Fermented Sea Beans (Salicornia)

What Is Salicornia?

Salicornia is a succulent coastal plant that grows in small bushes along salt marshes, mudflats, and other salty environments.

You may know it by names such as sea beans, glasswort, or samphire, depending on the species and region.

Its bright green, jointed branches look almost like a miniature version of asparagus. The young stems are crunchy, succulent, and naturally salty from the environment in which they grow.

Salicornia has been eaten as a wild coastal vegetable for generations. Because it grows in salty environments, it can bring a wonderfully briny flavor to the kitchen without needing much additional seasoning.

Like many wild foods, its story is part of what makes it interesting. You’re not simply picking a vegetable—you are harvesting something adapted to a very particular environment.

A Note About Salicornia’s Traditional Uses

Salicornia is a mineral-rich halophyte, meaning it is adapted to growing in environments with high salt concentrations. Its nutritional composition can vary depending on the species, growing conditions, and where it is harvested.

You may find traditional sources describing Salicornia as a diuretic or purifying plant, as well as historical accounts of its use as a food during long voyages. These traditional uses are interesting parts of the plant’s history, but they shouldn’t be confused with established medical treatments.

For me, one of the most fascinating things about Salicornia is simply its relationship with the sea.

The plant takes an environment that would be difficult for many plants to tolerate and makes it home.

And then we get to eat it.

Fermented Sea Beans

One of my favorite ways to work with sea beans is fermentation.

The natural saltiness of Salicornia pairs beautifully with cabbage and carrot, creating a crunchy, tangy ferment that can be eaten alongside meals or added to dishes for a little extra flavor.

Ingredients

1 pound Napa cabbage, finely shredded

3 ounces sea beans (Salicornia)

4 ounces carrots, finely shredded

1 tablespoon sea salt

Preparing Your Ferment

Prepare the Vegetables

Begin by preparing your cabbage, sea beans, and carrots.

If you’ve harvested the Salicornia yourself, make sure you’ve correctly identified the plant and harvested it from a clean, appropriate location. Coastal environments can be affected by runoff, pollution, or other contaminants, so harvesting location matters.

Place all of the prepared vegetables into a large bowl.

Add the sea salt and begin massaging the mixture with clean hands.

Work the vegetables for approximately 5–10 minutes. As you massage the cabbage and other vegetables, the salt will begin drawing moisture from them and creating the brine that will protect the ferment.

If you have the time, allow the salted vegetables to rest for about 30 minutes before packing the jar.

You’ll notice that the vegetables become softer and that more liquid accumulates in the bowl.

That’s exactly what we’re looking for.

Pack the Jar

Transfer the mixture into a clean, wide-mouth quart-size Mason jar.

Pack the vegetables down firmly as you go, helping to push out air pockets and encourage the brine to rise.

The vegetables need to remain fully submerged beneath the brine throughout fermentation.

If necessary, use a fermentation weight to keep the vegetables below the surface.

Leave some headspace at the top of the jar because fermentation produces gases and the contents may expand.

Let It Ferment

Place your jar somewhere cool and away from direct sunlight.

Allow it to ferment for approximately 7–10 days.

Fermentation doesn’t always follow an exact calendar, so pay attention to what is happening inside the jar. You may notice bubbles, a pleasantly sour aroma, and changes in texture and flavor as fermentation progresses.

Taste it when you reach the one-week mark. If you like the flavor, you can move it to the refrigerator. If you’d like it more sour, allow it to continue fermenting for a little longer.

Keep the vegetables submerged throughout the process.

If you see mold or anything that looks clearly spoiled, discard the batch rather than trying to salvage it.

A Little Taste of the Sea

There is something special about eating a plant that comes from the edge of the ocean.

Salicornia already carries the flavor of its environment—salty, bright, crisp, and unmistakably coastal.

Fermentation adds another layer, transforming that crunchy sea vegetable into something tangy and alive with flavor.

This is one of the things I love about wild foods and herbal preparation: the environment becomes part of the story.

You can taste where the plant came from.

And when you take the time to learn the plant, harvest it thoughtfully, and prepare it yourself, the food becomes more than something you simply picked up at a store.

It becomes a connection between you, the plant, and the place it came from.