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24/09/2013 at 09:07

Seaweed is among the best gifts nature makes available for the gardener. Seaweed will benefit your garden any time of year, but it is especially useful as a mulch to protect plants during hot, dry weather. In our garden, we’ve come to rely on seaweed as a valuable, yet free, source of fertilizer, mulch and organic pest control all in one natural material.

Benefits of seaweed for gardening

Gathering seaweed for the garden has always been a favorite outing for our family. We usually take a small skiff to a nearby beach and load up with as many sacks as we can safely transport home. It’s fun for children, as they can participate as well as an adult, or they can simply enjoy the beach while we gather the seaweed. As we fill up our sacks, our thoughts drift to the many benefits this will bring our garden.

  • Saves water, keeps soil moist at ground level

    The purpose of any mulch is to keep garden soil from drying out at the surface. And by preventing moisture from evaporating, mulch reduces the need for watering. The practice of mulching is essential in areas where conditions are hot and dry.

  • Eliminates the need to weed
    Mulch covers the soil and blocks new weeds from sprouting. Because the soil beneath the mulch remains moist, any weeds which do manage to sprout through the mulch are easy to pick.
  • Repels slugs and other pests

    Slugs are immediately repelled by two things – salt and sharp-edged materials. Seaweed has a natural salt content which repels slugs, and within a few days of application it dries and becomes quite crispy. Slugs do not like “crispy” surfaces, as the sharp salty edges cut into the soft body tissue. While some mulches may provide hiding spots for slugs, earwigs and other pests, seaweed mulch does not have this disadvantage.

  • Enriches the soil
    Seaweed is a broad spectrum fertilizer that is rich in beneficial trace minerals and hormones that stimulate plant growth. Seaweed is high in carbohydrates which are essential building blocks in growing plants, and low in cellulose so it breaks down readily. Seaweed shares no diseases with land plants.
  • Boosts lethargic plants
    Seaweed fertilizer contains an abundance of fully chelated (ready to use) micro-nutrients which can be readily absorbed by plants without any further chemical decomposition needed.
  • Helps lighten the soil
    Compacted soil can benefit as seaweed mulch breaks down. As the material becomes incorporated into the soil, aeration is improved and the soil becomes more crumbly and moist.
  • Does not contain weed seeds, unlike bark mulch
    Two years ago we used commercial bark mulch to cover our garden pathways for the purpose of blocking weeds. Today, these pathways are sprouting horsetail, an invasive weed which can be difficult to eradicate. Seaweed does not bring any foreign weed seeds into your garden.
  • It’s free!

But what about salt? Is this a problem?
We have been using seaweed as mulch for many years and have not seen any adverse effect, such as a salt overload in the soil. In our region we have plentiful rain. If you are concerned about salt, seaweed can be spread out over the driveway and rinsed with a hose. Of course this is not an issue if you are using freshwater lake weed.

Gathering seaweed for use in the garden
  • Gather ‘mid-beach’
    Seaweed is often found scattered on the beach from the water’s edge to th
24/09/2013 at 21:56

 Zoomer goes off to check when the next high tide is....

Gathering fallen leaves is also a winner with children, I offer a treat to the one who can put the most leaves in a bin bag...erm.. maybe that should be on the tricks of the trade thread... 

25/09/2013 at 10:04

Tut tut tut Zoomer they get more in india and China,thats slve labour alright lol.

26/09/2013 at 12:12

Do you rent them out? I have some work that needs doing,but can i heckers like get my lads to do it.I dont know what they will do when they have their own gardens to look after

26/09/2013 at 16:09

Always advocating the use of seaweed in the garden.  Nothing better whatever soil,type you have.  (it helps a little if you live near the coast of I do)

26/09/2013 at 18:37

no problem Verdun if you your like Zoomer and her sweatshop way to get it transported.

26/09/2013 at 20:19

Not so sure about renting them out, good labours hard to come by these days.

They helped to eat my strawberries and toms this year. Gathering seaweed is usually a great day out, they look forward to that.

26/09/2013 at 21:26

I'll be off then, soon as car fixed. Don't see the bus driver being happy with bagfuls of seaweed!

26/09/2013 at 21:46

Look on the bright side, the bus driver would be less pleased if it was horse muck

27/09/2013 at 22:32

Very true! I've been tempted, believe me!

01/10/2013 at 12:37

does anyone have a wormary and hoh do you use it and what are the benfits of it?

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121 to 131 of 131 messages