Archive for the ‘Seaweed’ Category


Mike Gathering Seaweed

Seaweed, fresh from the ocean, is a great amendment for garden soil as well as an addition to compost. Here in Rhode Island, known as the “Ocean State” with over 400 miles of Atlantic Ocean coastline, seaweed is easily found along the shoreline.

Once or twice a year, Mike and I pack the SUV with muck buckets and a rake and drive to our favorite seaweed gathering site – First Beach in Newport, RI (also known as Easton’s Beach). Growing up in Newport, I spent many days here with friends, lounging on the sand. We seldom swam because chances were that the water would be thick with seaweed, a daily plague of this particular beach.

Imagine my surprise, then, when we drove to the beach a few weeks ago and saw nothing but pristine sand. Not a slimy piece of seaweed to be found anywhere. It’s an hour’s drive from where we now live and we didn’t want to go home with empty buckets. I thought of the many areas we might find seaweed and remembered a place that might have enough seaweed to fill our buckets.


View of Newport Bridge from King’s Park

So we headed down to Newport’s 5th Ward, where I grew up, and drove to King’s Park which indeed had the seaweed we were looking for. The beach at King’s Park looks out over Newport Harbor and has a great view of the Newport Bridge as well as the shoreline along lower Thames Street. However, it’s not the kind of beach that attracts tourists. If you didn’t know it was there, right on Wellington Ave. next to the Ida Lewis Yacht Club, you would drive right by it on your way to the Ocean Drive which meanders around the coast and up to Bellevue Avenue and its many mansions.


Ida Lewis Yacht Club

We had the small strip of beach completely to ourselves and as Mike gathered the seaweed that had washed ashore, I admired the yachts moored in the harbor. I also had a view of Goat Island that once was home to the Navy Torpedo Station before it was transformed into a tourist destination with a hotel and condominiums.  Pointing out to the harbor stood the statue of General Rochambeau who, in 1780, landed in Newport with his troops after the British had withdrawn.


View of Goat Island in the Distance


Statue of General Rochambeau

Being at King’s Park brought back childhood memories when I used to walk to the Park from home on hot summer days. I realized that I hadn’t been back since I was 9 or 10 years old, but what a perfect place, I thought, to gather seaweed and recall times past. If you travel to Newport, you might want to discover this out-of-the-way spot with its great scenic views and free parking.


Seaweed Ready for the Compost Bin

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2-deserted-beach-and-mikeNo matter where you are in Rhode Island, you cannot be more than 45 minutes away from the Atlantic Ocean. One of the many advantages of being a gardener in the Ocean State is easy access to seaweed whenever the need or mood arises.

5-seaweed-and-shellsLate every fall after Thanksgiving, Mike starts his winter compost pile. In addition to loads of shredded leaves, he adds potato, apple and banana peels and other raw vegetative waste plus coffee grinds and tea bags. Then he mixes in a special  ingredient — seaweed. We call seaweed “seafood” for roses — or any other plant — because it contains a wealth of nutrients plants need, including all the major and minor nutrients but no weeds, weed seeds, insects or diseases.

The Rhode Island state constitution guarantees each citizen the right to gather seaweed below the high water mark from any beach. So, on a bright and sunny day in December we traveled the 45 minutes to Newport where I grew up, planning to arrive at the time when the tidal tables, published daily in the newspaper, indicated low tide.  One of our favorite seaweed stashes is at Easton’s Beach also known as 1st Beach to locals.  Low tide was at 11 AM and when we arrived at noon, we saw the parking lot full of occupied cars with people eating lunch and enjoying the view. The beach itself, though, was deserted.

6-mike-gathering-seaweedAfter unloading his muck buckets and grabbing his rake, Mike and I walked down to the beach, and while dressed for a December day in New England, we were pleasantly surprised that the day was warm and the raw wind that blows in off the Atlantic in late fall was non-existent.

Usually we harvest seaweed after an ocean storm churns up and washes in the crème de crème of seaweed. But no storms were predicted for the imminent future, so we hoped that enough seaweed had washed ashore with the incoming tide.

