plant

Sea kale

Crambe maritima

Updated 8 Jul 2026 · AI-parsed entry

Sea kale (Crambe maritima) — a plant, for Full sun, Medium water.

What it needs & gives back

↓ Needs

Sunlightfull sun to partial shade
Watermoderate

↑ Gives back

Biomassmedium

Through the year

Emergence

Emergence of new shoots in early spring after the last frost and when soil temperatures rise above 5 C.

Flowering

Flowering occurs approximately 60 days after emergence, typically in late spring to early summer.

Fruiting

Fruiting follows flowering, with seed pods developing over about two months.

Senescence

Foliage begins to die back with the first autumn frosts.

Timing is relative to your local season (temperate Northern Hemisphere).

Soil interactions

Drainagewell-drained
Nitrogen fixingNo
MycorrhizalNo
Accumulatespotassium, calcium
Soil texturesandy, loamy
Organic matterMedium
Compaction toleranceHigh

Propagation

Methodsseed, root_cuttings
Difficulty2 / 5
Establishes in~2 yr
Stratificationcold_moist
Self-seedingLight
Divisionautumn

Wildlife & pests

Attractspollinators
Can host pestscabbage white butterfly, flea beetle
Can host diseasesclubroot