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Seaweed for my herbs?

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We were visiting the beach and saw a man taking large quantities of fresh seaweed and putting them in his truck. He told me that he puts it iin his garden as mulch. Can I try it with my herbs: basil, mint, and rosemary? Thanks.

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  1. Dried kelp, sold in stores as kelp meal is a good source of nutrients for plants. It's not really fertilizer, more like vitamins. I expect any seaweed would be good in that respect. However, I wouldn't just toss some wet seaweed onto my garden. Rinse it a bit to remove excess salt (probably not a big deal unless you plan to add a lot of seaweed to your garden year after year), and chop it up a bit and dry it for a few days so it doesn't form a solid mat over the soil. Maybe mix it with some other mulch material or compost?