3-gathering-seaweedWe indeed found clumps of seaweed covered with fine beach sand deposited along the high water mark which made it easy for Mike to spear with his special short-handled beach rake, shaking off the excess sand and tossing it into the bucket.


Meanwhile, I watched as the beach filled up with people walking their dogs, children running along the water’s edge and stopping to stare out into the vastness of the Atlantic and a lone surfer measuring the waves.

1-children-on-beachMike filled several buckets with seaweed, along with some quahog and scallop shells, all the while chatting with folks walking by and explaining to them, when asked,  why he was “cleaning the beach.” After an hour, we packed up, a little reluctant to leave, realizing that we had chosen the perfect day to go “seaweeding.”

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A few days ago Angie and I quietly slipped away to one of our favorite seaweed stashes that we have discovered along the Rhode Island coastline. We wondered if Hurricane Sandy which had howled ashore last week had left a load of seaweed above the high water mark as is usually the case after extreme weather. I packed the truck with plastic muck buckets and a rake and drove to a stretch of beach along the Atlantic coast in the southern part of the state. There we found plenty of seaweed but, surprisingly, not as much as I had expected. I started filling the muck buckets, shaking out as much fine sand as I could, while Angie walked along the beach with her camera. I also tossed in some clam and quahog shells which come in handy for hardscape as well as a source of calcium for garden soil. The weather was ideal and my only companions were a few beachcombers walking by and a couple of testy seagulls fighting over little necks that they had grubbed out of the beach sand at low tide. It took me less than 30 minutes to fill the buckets and as Angie strolled back we headed off to lunch. It was a good day.

Like people, roses love seafood and seaweed is the seafood of choice for roses. Because Rhode Island’s major geographic feature is the magnificent Narragansett Bay, the smallest state in the union lays claim to over 400 miles of coastline. This explains why Rhode Island is called The Ocean State and with this much coastline, there is no shortage of seaweed which can be used as mulch, soil conditioner, and a winter cover for roses. Fresh seaweed does have its drawbacks though. Out of the water it smells like low tide and it will stink out the car if you leave it inside too long. But no worry, this strong seaside scent quickly dissipates outside.

So, why go to all this bother? Because, while seaweed is a low-analysis fertilizer, more or less equivalent to that of farm manure, it contains all the major and minor nutrients, as well as most of the trace elements, including manganese, iron, boron, zinc, copper, and a chelating agent known as mannitol, a simple sugar that makes nutrients already in the soil available to plants.  And not only that, it is a teeming stew of micronutrients, hormones, vitamins, trace minerals, enzymes, amino acids, and growth stimulants which are directly available to plants.

When seaweed is added to garden soil, it conserves moisture and controls weeds but brings no weed seeds or plant diseases with it to the garden. University of Rhode Island researchers report that seaweed usage may result in increased plant resistance to mites and aphids and some diseases and maybe even to cold temperatures.

I first use fresh seaweed as a nutrient-rich winter cover and mulch, then turn it into the soil the following spring. It decomposes quickly, feeding soil microorganisms that, in turn, breakdown nutrients into forms that plants can absorb. As an organic amendment, it enhances the soil’s ability to hold moisture, helps prevent wide swings in pH, and improves the tilth of the soil. I also plan on adding some to this year’s compost pile increasing the nutrient value to the black gold without concern for weed seeds. While many gardeners are concerned with seaweed’s salt content, anecdotal evidence indicates no ill effects to the soil from salinity with moderate seaweed use.

Harvesting seaweed is easy. Just head to the beach with a rake and basket like we do and help yourself. In Rhode Island, it is not possible to be more than a 45-minute drive to the seashore from any point in the state. In fact, the Rhode Island constitution guarantees its citizens the right to gather seaweed from any public source. This harkens back to a century ago when seaweed was prized as an important agricultural product widely used on farms as well as home gardens.

In short, seaweed is an almost perfect organic soil amendment with the biggest drawback being availability. It does take a special effort for us to go to the shore occasionally to gather seaweed but visits to the ocean are always a treat and we usually make a day out of it. Regardless, when we’re done both the seagulls and I got the frutti di mare that we were looking for. Besides, as a New England gardener, what could be more fitting than using products from the ocean to make plants grow?

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