Wild cabbage (Brassica oleracea)

Wild cabbage

Brassica oleracea

A versatile and globally cultivated species that has been bred into numerous familiar vegetables like cabbage, broccoli, and kale.

Requires full sun for optimal growth and head development.
2/week
Moderate
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Plant Needs

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Sunlight Requires full sun for optimal growth and head development.
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Watering Keep soil consistently moist but not waterlogged.
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Temperature Prefers cooler climates and can tolerate light frosts.
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Characteristics

  • Leaves: Thick, fleshy, glaucous (bluish-green) leaves, often forming a dense rosette or head depending on the cultivar;
  • Flowers: Cross-shaped (cruciferous) with four yellow petals, borne in racemes during the second year of growth;
  • Stem: Stout, unbranched in the first year, elongating to bear flowers in the second year;
  • Fruit: A silique, long and narrow, containing multiple small, round seeds.
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Care Guide

Watering

Water regularly to keep soil evenly moist, especially during head formation.

Fertilization

Apply a balanced or nitrogen-rich fertilizer to promote leafy growth.. Heavy feeders that benefit from regular nutrient supplementation during the growing season.

Coffee Ground and Eggshell Mix:Mix used coffee grounds and crushed eggshells into the topsoil. Coffee grounds provide nitrogen for leafy growth, while eggshells supply calcium to prevent tip burn. Avoid over-application to maintain neutral soil pH.
Pruning
  • Remove yellowing or damaged lower leaves to improve air circulation and prevent disease;
  • Harvest heads or leaves promptly to encourage further growth in cut-and-come-again varieties;
  • Remove caterpillars or pests manually when inspecting leaves.
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: Non-toxic to cats per ASPCA.

Humans: Edible and highly nutritious, widely consumed globally.

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Garden Uses & Culture

Culture: Deeply embedded in European agricultural history, cabbage and its relatives have long symbolized humble sustenance, resilience, and peasant survival during harsh winters in Western folklore.

Usage: Widely used as a staple vegetable globally; rich in vitamins C and K, and dietary fiber. Cultivars include kale, broccoli, cauliflower, Brussels sprouts, and kohlrabi.