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Sea Beet (Beta vulgaris subsp. maritima)

Common Names of Sea Beet:

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  • Sea Beet, Wild Beet, Sea Spinach, Coastal Beet, Maritime Beet
     

Identification of Sea Beet:

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  • Perennial plant growing up to 1.2m tall

  • Dark green, glossy, somewhat fleshy leaves

  • Leaves are oval to diamond-shaped with wavy edges

  • Prominent midrib and veining

  • Small green flowers in tall spikes from June to September

  • Grows in rosettes close to the ground

  • Deep tap root system

  • Often found growing on coastal areas, particularly on shingle beaches, salt marshes, and cliff tops

  • Stems may be reddish
     

Possible Lookalikes of Sea Beet:

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  • Dock species (Rumex spp.) - Distinguished by longer leaves and a lack of glossy surface

  • White Goosefoot (Chenopodium album) - Mildly triangular and mealy leaves

  • Glasswort (Salicornia spp.) - Succulent stems should not be confused with Sea Beet's foliage

 

Meaning of the Latin Name:

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  • Beta: Derived from Celtic 'bett' meaning red, referring to the deep red of beetroot

  • Vulgaris: Common

  • Maritima: Of the sea, referring to its coastal habitat
     

Foraging Season for Sea Beet:

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  • Leaves available year-round

  • Best harvested in spring and early summer

  • Young leaves are most tender and flavorful

  • Can harvest throughout winter in mild climates, especially in coastal areas where frost is less severe

 

Food Use of Sea Beet:

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  • Young leaves eaten raw in salads, mildly salty and slightly sweet

  • Older leaves cooked like spinach, suitable for a wide range of dishes

  • Can be used in soups, stews, and pasta dishes

  • Excellent substitute for spinach in any recipe

  • Rich in vitamins A, C, and K, minerals, antioxidants, magnesium, and fiber

  • Good source of iron, manganese, and folate

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Medicinal Use of Sea Beet:

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  • Traditional digestive aid, thanks to its fiber content

  • Contains antioxidants, beneficial for reducing oxidative stress

  • Historically used to treat skin conditions and inflammation

  • Consumed for regulating blood sugar levels and improving iron consumption

  • Rich in minerals, promoting bone health and boosting the immune system

 

Other Uses of Sea Beet:

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  • Ancestor of cultivated beets, chard, and sugar beet

  • Important genetic resource for crop breeding, especially for disease resistance

  • Can be used as animal fodder, particularly valuable in coastal grazing systems

  • Historically used as a dye plant due to its pigments

 

Safety Notes for Sea Beet:

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  • High oxalic acid content, which can inhibit calcium absorption (common in leafy greens)

  • People prone to kidney stones should moderate consumption

  • Avoid consuming very large quantities raw due to potential oxalate toxicity

  • Ensure proper identification to avoid accidental ingestion of inedible plants

 

Harvesting Tips for Sea Beet:

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  • Pick young, fresh leaves for the best taste and tenderness

  • Take only a few leaves from each plant to ensure plant health and sustainability

  • Avoid harvesting from polluted areas, such as near heavy traffic or industrial sites

  • Best harvested away from dog-walking routes to ensure sanitation

  • Leave the root system intact to allow the plant to regenerate

  • Don’t strip individual plants bare to allow for continuous growth
     

Preparation and Storage of Sea Beet:

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  • Wash thoroughly before use to remove any sand or salt residues

  • Can be blanched and frozen for long-term storage

  • Fresh leaves keep for about a week in the refrigerator when wrapped in a damp cloth or paper towel

  • Can be dried for later use though this is less common

  • Preserve by fermenting like other leafy greens, which can enhance nutrients and flavor

  • Best used fresh for maximum nutritional value
     

Additional Tips for Foragers of Sea Beet:
 

  • Respect local ecosystems and follow foraging regulations to encourage sustainable practices

  • Avoid over-harvesting from any single area to protect natural populations

  • Best to harvest at least 50m away from main roads to avoid pollution contamination

  • Look for plants growing in clean, unpolluted areas such as remote coastal regions

  • Consider cultivating your own sea beets from collected seeds or cuttings, as they can grow well in gardens

  • Make note of good harvesting spots for future foraging trips

  • Plants tend to be more lush and abundant on south-facing slopes where they get more sunlight

  • Remember that this plant is an important food source for wildlife, so harvest responsibly.

©2023 by Foraging and More

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