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Brassica rapa var. perviridis (F1 Hybrid)


30-40 days (spring sowing), 50-80 days (fall sowing) from sowing
Regular price $3.50

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Seed Count

Komatsuna is a highly nutritive and productive leafy green commonly found in Japanese cuisine. The name Tatsu means "dragon" – for its strong, upright plant habit and ability to withstand high heat. 

Growing Information

  • Suitable temperature for germination: 70-85℉
  • Suitable temperature for growing: 60-80℉
  • Soil pH: 6.5-7.5
  • Days to maturity: 30-40 days (spring sowing), 50-80 days (fall sowing) from sowing


  • Sow 1-2 seeds 1/2" deep and 1/2" apart in rows, with 6" between rows.
  • Cover with 1/4" soil, press gently and water well.


  • When plants have 1-2 true leaves, thin to 1" spacing: remove any plants closer than 1" to allow remaining plants to grow.
  • At 3-4 true leaves, thin to 3" spacing.


  • Cultivate regularly and remove weeds.
  • Watering: allow soil to dry between waterings to prevent rot or disease issues.


  • Harvest at 10-12" height (30-40 days after sowing if sow in spring, 50-80 days if sow in autumn).

Cooking Information

Komatsuna can be used similarly to spinach, though it has a softer texture and cooks more quickly. Common for stir-fry, blanched, in soups or salads. 

Can also be quick-pickled.

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Shipping and taxes are calculated at checkout. Depending on your state, your seeds may be tax-exempt.

Satisfaction Guarantee

The Oishii Nippon Project is committed to your success, every step of the way.

We want you, our customer, to be 100% satisfied with all of our unique vegetable seeds. If anything you purchase from us proves unsatisfactory, we will either replace the item or refund the purchase price.


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