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Crambe maritima
Crambe maritima
Crambe maritima
Crambe maritima

Crambe maritima

TAXONOMY

FamilyBrassicaceae
GenusCrambe
Zone4

ABOUT

Crambe maritima, commonly known as sea kale, is a perennial plant in the Brassicaceae family. It is native to the coastal regions of Europe, particularly around the North Sea and Baltic Sea. The plant is known for its thick, waxy leaves and white flowers. It has a dormancy period during the winter months.

ALSO KNOWN AS

Cakile Pontica
Kale
Sea Cabbage
Sea Kale
Cochlearia maritima
Crambe gigantea
Crambe pontica
Crambe suecia
Crambe suecica
Crucifera maritima

OVERVIEW

WaterDry
SoilLoamy
LightDirect Bright (6 Hours)
Temperature15° C
Humidity60%
GDD1,800
Dormancy3 Months
pH6.5
Pressure1,013 mbar

DETAILS

Care Instructions
Sea kale prefers full sun and temperate climates. It thrives in moderate temperatures and requires well-drained soil. Watering should be done sparingly, allowing the soil to dry out between waterings. The plant benefits from moderate humidity levels.
Harvest
Crambe maritima, commonly known as sea kale, is typically harvested in the spring when the young shoots are about 6-8 inches tall. To harvest, cut the shoots at the base with a sharp knife. It is important to blanch the shoots by covering them with a pot or forcing them to grow in darkness to keep them tender and pale. The leaves can also be harvested throughout the growing season, but they are best when young and tender. Ensure to leave some shoots and leaves to allow the plant to continue growing.
Soil
Sea kale prefers loamy soil that is well-drained. It can tolerate sandy soils but performs best in nutrient-rich, slightly acidic to neutral pH soils. Good drainage is essential to prevent root rot.
Fertilizer
A balanced fertilizer with a nutrient composition of 5-10-10 is recommended. Fertilize the plant in early spring and again in mid-summer to support its growth and flowering.
Repotting
Repotting is generally not necessary for sea kale as it is typically grown outdoors. However, if grown in containers, repot every 2-3 years to refresh the soil and provide more space for root growth.
Propagation
Sea kale can be propagated by seed or root cuttings. Seeds should be sown in early spring, while root cuttings can be taken in late winter or early spring. Ensure the cuttings have at least one bud and plant them in well-drained soil.
Pruning
Pruning is required to remove dead or damaged leaves and to maintain the plant's shape. Prune in early spring before new growth begins and remove any flower stalks to encourage leaf production.
Toxicity
Sea kale is not toxic to pets or humans. In fact, its young shoots and leaves are edible and can be cooked or eaten raw.
Additional
Sea kale is a hardy plant that can tolerate salt spray and windy conditions, making it ideal for coastal gardens. It is also known for its ornamental value due to its attractive foliage and flowers.
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How To Grow Crambe maritima | EarthOne