1LT BOTTLE OF SEAWEED ON A GREEN LAWN - iGrow Carpet

Seaweed Lawn Booster 8% 1L

4.95 (20 reviews)
|
In Stock
£24.99
Feeds the soil, not just the grass. Use it monthly and every feed you put down works harder.

Why It Works

  • Improves soil health and boosts microbial activity
  • Feed the soil, not just the grass
  • Encourages deeper roots for a healthier lawn
  • Safe for kids and pets when used as directed
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Product Overview

Feed the soil, not just the grass.

A concentrated seaweed made from Ascophyllum nodosum, harvested from the west coast of Ireland. It enriches the soil with natural growth promoters, trace elements and amino acids. Creating the conditions your grass needs to thrive from the ground up.

Use it alongside your regular fertiliser programme any time of year to improve soil health, reduce stress and stimulate growth.

The science bit

8% Seaweed 
A concentrated source of natural nutrients derived from Atlantic seaweed, used as a soil conditioner for centuries.

Natural Growth Promoters (Cytokinins, Auxins, Gibberellins)
Plant hormones that help your grass use applied fertilisers more efficiently and stimulate healthy, sustained growth.

Trace Elements (Sulphur, Calcium, Magnesium, Iron, Copper, Zinc, Boron, Manganese)
Micronutrients that relieve stress in the lawn and support overall plant health.

Amino Acids
A full profile of naturally occurring amino acids that support microbial activity in the soil, strengthening roots and improving resilience.

Technical Specifications

Total Weight
1 kg (1 Litre)
Coverage
250-500m²
Application Time
Year Round
Reapplication
4 weeks

Standard application:

  1. A 1 litre bottle treats up to 500m² at the standard rate — use our lawn measurement tool to calculate how much you need
  2. Mix 200ml per 100m² diluted in 3 to 5 litres of water per 100m²
  3. Apply evenly using a garden sprayer for best results — a watering can can also be used
  4. Do not mow for 24 hours after application
  5. Keep pets off the lawn during application and until dry
  6. Avoid applying during extreme heat, drought or frost

After stress such as drought:

  1. A 1 litre bottle treats up to 250m² at the higher rate — wait until the lawn has recovered and is no longer under stress before applying
  2. Mix 400ml per 100m² diluted in 3 to 5 litres of water per 100m²
  3. Apply evenly using a garden sprayer for best results — a watering can can also be used
  4. Do not mow for 24 hours after application
  5. Keep pets off the lawn during application and until dry

Q: How much do I need?

A 1 litre bottle treats 250 to 500m² depending on the application rate. For regular maintenance and healthy lawns, the lower rate covers up to 500m². For stressed, patchy or nutrient deficient lawns the higher rate covers 250m². Use the higher rate if your lawn is recovering from drought, heavy use or poor soil conditions.

Q: How often should I apply it?

Once a month year round alongside your granular fertiliser programme.

Q: How do I apply it?

Dilute and apply with a garden sprayer or watering can.

Q: Will I see an instant result like the iron?

Not in the same way as seaweed works beneath the surface improving soil health and root strength, so the results build over time and make everything else you apply work better.

Q: Is it safe for kids and pets?

Yes, it's a natural product and safe once applied.

  • 5 stars: 19 (95%)
  • 4 stars: 1 (5%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
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Rodney Rutherford

Yes I have been using Seaweed Lawn Booster now for several months and Im starting to see the results.

Hi Rodney, fantastic that your seeing positive results with the Seaweed Lawn Booster! Thanks for sharing your experience.

K
Keith Oswald

I’ve used different seaweed products over the years but never really appreciated the results until I used Robbie’s Seaweed Lawn Booster recently. After a couple of days the change in the lawn was so noticeable. Highly recommend tying it.

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Kris Tomkinson

So easy to use and enjoy treating my garden with this.

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David Keay

Certainly worked on our lawn

Hi David, we're glad to hear the Seaweed Lawn Booster worked well for your lawn! Thanks for your review and support.

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Anonymous

Great service great products

Thank you ❤️ Happy to help!

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Garry Walsh

Extremely happy with my seaweed lawn booster and autumn fertiliser. Managed to get it down just in time to see effects before the winter weather gets too bad.

Great Stripes!

A
Anthony Hall

Great product - thoroughly recommend

Thanks Anthony... And great photos, the lawn is looking brilliant! ❤️

A
Andrew Poole

Used the seaweed regularly since new lawn laid in May. Very pleased with the results.

Always great seeing people's lush green carpets, keep up the good work

M
Mike

Appears to do exactly what it says. Now I need to know what helps keep a new lawn healthy through the Autumn and Winter.

Check out the Learning Hub, there's a full lawn calendar in there that'll walk you through exactly what to do month by month

D
David Hunt

Excellent product, your grass will look significantly better after 2-3 weeks

Hi David, we're thrilled to hear you're happy with the Seaweed Lawn Booster! Thanks for sharing your experience.

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Jordan

Top class product have tried and tested a few times now

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David Brown

Great product

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Justas Steikunas

I’ve been using seaweed every 4–5 weeks, and I can definitely see the difference. After each application, the grass in my yard looks greener and healthier.

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Jason

Fantastic!

A
Alan Smith

Used it once so far & it’s brilliant. My lawn is the deepest green on our row. Easy to mix & apply using a backpack sprayer.

Hi Alan, we're thrilled to hear your lawn is looking so vibrant! Thanks for sharing your experience with our Seaweed Lawn Booster. Happy gardening!

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Richard loane

Worked well

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Jason

Great stuff feom Robbie and Jason 😀

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Gordon Wotherspoon

Very easy to use and apply and help with growth and greening of the grass.

That's what we like to hear Gordon, simple and effective! ❤️

A
Anonymous

This is a great product with impressive results. However, the increase in price from last season to this, in an already expensive product, might cause me to reconsider before buying again.

Hi Colin, thanks for the review and glad you're getting good results from the Seaweed Booster.

You're right that the price has gone up from last season. The cost of raw materials increased and I had a choice between dropping the quality or adjusting the price. I went with keeping the product the same because there's no point selling something cheaper if it doesn't work as well.

I appreciate you flagging it and I appreciate your custom. Hope the lawn is looking well this spring.

Robbie

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Graham Mawdsley

Grate stuff

100% appreciated Graham, thank you! 🙌