• Komatsuna vegetable seeds for planting with fresh green Japanese mustard leaves
  • Fresh Komatsuna plant with broad green leaves
  • Komatsuna vegetable seeds for planting with fresh green Japanese mustard leaves
  • Komatsuna vegetable seeds for planting with fresh green Japanese mustard leaves
  • Japanese Komatsuna Mustard Greens Growing in Home Garden
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EdenValleySeeds

Komatsuna Vegetable Seeds for Planting – Japanese Mustard Greens Garden Seeds

Komatsuna Vegetable Seeds for Planting – Japanese Mustard Greens Garden Seeds

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$18.89 USD
$18.89 USD
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DELIVERY ESTIMATE
Oct 22 – Oct 24 Estimated arrival
ORDER Oct 12 Order placed
ORDER READY Oct 14 – Oct 15 2–3 business days
DELIVERED Oct 22 – Oct 24 10–12 business days total
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Grow Komatsuna from seeds for tender green leaves with a mild mustard flavor. This Japanese leafy vegetable is ideal for home gardens, raised beds, containers, salads, stir-fries, soups, and fresh seasonal harvests.

Key Features

  • Produces smooth, broad green leaves with tender stems.
  • Traditional Japanese mustard green for home vegetable gardens.
  • Mild flavor makes it versatile for fresh and cooked dishes.
  • Suitable for containers, raised beds, garden beds, and kitchen gardens.
  • Performs well during cool and mild growing seasons.
  • Supports repeated harvesting when outer leaves are picked regularly.

Growing Benefits

  • Provides fresh leafy greens for home meals.
  • Adds attractive green foliage to vegetable gardens.
  • Suitable for small-space and container gardening.
  • Can be harvested as baby greens or mature leaves.
  • A versatile choice for gardeners interested in Asian vegetables.

Seed Specifications

  • Common Name: Komatsuna / Japanese Mustard Greens
  • Botanical Name: Brassica rapa var. perviridis
  • Plant Type: Cool-season leafy vegetable
  • Foliage: Broad, smooth green leaves
  • Leaf Color: Deep green
  • Growth Habit: Upright leafy rosette
  • Sunlight: Full sun to partial shade
  • Soil: Fertile, loose, well-drained soil
  • Water: Regular and consistent
  • Germination Time: Approximately 3–10 days
  • Sowing Depth: Approximately ¼ inch
  • Spacing: Approximately 6–12 inches
  • Maturity: Approximately 30–60 days, depending on harvest stage and growing conditions
  • Uses: Salads, stir-fries, soups, sautés, steamed greens, pickling, containers, and raised beds

Growing Tips

  • Sow seeds directly outdoors during cool weather.
  • Cover seeds lightly with fine soil after sowing.
  • Keep the soil evenly moist during germination.
  • Thin seedlings to allow room for broad leaf development.
  • Make successive sowings for a longer harvest period.
  • Provide afternoon shade during hot weather to help reduce heat stress.

Seed Storage

Store unused seeds in a cool, dry, dark location. Keep them sealed in their original packet or an airtight container away from moisture, heat, and direct sunlight.

Unique Facts

  • Komatsuna is a traditional Japanese leafy vegetable related to turnips and other Brassica rapa crops.
  • Its name is associated with Komatsugawa, an area of Tokyo where the vegetable was historically cultivated.
  • The leaves and tender stems can both be used in cooking.
  • Komatsuna has a milder flavor than many strongly pungent mustard greens.

Growing Instructions

Planting Season: Sow during cool periods of spring and fall. In mild climates, Komatsuna can be grown during much of the cooler season.

Sowing: Prepare loose, fertile soil and sow seeds approximately ¼ inch deep. Cover lightly with soil.

Sunlight: Provide full sun to partial shade.

Soil: Use fertile, well-drained soil enriched with organic matter.

Watering: Keep soil consistently moist but not waterlogged. Regular moisture supports tender leaf growth.

Germination: Seeds generally germinate within approximately 3–10 days under favorable conditions.

Thinning: Thin seedlings to approximately 6–12 inches apart depending on the desired harvest size.

Fertilizing: Add compost or a balanced vegetable fertilizer if needed. Avoid excessive fertilizer applications.

Care: Keep weeds controlled and monitor plants for common brassica pests such as caterpillars and aphids.

Flowering/Maturity: Komatsuna may produce a flowering stalk as plants mature or temperatures rise. Small yellow flowers may appear before seed pods develop.

Harvesting: Harvest young leaves for tender salad greens or allow plants to mature for larger leaves. Pick outer leaves regularly or harvest the entire plant when desired.