Sea Kale leaves resemble a thick healthy collard leaf, steam to eat. Good companion to kale and collards but not as productive. Some blanch by covering with opaque material. Disease and somewhat cabbage moth resistant. High in potassium and vitamin C. Limit one packet per customer. Tags: Blue Green, Spring Fall.
Wild crafted along the British coast for its edible leaves and roots for millennia. Delicious sea kale recipes.
How to grow sea kale from seed, division
Start indoors 4-6 weeks before last frost or direct sow in March or April in seed bed outdoors. Germination is variable even with fresh seed, typically 1–3 plants out of ten sown. We pot up the first year and raise in a partial shade nursery, then transplant after last frost the second year. Prefers rich deep sandy loam soil, loosen soil to 1’. May be divided by root cuttings after third or fourth year. Scarify, remove the round husk that holds the seed for better germination by rolling seeds between two cutting boards, a great kids activity. Needs winter protection in Zone 6 or cooler to prevent ground from freezing. Enjoy, a farm favorite. Soil pH 6.6-7.8. Hardiness zones 5–9.
Days from maturity calculated from the date of seeding. Average 3,015 seeds per ounce. Germination in optimal conditions: 50-65%. Usual seed life 3-4 years. Isolation distance for seed saving: 1/2 mile.
Planting Depth 1/4–1/2”
Soil Temp. Germ. 65-75˚F
Days to Germ. 12-30 scarify
Plant Spacing 18-24”
Row Spacing 3-4’
Days To Maturity 2 years
Part Shade, Moist Well Drained