About the Landscape Juice Network

Founded in 2008. The Landscape Juice Network (LJN) is the largest and fastest growing professional landscaping and horticultural association in the United Kingdom.

LJN's professional business forum is unrivalled and open to anyone within within the UK landscape industry

LJN's Business Objectives Group (BOG) is for any Pro serious about building their business.

For the researching visitor there's a wealth of landscaping ideas, garden design ideas, lawn advice tips and advice about garden maintenance.

Morning all. I'm quite keen to try a solid seaweed as a lawn feed. Most of the info I have seen suggests application in early spring. But can it be used year round in lieu of regular granular feeds? How readily does it break down into the soil? The lawns I'm thinking of are in pretty good condition and cut with a cylinder mower. Thanks. 

You need to be a member of Landscape Juice Network to add comments!

Join Landscape Juice Network

Email me when people reply –


  • PRO Supplier

    Hi Glen,

    Seaweed meal is a good gentle feed for the lawn in the long term but it could be expensive! It will not provide much in the way of NPK so it can't really replace a mineral feed as such, but it will help with soil conditioning and water retention in the long term leading to a healthy lawn.

    You can apply any time of year, it will not scorch. You'll get the best results in the spring and autumn. It won't do a lot in the winter.
    On watering it will usually swell up and become jelly-like. The bacteria and fungi in the soil will have a great old time breaking it down over 3/4 days. It's best to apply to a recently cut lawn that is dry as you want the product to get through the leaves to the soil surface. Once it's there you will not notice it.

    Please stay away from "calcified seaweed" (aka Maerl Harvesting it is dreadful for the environment and there are more sustainable forms of calcium available for fertilising. 

    Maerl (also known as rhodolith) is a collective name for non-geniculate coralline red algae with a certain growth habit. Maerl grows at a rate of c.…
  • Thanks for that Daisy. Not quite the product I was hoping it would be in this instance, but certainly something I'll consider as an early season conditioner in the future. 

  • PRO Supplier

    Have you thought of next best option and a liquid seaweed? There are lots about and various claims/ counter claims but regular use - (little & often) does improve soil health and a foliar application has been linked to increased disease/ fungal resistance. Certainly red thread treatment & prevention will be improved by liquid seaweed. Not a growth stimulant or energy source like a fertiliser but improving the soil = improves the crop (grass lawn)....


  • Hi all, new poster here but been lurking for a while,

    I use C-Complex, made by Headland, which is an NPK fertiliser which also contains seaweed meal.

    C-Complex - Fine Turf Fertilisers | Headland Amenity - A complete range of fertilisers, biostimula…
  • PRO Supplier

    Soil Biology SeaFeast TDS 30 March 2017.pdf


    Please have a look at our Seafeast. Seaweed plus Fulvic.

  • Sorry I didn't respond sooner, but thanks for all the info.

This reply was deleted.

Industry Jobs


Landscaper needed, experience with paving/decking/fencing essential to work within a small Brighton based company Good rate of pay depending on experience. Driving licence preferred.

Hard Landscaper

This is a full time permanent position for a professional hard landscaper at a small business which specalise in high end landscaping and masonry. This position includes very little soft landscaping and gardening as we work closely with another company who undertake that aspect of the projects. You will need exceptional attention to detail and


Due to the imminent retirement of one of our excellent, long standing gardeners, EDR Landscapes are looking to hire a full time, seasonal domestic garden and grounds maintenance operative. A further part time opportunity is also available. Full time work is available each season from March to November, with some occasional winter work available. Work

Business Objectives Group (BOG)

Latest blog post

PRO Supplier

Brian Scott, Course Manager at the Rosemount course at Blairgowrie Golf Club in Perthshire, Scotland, believes that the success of his greens is largely thanks to a tank-mix combination of ICL’s Vitalnova Stressbuster and Syngenta’s…

Read more…

Trade green waste centres

If you've received help from the Landscape Juice Network and you'd like to say thank you, why not make a small donation?

The site is maintained as an indpendent industry resource and it's become an essential tool for those working in the landscape industry.

Thank you

Phil Voice

Founder Landscape Juice

Make a donation

LJN Sponsor



PRO Supplier

Brian Scott, Course Manager at the Rosemount course at Blairgowrie Golf Club in Perthshire, Scotland, believes that the success of his greens is largely thanks to a tank-mix combination of ICL’s Vitalnova Stressbuster and Syngenta’s…

Read more…
PRO Supplier

Visitors to the Sherriff Amenity stand (E060) at SALTEX 2018 will get the chance to find out how they could significantly improve their turf through a range of unique products and some new dedicated apps.

Sherriff Amenity, the UK’s…

Read more…
PRO Supplier

Market leading MM seed on display at SALTEX

Limagrain UK, one of the world’s largest seed companies will be showcasing its impressive range of grass seed mixtures, including the market leading MM60 and MM50 on their stand (G041) at SALTEX 2018.

MM is one of the most respected…

Read more…