watering is enough for the new lawn? Could you show me some picture example?
Question by: David on 6 Jul 2022, 07:50
Hi David, thanks for your question. We have some guides on watering your lawn that you may like to check out:

How To: Water New Grass - https://thegrasspeople.com/video-article-how-water-grass-seeds/

How often should I water my new lawn: https://thegrasspeople.com/often-water-lawn/
Answer by: Helen McGale on 6 Jul 2022, 09:19
Has the grass seed been treated so birds won't eat it!
Question by: Steve Cole on 28 Sept 2020, 09:57
Hi Steve

The seeds are completely natural and not coated with anything – so aren’t bird repellent. We have a few recommendations on our blog on this but in short:

1. Use visual deterrents such as reflective objects
2. Use noise deterrents such as windchimes
3. Place netting over the area
4. Provide alternative food source such as bird food


Many Thanks
Roisin
Answer by: Roisin McCann on 28 Sept 2020, 14:29
Hi

What is the sowing season for this seed please, or, what is the latest time to put this seed down?

Kindest Regards
Question by: Natasha Merrin on 26 Aug 2022, 09:50
Hi Natasha, thank you for your question. The grass sowing season is generally from March - September. You can confidently sow grass seed when temperatures are 8-10 degrees and above consistently for at least two weeks with no adverse weather conditions forecast. Always consult a two week forecast prior to sowing.
Answer by: Helen McGale on 26 Aug 2022, 10:20
Hello i have an issue with my grass in the garden we have a clay base garden. In the summer it's like concrete and the winter it turns into a water feature. For most of the year its well shaded and to help things even more we have three dogs that enjoy running in the garden all year round. What would you recommend?

Thanks
Phil
Question by: Phil Robson on 17 Nov 2022, 20:29
Our IMPRESS: Clay Master Lawn Seed would most likely be the best option for your soil as it is a specially blended grass seed mixture designed for clay and heavy clay soil conditions

The tall fescue component has a strong deep rooting system which not only allows it to penetrate your clay soils effectively but ensures a drought tolerant lawn, especially in soils that are prone to dryness. This mix is also quite durable so it should hold up ok against the dogs running around.

It does have some shade tolerance due to the meadow grass in the mix, but if your lawn really suffers from shade you may wish to blend it with one of our specialised shade mixtures.


By the sounds of it, you may need our Steadfast: Ultra Shade mix to blend with the clay mix if it is always in shade, as the Ultra shade mix is for areas that receive little to no light. Steadfast: Ultra Shade contains a super species called Poa Supina which is exceptionally shade tolerant.

We would advise that shade mixes are sown when the weather is warmer, late spring and summer. Due to the lack of sunlight they rely heavily on the warmer temperatures to assist germination.
Answer by: Colm Hicks (Admin) on 18 Nov 2022, 08:45
Can I put grass seed down any time of the year or is the winter a bad time to start patching up my lawn?
Question by: rachel salisbury on 15 Oct 2021, 21:44
The success of sowing at this time of year really depends on where you are based, the north of the country tends to be much cooler than the south of the country.
Ideally temperatures for germination need to be 8-10 degrees Celsius, if you have these sort of temperatures consistently for 2 weeks then the seeds should germinate.
If you feel that the weather is not guaranteed or it is too cold in your part of the country then I would suggest that you delay sowing until Spring.
Answer by: Roisin McCann on 18 Oct 2021, 09:46
Hi, Can this grass seed withstand winter temperatures if sown Oct. / November; will it germinate below 8-10 degrees?
Question by: Mike on 19 Oct 2021, 09:24
Hi, with all our seed we do not recommend sowing below these temperatures. The success of sowing at this time of year really depends on where you are based, the north of the country tends to be much cooler than the south of the country. Ideally temperatures for germination need to be 8-10 degrees Celsius, if you have these sort of temperatures consistently for 2 weeks then the seeds should germinate.
If you feel that the weather is not guaranteed or it is too cold in your part of the country then I would suggest that you delay sowing until Spring.
Answer by: Roisin McCann on 19 Oct 2021, 10:37

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