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Sea Kale

Crambe maritima

vegetable

Sea kale is a coastal perennial vegetable prized for its tender, blanched shoots that resemble asparagus in flavor and texture. Native to rocky shorelines, it is salt-tolerant and produces edible stems and flower buds in spring. This hardy plant can produce for 8–10 years once established, making it a long-term garden investment.

Sea Kale

Common Problems

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Care Guide

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Light
Full sun to partial shade; at least 6 hours of direct sunlight daily.
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Water
Moderate watering; allow soil to dry slightly between waterings. Drought-tolerant once established due to deep taproot.
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Soil
Well-draining, sandy or gravelly soil with low fertility. Tolerates poor soil and high salinity.
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Fertiliser
Minimal feeding required; apply balanced fertilizer sparingly in spring. Avoid excessive nitrogen.
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Temperature
Hardy perennial; thrives in cool to moderate temperatures. Tolerates coastal conditions and salt spray.
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Humidity
Tolerates dry conditions; no special humidity requirements. Salt spray does not harm the plant.

Toxicity

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Sea kale is edible and non-toxic to all household members.

Common Diseases

Common Pests

Seasonal Care

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Resume regular watering and feeding as growth picks up.

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Peak growing season. Water and feed regularly.

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Reduce watering as growth slows. Stop heavy feeding.

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Minimal watering and feeding. Protect from frost if needed.

Sea Kale Care Guide — Crambe maritima | GreenScout