If you can’t make it to a beach or collecting seaweed isn’t allowed in your area, order dried (but unroasted) seaweed online and use that to make your fertilizer tea instead. [3] X Research source It will still have all the same plant-boosting nutrients as fresh seaweed. Only collect seaweed that’s washed up on shore. Pulling up live seaweed can harm the local ecosystem. [4] X Research source
Store your seaweed tea in a sealed container out of direct sunlight for up to one year. [12] X Research source