trefle.io · Taken Jun 25, 2021 by Christa (cc-by-sa)
Brassicaceae
Sea-kale
Crambe maritima
Also known as Crambe, Seakale, Sea cole, Crambe pontica
Edibles & Herbs · Flowering Plants · Native Plants · Coastal · Edible · Sea Kale · Brassicaceae · White Flowers · Drought Tolerant · Heritage Vegetable · Pollinator Friendly · Perennial · Blue Foliage
Sea-kale is a striking coastal perennial with bold blue-green foliage and fragrant white flower clusters that pollinators adore. Plant it in full sun to partial shade in sandy, well-drained soil — it is highly tolerant of salt spray and coastal winds once established. The young shoots are edible and were historically blanched as a springtime vegetable, adding heritage appeal to the kitchen garden.
Growing conditions
The details behind the basics
- Daily light
- 6 hours
- Watering
- Water moderately; established plants are fairly drought tolerant and dislike waterlogging · Every 10-14 days
- Maintenance
- Low
- Soil
- loam
- Soil pH
- 7–7.5
- Temperature
- -20°F to 90°F
- Cycle
- Perennial
- Propagation
- Seed, Division
Hardiness
USDA 4a-9b
Form & growth
Mature size and habit
- Mature height
- 12 in – 3 ft
- Spread
- 2 ft
- Spacing
- 24 in apart
- Growth rate
- Moderate
- Root depth
- Medium
- Flowers
- White
- Foliage
- Medium
Ecology & origin
Where it belongs and what it brings
- Native to
- Baltic States, Belgium, Bulgaria, Czechoslovakia, Denmark, Finland, France, Germany, Great Britain, Ireland, Krym, Netherlands, North Caucasus, Northwest European R, Norway, Oregon, Romania, South European Russi, Sweden, Transcaucasus
- Attracts
- Bees, Butterflies, Moths
Sources: trefle, usda
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