Turnip (Brassica rapa subsp. rapa)

Turnip

Brassica rapa subsp. rapa

Its round root holds earthy sweetness, a staple of cool-season kitchens. Edible root vegetable; common name: turnip.

Full sun
1–2/week
Beginner
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Plant Needs

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Sunlight Full sun to partial shade; tolerates cool, overcast growing conditions
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Watering Keep soil consistently moist but not waterlogged; reduce watering as taproots mature
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Temperature Tolerates light frosts down to -2°C; optimal growth occurs at 10–20°C
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Characteristics

  • Leaf: Basal rosette of rough, hairy, lobed leaves; upper stem leaves are smaller and clasping
  • Flower: Small, four-petaled yellow flowers arranged in upright racemes
  • Root: Globular to oblong taproot with white to purple-red skin and crisp white flesh
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Care Guide

Watering

Keep soil evenly moist during active leaf and root growth

Fertilization

Side-dress with compost once monthly during early growth. Avoid high-nitrogen fertilizers that promote leaf growth over root development

Eggshell powder top-dress:Crush dried eggshells into fine powder; sprinkle lightly around plant bases to boost calcium levels and deter blossom end rot
Pruning
  • Remove yellowing lower leaves to improve airflow and reduce pest habitat
  • Trim flower stalks in the first growing year to redirect energy to taproot development
  • Thin overcrowded seedlings to 10–15 cm apart to allow sufficient root growth space
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA: Non-toxic to cats; no reported adverse effects

Humans: No known toxic effects; edible root and leaves are safe for human consumption

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Garden Uses & Culture

Culture: Valued as a nutrient-dense staple in European and Asian cuisines for thousands of years

Usage: Edible taproot and leafy greens for cooking, salads, or livestock forage