Mertensia maritima

Mertensia maritima, also known as the oyster plant due to the iodized taste of its slightly bluish leaves, is a perennial and creeping herbaceous plant that reaches a height of 15cm (6in) and a width of 50cm (20in). Quite demanding, it can be grown in open ground or in a pot. Sow in February or March for a harvest from April to September according to your desires.

Mertensia maritima belongs to the Boraginaceae family, just like Borage, but it has a stronger iodized taste than the latter. Present throughout the northern hemisphere in dune ridges, this species is now protected. The plant has thick blue-green foliage with a matte texture and produces pendulous bell-shaped flowers in a deep blue-violet colour during the summer. Highly decorative, it can be planted both in ornamental gardens and vegetable gardens. This perennial and very resistant plant remains in place for several years and has deciduous foliage, which disappears in winter. It requires well-drained soil and can also be grown in pots.

In cooking, the fleshy leaves, with their oyster taste, can be consumed raw, adding a touch of originality and an interesting texture to fish dishes or salads.

Harvest: It is done as needed.

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

Gardener's tip: If your plants are being eaten by snails and slugs, place ash or coffee grounds nearby, to be renewed in case of rain.

Note: Delicate plant to cultivate, slow growth, reserved for experienced gardeners. Germination is often slow and capricious. However, once successful, the plant lives for many years in the garden.