A white bottle of Seaweed Lawn Booster by iGrow Carpet, standing on a green lawn.

SAVE 10%

Seaweed Lawn Booster (Double Pack)

In Stock

£44.98

£49.98

Save £5.00

Feed your soil, not just your lawn. Our professional seaweed booster strengthens roots, improves soil health and supercharges every feed you apply.

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

Bundle Contents:

✓2x Bottle of Seaweed Lawn Booster 8% (1L) (250-500m²)

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Product Overview

Double Up & Save 10% on iGrow Carpet Lawn Seaweed Booster 8%!

Get two bottles and unlock a healthier, greener lawn—for less.

Why settle for one when you can boost your entire garden and save 10%? With our 2x pack of iGrow Carpet Lawn Seaweed Booster 8%, you’ll have plenty of powerful, natural nutrition for your lawn and all the plants around it.

What’s inside?

2 x Bottles of iGrow Carpet Lawn Seaweed Booster 8%
Enough for multiple treatments—perfect for larger lawns or regular feeding
10% off compared to buying individually!

Why choose the double pack?

Extra Value: Save money and time with fewer orders.
Perfect for regular use: Keep your grass lush, strong, and stress-free all season.
Garden versatility: Use on flower beds, shrubs, and even veggies for a natural boost everywhere.

Hurry - stock up and save!

Order your 2x bundle now and see the lush, green difference, naturally!

Technical Specifications

Total Weight

2kg

Coverage

500-1000m²

Application Time

Year Round

Reapplication

4 weeks

Seaweed Lawn Booster

Standard application:

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

After stress such as drought:

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
Mix 400ml per 100m² diluted in 3 to 5 litres of water per 100m²
Apply evenly using a garden sprayer for best results — a watering can can also be used
Do not mow for 24 hours after application
Keep pets off the lawn during application and until dry

Seaweed Lawn Booser

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.

Precision Tool

Measure Your Lawn

Use our free interactive tool to measure your lawn's exact square meterage. Get accurate product recommendations and cost estimates based on your lawn size!