Komatsuna Seeds
Brassica rapa var. perviridis
Komatsuna seeds grow into delicious mustard spinach. Sometimes referred to as Japanese mustard spinach, it is milder than the average mustard leaf, yet this variety with its white stems and thick leaves is filled with goodness and the delicious mustard taste without the spicy reputation.
Approx 300 seeds
- Grow Your Own
- Micro Green
- Most Light Conditions
- Fuss Free
Komatsuna Seeds – Quick Growing Guide
Komatsuna seeds produce tender, mild mustard greens ideal for salads and stir-fries. Sow from March to September, either directly outdoors or in pots. These Japanese mustard spinach seeds thrive in cool weather and mature quickly, making them a rewarding choice for gardeners seeking unusual vegetable seeds.
How to Sow, Grow and Harvest Komatsuna Seeds
- Sow:March–September, direct or in pots
- Germination:7–14 days
- Grow:In fertile, well-drained soil with partial to full sun
- Water:Keep soil consistently moist but not waterlogged
- Harvest:Pick leaves young for best flavour, from 30 days after sowing
- Best for:Pots, beds, windowsills
Also known as Japanese mustard spinach, Komatsuna offers a gentle mustard flavour without the usual spiciness. This unusual vegetable variety is easy to grow and perfect for pots or garden beds. Enjoy fresh, nutritious greens straight from your garden.
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Grow in Your Garden
Calendar
How to Grow
Komatsuna seeds can be sown outdoors from January through October, thriving in containers, balconies, or garden beds where the soil is fertile and well-prepared. This mild mustard spinach prefers a pot size of around 50 cm to develop tender, flavorful leaves with minimal effort.
Sowing
Sow Komatsuna seeds thinly into small holes on firm, fertile soil and cover lightly. Keep the soil consistently moist to encourage reliable germination during the sowing months of January to October.
Growing
Once seedlings emerge, thin them to avoid overcrowding, allowing enough space for healthy growth within a 50 cm container or garden bed. This biennial plant benefits from regular spacing to ensure the tender greens develop fully from May through November.
Plant care
Maintain consistent moisture by watering regularly, especially during warmer months, to keep the soil evenly damp but not waterlogged. Harvest young leaves frequently by cutting back to encourage continuous growth, ensuring a steady supply of mild mustard greens throughout the growing season.
About Komatsuna
Easy to grow, versatile for salads or cooking, ideal for pots or garden beds, mild mustard flavour, unusual and nutritious vegetable variety.
- Grow Your Own
- Micro Green
- Most Light Conditions
- Fuss Free
Eventual height & spread
History of Komatsuna
The name 'Komatsuna' means 'greens of Komatsu' in Japanese, named after Komatsugawa village near Tokyo. It was popularised by Tokugawa Yoshimune, the eighth shogun, who enjoyed it during a visit to the area.
| Other Names | Mustard spinach, Japanese mustard spinach and Tender greens. |
|---|---|
| Pet/Baby Safe | Known to be toxic to dogs and cats. |
FAQs
A mild mustard spinach, also called Japanese mustard spinach, known for its tender leaves and white stems.
Sow seeds in fertile soil or pots, keep moist, and harvest young leaves for best flavour.
Suitable for spring to autumn sowing, and can grow well in cooler weather.