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    Sea by Leaf * Maine Farmed * Organic

  • We have had multiple requests for online consultations. So good news, we now offer 45 minute Zoom consults for $85. This is a wonderful way to get your questions answered quickly. Topics can include business matters, nursery, farm design, processing, markets, product development-- pretty much anything seaweed! These consultations are confidential.

    We Now Offer Zoom Consults!


    Organic Seaweed Products, Organic Seed, and Consulting.

  • New MSE Course

    Seaweed Farming Intensive

    In Person and Zoom

    Friday to Sunday October 11-13, 2024

    9:30 AM to 4:30 PM ET

    The Maine Aquaculture Association recently published the "Maine Seaweed Benchmarking Report" (8/2023). The report highlighted significant issues facing existing farmers:

    • 82% of farmers had gear failures and/or tangled lines;
    • Over 70% had seed failure issues;
    • Over 70% had biofouling issues; and
    • Average seaweed yields were a sub-optimal 4.24 pounds per linear foot of seeded line.

    These issues support statements by farmers in the report regarding the sustainability of seaweed farming as a business:

    • "Tell new farming people that they can make this a part of their living. But likely not their whole living.”
    • “If it wasn’t for lobstering, kelp wouldn’t even be an option. Lobster pays all the bills and kelp uses the stuff we already have. We have almost everything else for fishing. If you had to go buy a boat to do this with, it wouldn't work."

    Our course is designed to provide the essentials of operating a seaweed farm that avoids the issues facing those using the outdated Ocean Approved (Atlantic Sea Farms) Manual methods:

    • High yield farming techniques-- 20 to 35 pounds per linear foot;
    • Farming design that uses less gear (lower cost) with less risk of gear failure or entanglements (higher profitability);
    • Sourcing good seed-- free seed is not the answer nor is buying seed from nurseries which cannot grow custom seed for your farm using local genetics; and
    • Seaweed husbandry that minimizes biofouling.

    This course will help existing farmers to improve their game and new farmers who wish to learn best farming practices.


    This course will also demonstrate the value of starting with LPAs before applying for a standard or experimental lease, as well as seeking year round leases versus leases that require your crop to be harvested before it is ready.


    Our program is a mix of hands on and classroom sessions. Participants should arrive Friday evening October 11th for our first sessions, with a full day of sessions on Saturday October 12, and a half day of sessions on Sunday October 13. A certificate option is available for those who complete the certificate requirements which are available upon request. A meal option is available. Discount housing is also available.


    The program cost is $495. Meal option, two dinners and two lunches, is $50. The certificate option is an additional $200. Zoom participantion fee is $395.

  • What We Do

    Visit Springtide Innovations to learn how we are transforming aquaculture.

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    Seaweed Farming

    Maine Grown. Organic.

    Springtide Seaweed is a fully integrated organic seaweed aquaculture company. We grow over four varieties of seaweed including sugar kelp, skinny kelp, alaria, and dulse on the largest organic seaweed farm in North America. Our seaweed nursery provides USDA organic seed to commercial and hobby farmers throughout Maine and New England-contact us with your needs. We also dry and process seaweed into a variety of forms and products.

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    Serving Clients Worldwide.

    Springtide Seaweed is the industry leader in organic and sustainable seaweed aquaculture. We provide consulting services to new and existing seaweed aquaculture companies. We also advise investors interested in the seaweed aquaculture space or considering investing in seaweed or other aquaculture ventures. Additionally, we offer customizable seaweed aquaculture educational programs. Please contact us for more information.

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    Pristine Waters Downeast.

    Maine is a special place, especially for seaweed. The cold clean waters of downeast Maine create ideal growing conditions for a large variety of seaweeds. Our coastal communities are rooted in the traditions of living from the sea and encompass a great respect for our marine resources. Sustainably farmed seaweed from Maine is arguably the finest seaweed in the world. We are committed to supporting our local Maine communities.

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    Why Is Our Seaweed And Company Different?

    Farmed not wild. Solar dried. Tested for safety. Unmatched quality.

    We are unique in the seaweed industry. Here are some of the reasons why:

    • Our seaweed is organically farmed. We do not wild harvest so as to protect native wild beds that are under stress.
    • We use state of the art farming technques that minimize gear and plastics in the ocean, use minimal amounts of fuel, and have the highest yields in the industry. Our farms grow 5 times the average seaweed farms so we need only 20% of the gear other farms utilize.
    • We do not use energy intensive processing methods such as blanching, freezing or mechnized dryers. Our products are dried using solar energy and are custom milled and vacuum packed so that they are shelf stable for years and require no refrigeration or freezers.
    • Our processing maximizes the retention of nutrients and are tested for safety.
    • We are fully integerated from seed to finished product. The entire process is certified USDA organic.
    • We hand harvest in small btches to assure there is no biofouling, invasive species, or poor quality seaweed getting past quality control.
    • We farm year round to maximize yields while minimizing environmental impacts.
    • We integrate other species on our farms, including sea urchins.
  • About Springtide Seaweed

    We grow organic seaweed in Frenchman Bay Maine, and offer seaweed ingredients and products, consulting services to the seaweed industry and investors,

    and seaweed farming technology and products.

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    Our Company

    'Springtide' in old English means 'springtime'. This is harvest season for the seaweed crop. A spring tide is also the time when the tide "springs forth" during the new and full moon, giving us the highest and lowest tides of the month.

    Springtide Seaweed operates the largest organic seaweed farm in North America in Downeast Maine, cultivating some of the finest seaweeds in the world for people and the planet. We also operate a state of the art USDA Organic seaweed nursery and processing facility in Gouldsboro, Maine.

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    Sarah Redmond

    Springtide Seaweed founder Sarah Redmond is a dedicated seaweed farmer, tending the wild ocean garden and inspiring others about all things Maine seaweed. Sarah has been a leader in seaweed aquaculture since 2010 through the development of new nurseries and educational programs, crops and products, sea farmer training programs, the first organic certification program for seaweed crops, and through major facilitation of the industry.

  • Contact Us

  • Visit Delicious.

    come grab a bite at our little corner of wynwood