Mertensia maritima - Vegetable Oyster

Mertensia maritima is sometimes called the Vegetable Oyster in reference to the surprising taste of its slightly bluish leaves. It is a perennial herbaceous plant with a creeping habit, reaching 15 cm (6in) in height and 50 cm (20in) in width. It can be grown in the ground or in a pot. Plant it in spring or autumn and harvest as needed.

Mertensia maritima belongs to the Boraginaceae family, like Borage, but its iodine taste is more pronounced. This plant, which grows spontaneously in dunes, is now protected. It is an herbaceous plant with blue-green foliage and offers bell-shaped flowers in a blue-violet colour in summer. Very decorative, Mertensia maritima can be planted in ornamental gardens as well as vegetable gardens. This perennial and hardy plant remains in place for several years, although its foliage disappears in winter. It requires well-drained soil. You can also grow it in a pot.

In terms of cuisine, the oyster-tasting leaves are generally consumed raw and add a touch of originality to fish dishes or salads.

Harvesting: It is done as needed.

Storage: Freshly picked leaves can be stored for a few days in the refrigerator. They can also be preserved in vinegar, like samphire.

Gardener's Tip: If your plants are being eaten by snails and slugs, place ash or coffee grounds nearby, and replace this after rain.

Note: Delicate plant to cultivate, slow growth, recommended for experienced gardeners.